D4N-2131

Safety Limit Switch D4N Upgraded Safety Limit Switches Based on the Popular D4D, Providing a Full Lineup Conforming to International Standards • Lineup includes three contact models with 2NC/1NO and 3NC contact forms in addition to the previous contact forms 1NC/ 1NO, and 2NC. Models with MBB contacts are also available. • M12-connector models are available, saving on labor and simplifying replacement. • Standardized gold-clad contacts provide high contact reliability. Can be used with both standard loads and microloads. • Conforms to EN115 and EN81-2. • Lineup includes both slow-action and snap-action models with Zb contacts. • Certified standards: UL, EN (TÜV), and CCC Note: Be sure to read the “Safety Precautions” on page 268. Note: Contact your sales representative for details on models with safety standard certification. Model Number Structure ■ Model Number Legend D4N-@@@@ 1 2 3 1. Conduit/Connector size 1: Pg13.5 (1-conduit) 2: G1/2 (1-conduit) 3: 1/2-14NPT (1-conduit) 4: M20 (1-conduit) 5: Pg13.5 (2-conduit) 6: G1/2 (2-conduit) 7: 1/2-14NPT (2-conduit) 8: M20 (2-conduit) 9: M12 connector (1-conduit) 2. Built-in Switch 1: 1NC/1NO (snap-action) 2: 2NC (snap-action) A: 1NC/1NO (slow-action) B: 2NC (slow-action) C: 2NC/1NO (slow-action) D: 3NC (slow-action) E: 1NC/1NO (MBB contact) (slow-action) F: 2NC/1NO (MBB contact) (slow-action) 250 Safety Limit Switch D4N 3. Head and Actuator 20: Roller lever (resin lever, resin roller) 22: Roller lever (metal lever, resin roller) 25: Roller lever (metal lever, metal roller) 26: Roller lever (metal lever, bearing roller) 2G: Adjustable roller lever, form lock (metal lever, resin roller) 2H: Adjustable roller lever, form lock (metal lever, rubber roller) 31: Top plunger 32: Top roller plunger 62: One-way roller arm lever (horizontal) 72: One-way roller arm lever (vertical) 80: Cat whisker 87: Plastic rod RE:Fork lever lock (right operation) LE: Fork lever lock (left operation) Ordering Information ■ List of Models Switches with Two Contacts Actuator Conduit size Built-in switch mechanism 1NC/1NO (Snap-action) Direct opening Roller lever (resin 1-conduit lever, resin roller) 2-conduit Roller lever (metal 1-conduit lever, resin roller) 2-conduit Roller lever (metal 1-conduit lever, metal roller) Roller lever (metal 1-conduit lever, bearing roller) Plunger 1-conduit 2-conduit Roller plunger 1-conduit 2-conduit Model 2NC (Snap-action) Direct opening Model 1NC/1NO (Slow-action) Direct opening Model 2NC (Slow-action) Direct opening Model Pg13.5 D4N-1120 D4N-1220 D4N-1A20 D4N-1B20 G1/2 D4N-2120 D4N-2220 D4N-2A20 D4N-2B20 1/2-14NPT D4N-3120 D4N-3220 D4N-3A20 D4N-3B20 M20 D4N-4120 D4N-4220 D4N-4A20 D4N-4B20 D4N-9B20 M12 connector D4N-9120 D4N-9220 D4N-9A20 Pg13.5 D4N-5120 D4N-5220 D4N-5A20 D4N-5B20 G1/2 D4N-6120 D4N-6220 D4N-6A20 D4N-6B20 M20 D4N-8120 D4N-8220 D4N-8A20 D4N-8B20 Pg13.5 D4N-1122 D4N-1222 D4N-1A22 D4N-1B22 G1/2 D4N-2122 D4N-2222 D4N-2A22 D4N-2B22 1/2-14NPT D4N-3122 D4N-3222 D4N-3A22 D4N-3B22 M20 D4N-4122 D4N-4222 D4N-4A22 D4N-4B22 D4N-9B22 M12 connector D4N-9122 D4N-9222 D4N-9A22 Pg13.5 D4N-5122 D4N-5222 D4N-5A22 D4N-5B22 G1/2 D4N-6122 D4N-6222 D4N-6A22 D4N-6B22 M20 D4N-8122 D4N-8222 D4N-8A22 D4N-8B22 Pg13.5 D4N-1125 D4N-1225 D4N-1A25 D4N-1B25 G1/2 D4N-2125 D4N-2225 D4N-2A25 D4N-2B25 1/2-14NPT D4N-3125 D4N-3225 D4N-3A25 D4N-3B25 M20 D4N-4125 D4N-4225 D4N-4A25 D4N-4B25 D4N-9B25 M12 connector D4N-9125 D4N-9225 D4N-9A25 Pg13.5 D4N-1126 D4N-1226 D4N-1A26 D4N-1B26 G1/2 D4N-2126 D4N-2226 D4N-2A26 D4N-2B26 1/2-14NPT D4N-3126 D4N-3226 D4N-3A26 D4N-3B26 M20 D4N-4126 D4N-4226 D4N-4A26 D4N-4B26 D4N-9B26 M12 connector D4N-9126 D4N-9226 D4N-9A26 Pg13.5 D4N-1131 D4N-1231 D4N-1A31 D4N-1B31 G1/2 D4N-2131 D4N-2231 D4N-2A31 D4N-2B31 1/2-14NPT D4N-3131 D4N-3231 D4N-3A31 D4N-3B31 M20 D4N-4131 D4N-4231 D4N-4A31 D4N-4B31 D4N-9B31 M12 connector D4N-9131 D4N-9231 D4N-9A31 Pg13.5 D4N-5131 D4N-5231 D4N-5A31 D4N-5B31 G1/2 D4N-6131 D4N-6231 D4N-6A31 D4N-6B31 M20 D4N-8131 D4N-8231 D4N-8A31 D4N-8B31 Pg13.5 D4N-1132 D4N-1232 D4N-1A32 D4N-1B32 G1/2 D4N-2132 D4N-2232 D4N-2A32 D4N-2B32 1/2-14NPT D4N-3132 D4N-3232 D4N-3A32 D4N-3B32 M20 D4N-4132 D4N-4232 D4N-4A32 D4N-4B32 M12 connector D4N-9132 D4N-9232 D4N-9A32 D4N-9B32 Pg13.5 D4N-5132 D4N-5232 D4N-5A32 D4N-5B32 G1/2 D4N-6132 D4N-6232 D4N-6A32 D4N-6B32 M20 D4N-8132 D4N-8232 D4N-8A32 D4N-8B32 Safety Limit Switch D4N 251 Actuator Conduit size Built-in switch mechanism 1NC/1NO (Snap-action) Direct opening One-way roller arm lever (horizontal) 1-conduit 2-conduit One-way roller arm lever (vertical) 1-conduit 2-conduit Adjustable roller 1-conduit lever, form lock (metal lever, resin roller) 2-conduit Adjustable roller lever, form lock (metal lever, rubber roller) 1-conduit 2-conduit Model 2NC (Snap-action) Direct opening Model 1NC/1NO (Slow-action) Direct opening Model 2NC (Slow-action) Direct opening Model Pg13.5 D4N-1162 D4N-1262 D4N-1A62 D4N-1B62 G1/2 D4N-2162 D4N-2262 D4N-2A62 D4N-2B62 1/2-14NPT D4N-3162 D4N-3262 D4N-3A62 D4N-3B62 M20 D4N-4162 D4N-4262 D4N-4A62 D4N-4B62 M12 connector D4N-9162 D4N-9262 D4N-9A62 D4N-9B62 Pg13.5 D4N-5162 D4N-5262 D4N-5A62 D4N-5B62 G1/2 D4N-6162 D4N-6262 D4N-6A62 D4N-6B62 M20 D4N-8162 D4N-8262 D4N-8A62 D4N-8B62 Pg13.5 D4N-1172 D4N-1272 D4N-1A72 D4N-1B72 G1/2 D4N-2172 D4N-2272 D4N-2A72 D4N-2B72 1/2-14NPT D4N-3172 D4N-3272 D4N-3A72 D4N-3B72 M20 D4N-4172 D4N-4272 D4N-4A72 D4N-4B72 M12 connector D4N-9172 D4N-9272 D4N-9A72 D4N-9B72 Pg13.5 D4N-5172 D4N-5272 D4N-5A72 D4N-5B72 G1/2 D4N-6172 D4N-6272 D4N-6A72 D4N-6B72 M20 D4N-8172 D4N-8272 D4N-8A72 D4N-8B72 Pg13.5 D4N-112G D4N-122G D4N-1A2G D4N-1B2G G1/2 D4N-212G D4N-222G D4N-2A2G D4N-2B2G 1/2-14NPT D4N-312G D4N-322G D4N-3A2G D4N-3B2G M20 D4N-412G D4N-422G D4N-4A2G D4N-4B2G M12 connector D4N-912G D4N-922G D4N-9A2G D4N-9B2G G1/2 D4N-612G D4N-622G D4N-6A2G D4N-6B2G M20 D4N-812G D4N-822G D4N-8A2G D4N-8B2G Pg13.5 D4N-112H D4N-122H D4N-1A2H D4N-1B2H G1/2 D4N-212H D4N-222H D4N-2A2H D4N-2B2H 1/2-14NPT D4N-312H D4N-322H D4N-3A2H D4N-3B2H M20 D4N-412H D4N-422H D4N-4A2H D4N-4B2H M12 connector D4N-912H D4N-922H D4N-9A2H D4N-9B2H G1/2 D4N-612H D4N-622H D4N-6A2H D4N-6B2H M20 D4N-812H D4N-822H D4N-8A2H D4N-8B2H Note: It is recommended that M20 be used for Switches to be exported to Europe and 1/2-14NPT be used for Switches to be exported to North American countries. Switches with Three Contacts and MBB Contacts Actuator Conduit size Built-in switch mechanism 2NC/1NO (Slow-action) Direct opening Roller lever (resin 1-conduit lever, resin roller) 2-conduit 252 Model 3NC (Slow-action) Direct opening Model 1NC/1NO MBB (Slow-action) Direct opening Model 2NC/1NO MBB (Slow-action) Direct opening Model Pg13.5 D4N-1C20 D4N-1D20 D4N-1E20 D4N-1F20 G1/2 D4N-2C20 D4N-2D20 D4N-2E20 D4N-2F20 1/2-14NPT D4N-3C20 D4N-3D20 D4N-3E20 D4N-3F20 M20 D4N-4C20 D4N-4D20 D4N-4E20 D4N-4F20 M12 connector --- --- D4N-9E20 --- Pg13.5 D4N-5C20 D4N-5D20 D4N-5E20 D4N-5F20 G1/2 D4N-6C20 D4N-6D20 D4N-6E20 D4N-6F20 M20 D4N-8C20 D4N-8D20 D4N-8E20 D4N-8F20 Safety Limit Switch D4N Actuator Conduit size Built-in switch mechanism 2NC/1NO (Slow-action) Direct opening Roller lever (metal 1-conduit lever, resin roller) 2-conduit Roller lever (metal 1-conduit lever, metal roller) Roller lever (metal 1-conduit lever, bearing roller) Plunger 1-conduit 2-conduit Roller plunger 1-conduit 2-conduit One-way roller arm lever (horizontal) 1-conduit 2-conduit One-way roller arm lever (vertical) 1-conduit 2-conduit Model 3NC (Slow-action) Direct opening Model 1NC/1NO MBB (Slow-action) Direct opening Model 2NC/1NO MBB (Slow-action) Direct opening Model Pg13.5 D4N-1C22 D4N-1D22 D4N-1E22 D4N-1F22 G1/2 D4N-2C22 D4N-2D22 D4N-2E22 D4N-2F22 1/2-14NPT D4N-3C22 D4N-3D22 D4N-3E22 D4N-3F22 M20 D4N-4C22 D4N-4D22 D4N-4E22 D4N-4F22 M12 connector --- --- D4N-9E22 --- Pg13.5 D4N-5C22 D4N-5D22 D4N-5E22 D4N-5F22 G1/2 D4N-6C22 D4N-6D22 D4N-6E22 D4N-6F22 M20 D4N-8C22 D4N-8D22 D4N-8E22 D4N-8F22 Pg13.5 D4N-1C25 D4N-1D25 D4N-1E25 D4N-1F25 G1/2 D4N-2C25 D4N-2D25 D4N-2E25 D4N-2F25 1/2-14NPT D4N-3C25 D4N-3D25 D4N-3E25 D4N-3F25 M20 D4N-4C25 D4N-4D25 D4N-4E25 D4N-4F25 M12 connector --- --- D4N-9E25 --- Pg13.5 D4N-1C26 D4N-1D26 D4N-1E26 D4N-1F26 G1/2 D4N-2C26 D4N-2D26 D4N-2E26 D4N-2F26 1/2-14NPT D4N-3C26 D4N-3D26 D4N-3E26 D4N-3F26 M20 D4N-4C26 D4N-4D26 D4N-4E26 D4N-4F26 M12 connector --- --- D4N-9E26 --- Pg13.5 D4N-1C31 D4N-1D31 D4N-1E31 D4N-1F31 G1/2 D4N-2C31 D4N-2D31 D4N-2E31 D4N-2F31 1/2-14NPT D4N-3C31 D4N-3D31 D4N-3E31 D4N-3F31 M20 D4N-4C31 D4N-4D31 D4N-4E31 D4N-4F31 M12 connector --- --- D4N-9E31 --- Pg13.5 D4N-5C31 D4N-5D31 D4N-5E31 D4N-5F31 G1/2 D4N-6C31 D4N-6D31 D4N-6E31 D4N-6F31 M20 D4N-8C31 D4N-8D31 D4N-8E31 D4N-8F31 Pg13.5 D4N-1C32 D4N-1D32 D4N-1E32 D4N-1F32 G1/2 D4N-2C32 D4N-2D32 D4N-2E32 D4N-2F32 1/2-14NPT D4N-3C32 D4N-3D32 D4N-3E32 D4N-3F32 M20 D4N-4C32 D4N-4D32 D4N-4E32 D4N-4F32 M12 connector --- --- D4N-9E32 --- Pg13.5 D4N-5C32 D4N-5D32 D4N-5E32 D4N-5F32 G1/2 D4N-6C32 D4N-6D32 D4N-6E32 D4N-6F32 M20 D4N-8C32 D4N-8D32 D4N-8E32 D4N-8F32 Pg13.5 D4N-1C62 D4N-1D62 D4N-1E62 D4N-1F62 G1/2 D4N-2C62 D4N-2D62 D4N-2E62 D4N-2F62 1/2-14NPT D4N-3C62 D4N-3D62 D4N-3E62 D4N-3F62 M20 D4N-4C62 D4N-4D62 D4N-4E62 D4N-4F62 M12 connector --- --- D4N-9E62 ---- Pg13.5 D4N-5C62 D4N-5D62 D4N-5E62 D4N-5F62 G1/2 D4N-6C62 D4N-6D62 D4N-6E62 D4N-6F62 M20 D4N-8C62 D4N-8D62 D4N-8E62 D4N-8F62 Pg13.5 D4N-1C72 D4N-1D72 D4N-1E72 D4N-1F72 G1/2 D4N-2C72 D4N-2D72 D4N-2E72 D4N-2F72 1/2-14NPT D4N-3C72 D4N-3D72 D4N-3E72 D4N-3F72 M20 D4N-4C72 D4N-4D72 D4N-4E72 D4N-4F72 M12 connector --- --- D4N-9E72 --- Pg13.5 D4N-5C72 D4N-5D72 D4N-5E72 D4N-5F72 G1/2 D4N-6C72 D4N-6D72 D4N-6E72 D4N-6F72 M20 D4N-8C72 D4N-8D72 D4N-8E72 D4N-8F72 Safety Limit Switch D4N 253 Actuator Conduit size Built-in switch mechanism 2NC/1NO (Slow-action) Direct opening Adjustable roller 1-conduit lever, form lock (metal lever, resin roller) 2-conduit Adjustable roller lever, form lock (metal lever, rubber roller) 1-conduit 2-conduit Model 3NC (Slow-action) Direct opening Model 1NC/1NO MBB (Slow-action) Direct opening Model 2NC/1NO MBB (Slow-action) Direct opening Model Pg13.5 D4N-1C2G D4N-1D2G D4N-1E2G D4N-1F2G G1/2 D4N-2C2G D4N-2D2G D4N-2E2G D4N-2F2G 1/2-14NPT D4N-3C2G D4N-3D2G D4N-3E2G D4N-3F2G M20 D4N-4C2G D4N-4D2G D4N-4E2G D4N-4F2G M12 connector --- --- D4N-9E2G --- G1/2 D4N-6C2G D4N-6D2G D4N-6E2G D4N-6F2G M20 D4N-8C2G D4N-8D2G D4N-8E2G D4N-8F2G Pg13.5 D4N-1C2H D4N-1D2H D4N-1E2H D4N-1F2H G1/2 D4N-2C2H D4N-2D2H D4N-2E2H D4N-2F2H 1/2-14NPT D4N-3C2H D4N-3D2H D4N-3E2H D4N-3F2H M20 D4N-4C2H D4N-4D2H D4N-4E2H D4N-4F2H M12 connector --- --- D4N-9E2H --- G1/2 D4N-6C2H D4N-6D2H D4N-6E2H D4N-6F2H M20 D4N-8C2H D4N-8D2H D4N-8E2H D4N-8F2H Note: It is recommended that M20 be used for Switches to be exported to Europe and 1/2-14NPT be used for Switches to be exported to North American countries. General-purpose Switches with Two Contacts Actuator Conduit size Built-in switch mechanism 1NC/1NO (Snap-action) Direct opening Fork lever lock (right operation) 1-conduit G1/2 --- Model --- 2NC (Snap-action) Direct opening --- Model --- 1NC/1NO (Slow-action) Direct opening --- 1/2-14NPT M20 2-conduit G1/2 --- --- --- M20 Fork lever lock (left operation) 1-conduit G1/2 --- --- --- 1/2-14NPT M20 2-conduit G1/2 --- --- --- M20 Cat whisker 1-conduit 2-conduit G1/2 --- 1-conduit 2-conduit --- D4N-2280 D4N-3180 D4N-3280 M20 D4N-4180 D4N-4280 G1/2 --- M20 Plastic rod D4N-2180 1/2-14NPT G1/2 D4N-6180 --- D4N-8180 --- D4N-2187 D4N-6280 --- D4N-2287 D4N-3187 D4N-3287 M20 D4N-4187 D4N-4287 M20 --- D4N-6187 D4N-8187 Direct opening --- D4N-6287 D4N-8287 Model D4N-2ARE --- D4N-2BRE D4N-3ARE D4N-3BRE D4N-4ARE D4N-4BRE D4N-6ARE --- D4N-6BRE D4N-8ARE D4N-8BRE D4N-2ALE --- D4N-2BLE D4N-3ALE D4N-3BLE D4N-4ALE D4N-4BLE D4N-6ALE --- D4N-6BLE D4N-8ALE D4N-8BLE --- --- D4N-2B80 D4N-3B80 D4N-4B80 --- --- D4N-8280 1/2-14NPT G1/2 --- Model 2NC (Slow-action) D4N-6B80 D4N-8B80 --- --- D4N-2B87 D4N-3B87 D4N-4B87 --- --- D4N-6B87 D4N-8B87 Note: 1. It is recommended that M20 be used for Switches to be exported to Europe and 1/2-14NPT be used for Switches to be exported to North American countries. 2. Mechanically speaking, these models are basic limit switches. 254 Safety Limit Switch D4N General-purpose Switches with Three Contacts and MBB Contacts Actuator Conduit size Fork lever lock 1-conduit (right operation) 2-conduit G1/2 Built-in switch mechanism Direct 2NC/1NO Direct 3NC Direct opening (Slow-action) opening (Slow-action) opening 1NC/1NO Direct 2NC/1NO MBB opening MBB (Slow-action) (Slow-action) --- D4N-2ERE 1-conduit 2-conduit 1-conduit D4N-3FRE D4N-4DRE D4N-4ERE D4N-4FRE G1/2 --- G1/2 D4N-6CRE --- D4N-8CRE --- D4N-2CLE D4N-6DRE --- D4N-6ERE D4N-8DRE --- D4N-2DLE --- D4N-6FRE --- D4N-2FLE D4N-8ERE --- D4N-8FRE D4N-2ELE 1/2-14NPT D4N-3CLE D4N-3DLE D4N-3ELE D4N-3FLE M20 D4N-4CLE D4N-4DLE D4N-4ELE D4N-4FLE G1/2 --- G1/2 D4N-6CLE --- D4N-8CLE --- --- G1/2 G1/2 --- --- D4N-6ELE D4N-2D80 --- D4N-6FLE D4N-8ELE --- D4N-8FLE --- --- --- D4N-3D80 D4N-4D80 --- --- D4N-6D80 --- --- --- --- --- --- D4N-8D80 --- --- D4N-2D87 D4N-3D87 M20 G1/2 D4N-6DLE D4N-8DLE 1/2-14NPT 2-conduit D4N-2FRE D4N-4CRE M20 1-conduit --- M20 M20 Plastic rod --- D4N-3ERE 1/2-14NPT 2-conduit D4N-2DRE D4N-3DRE M20 Cat whisker --- D4N-3CRE M20 Fork lever lock (left operation) D4N-2CRE 1/2-14NPT D4N-4D87 --- --- M20 D4N-6D87 D4N-8D87 Note: 1. It is recommended that M20 be used for Switches to be exported to Europe and 1/2-14NPT be used for Switches to be exported to North American countries. 2. Mechanically speaking, these models are basic limit switches. Specifications ■ Standards and EC Directives • Conforms to the following EC Directives: Machinery Directive Low Voltage Directive EN50047 EN60204-1 EN1088 GS-ET-15 ■ Certified Standard Ratings TÜV (EN60947-5-1), CCC (GB14048.5) Utilization category Item Rated operating current (Ie) AC-15 DC-13 3A 0.27 A Rated operating voltage (Ue) 240 V ■ Certified Standards Certification body TÜV Product Service Standard EN60947-5-1 (certified direct opening) File No. (See note 1.) UL (See note 2.) UL508, CSA C22.2 No.14 E76675 CCC (CQC) GB14048.5 2004010305105973 Note: 1. Consult your OMRON representative for details. 2. Certification for CSA C22.2 No. 14 is authorized by the UL mark. 3. Ask your OMRON representative for information on certified models. 250 V Note: Use a 10-A fuse type gI or gG that conforms to IEC269 as a short-circuit protection device. This fuse is not built into the Switch. UL/CSA (UL508, CSA C22.2 No. 14) A300 Rated voltage 120 VAC Carry current Current Make 10 A 240 VAC Break 60 A 6A 30 A 3A Volt-amperes Make Break 7,200 VA 720 VA Q300 Rated voltage 125 VDC 250 VDC Carry current Current Make 2.5 A Break 0.55 A 0.55 A 0.27 A 0.27 A Volt-amperes Make 69 VA Safety Limit Switch D4N Break 69 VA 255 ■ Characteristics Degree of protection (See note 3.) IP67 (EN60947-5-1) Durability (See note 4.) Mechanical 15,000,000 operations min. (See note 7.) Electrical 500,000 operations min. for a resistive load of 3 A at 250 VAC (See note 5.) 300,000 operations min. for a resistive load of 10 A at 250 VAC Operating speed 1 to 500 mm/s (D4N-1120) Operating frequency 30 operations/minute max. Contact resistance 25 m Ω max. (Initial value) Minimum applicable load (See note 6.) Resistive load of 1 mA at 5 VDC (N-level reference value) Rated insulation voltage (Ui) 300 V Protection against electric shock Class II (double insulation) Pollution degree (operating environment) Level 3 (EN60947-5-1) Impulse withstand voltage (EN60947-5-1) Between terminals of the same polarity: 2.5 kV Between terminals of different polarities: 4 kV Between other terminals and uncharged metallic parts: 6 kV Insulation resistance 100 M Ω min. Contact gap Snap-action: 2 x 0.5 mm min Slow-action: 2 x 2 mm min Vibration resistance Malfunction Shock resistance Destruction 10 to 55 Hz, 0.75-mm single amplitude 1,000 m/s2 min. Malfunction 300 m/s2 min. Conditional short-circuit current 100 A (EN60947-5-1) Rated open thermal current (Ith) 10 A (EN60947-5-1) Ambient temperature Operating: −30°C to 70°C with no icing Ambient humidity Operating: 95% max. Weight Approx. 82 g (D4N-1120) Approx. 99 g (D4N-5120) Note: 1. The above values are initial values. 2. Once a contact has been used to switch a standard load, it cannot be used for a load of a smaller capacity. Doing so may result in roughening of the contact surface and contact reliability may be lost. 3. The degree of protection is tested using the method specified by the standard (EN60947-5-1). Confirm that sealing properties are sufficient for the operating conditions and environment beforehand. Although the switch box is protected from dust or water penetration, do not use the D4N in places where foreign material such as dust, dirt, oil, water, or chemicals may penetrate through the head. Otherwise, premature wear, Switch damage or malfunctioning may occur. 4. The durability is for an ambient temperature of 5°C to 35°C and an ambient humidity of 40% to 70%. For more details, consult your OMRON representative. 5. Do not pass the 3-A, 250-VAC load through more than 2 circuits. 6. This value will vary with the switching frequency, environment, and reliability level. Confirm that correct operation is possible with the actual load beforehand. 7. The mechanical durability of fork lever lock models is 10,000,000 operations min. 256 Safety Limit Switch D4N Connections ■ Contact Form Model D4N-@1@ Contact Contact form 1NC/1NO (Snapaction) 13 Zb 31 D4N-@2@ 14 D4N-@B@ D4N-@D@ Remarks ON Stroke 11 12 31 32 1NC/1NO (Slowaction) 11-12 31-32 ON Stroke Zb 11 12 33 34 11-12 33-34 ON Stroke 11 12 31 32 2NC/1NO (Slowaction) ON ON Only NC contacts 11-12 and 21-22 have a certified direct opening mechanism. The terminals 11-12, 21-22, and 33-34 can be used as unlike poles. Zb 11 12 21 22 33 34 Stroke 3NC (Slow-action) Zb D4N-@E@ D4N-@F@ 11 12 21 22 31 32 1NC/1NO MBB (Slow-action) 2NC/1NO MBB (Slow-action) 11-12 21-22 31-32 ON Zb 11 12 33 34 ON 12 21 22 33 34 11-12 21-22 33-34 ON Stroke Only NC contacts 11-12 have a certified direct opening mechanism. The terminals 11-12 and 33-34 can be used as unlike poles. Stroke Zb 11 Only NC contacts 11-12, 21-22, and 31-32 have a certified direct opening mechanism. The terminals 11-12, 21-22, and 31-32 can be used as unlike poles. Stroke 11-12 33-34 Only NC contacts 11-12 have a certified direct opening mechanism. Only NC contacts 11-12 and 31-32 have a certified direct opening mechanism. The terminals 11-12 and 31-32 can be used as unlike poles. Stroke 11-12 21-22 33-34 Only NC contacts 11-12 and 31-32 have a certified direct opening mechanism. The terminals 11-12 and 31-32 can be used as unlike poles. The terminals 11-12 and 33-34 can be used as unlike poles. 2NC (Slow-action) 11-12 31-32 Only NC contacts 31-32 have a certified direct opening mechanism. The terminals 13-14 and 31-32 can be used as unlike poles. 2NC (Snap-action) Zb D4N-@C@ 13-14 31-32 32 Zb D4N-@A@ Operating pattern Only NC contacts 11-12 and 21-22 have a certified direct opening mechanism. The terminals 11-12, 21-22 and 33-34 can be used as unlike poles. Note: 1. Terminals are numbered according to EN50013 and the contact forms are according to IEC947-5-1. 2. MBB (Make Before Break) contacts have an overlapping structure, so that before the normally closed contact (NC) opens, the normally open contact (NO) closes. Safety Limit Switch D4N 257 Operation ■ Direct Opening Mechanism 1NC/1NO Contact (Slow-action) Fixed contact (NC) Contact spring Movable contact Fixed contact (NO) Plunger Return spring Conforms to EN60947-5-1 Direct Opening Operation (Only the NC contact side has a direct opening mechanism.) When contact welding occurs, the contacts are separated from each other by the plunger being pushed in. 2NC Contact (Slow-action) Fixed contact (NC) Movable contact Contact spring Plunger Conforms to EN60947-5-1 Direct Opening Operation (Both NC contacts have a direct opening mechanism.) Return spring Nomenclature ■ Structure Safety-oriented Lever Setting (Form-lock construction) Grooves which engage the lever are cut in the lever and rotary shaft to prevent the lever from slipping against the rotary shaft. There are resin-lever and metal-lever types. Head The direction of the switch head can be varied to any of the four directions. (Roller plunger models can be mounted in either of two directions at a 90˚ angle.) Conduit Opening A wide variety of conduits is available. Built-in Switch The built-in switch has a direct opening mechanism that forcibly separates the NC contact even when there is contact deposit. Cover The cover, with a hinge on its lower part, can be opened by removing the screw of the cover, which ensures ease of maintenance and wiring. 1-conduit 2-conduit Pg13.5 Size Yes Yes G1/2 Yes Yes 1/2-14NPT Yes Yes M20 Yes Yes M12 connector Yes --- Note: M12 connector types are not available for Switches with three contacts. 258 Safety Limit Switch D4N Dimensions ■ Switches Note: All units are in millimeters unless otherwise indicated. 1-conduit Models Roller Lever (Resin Lever, Resin Roller) D4N-1@20 D4N-2@20 D4N-3@20 D4N-4@20 47 40 D4N-9@20 (See note 2.) 17.5 dia. × 6.8 Roller Lever (Metal Lever, Resin Roller) D4N-1@22 D4N-2@22 D4N-3@22 D4N-4@22 45± D4N-9@22 (See note 2.) 17.5 dia. × 6.8 39.5± ±1 resin roller 1 ±1 1 (27) resin roller 11±0.2 26R Resin lever 26R Metal lever 20.5 × 20.5 (31) 11±0.2 20.5 × 20.5 27.5 18 20±0.1 22±0.1 22±0.2 31 max. 55 14.2 30 Conduit cap 47±0.2 Two, 4+0.15 dia. holes 0 Depth: 5 22±0.2 31 max. 47±0.2 Conduit cap Bearing roller (31) 11±0.2 26R 14.2 30 26R Metal lever (31.5) 11±0.2 20.5 × 20.5 20.5 × 20.5 18 27.5 9±0.2 2.5 21.5 20±0.1 22±0.1 22±0.2 31 max. 55 47±0.2 21.5 20±0.1 22±0.1 2.15±0.05R mounting holes Conduit cap Two, 4+0.15 dia. holes 0 Depth: 5 1 27.5 55 2.15±0.05R mounting holes 1 1 9±0.2 2.5 21.5 20±0.1 22±0.1 Roller Lever (Metal Lever, Bearing Roller) D4N-1@26 D4N-2@26 D4N-3@26 D4N-4@26 43.6± D4N-9@26 (See note 2.) 17 dia. × 6 39± 39.5±1 sintered stainless steel roller Metal lever 2.5 2.15±0.05R mounting holes Roller Lever (Metal Lever, Metal Roller) D4N-1@25 D4N-2@25 D4N-3@25 D4N-4@25 D4N-9@25 (See note 2.) 17.5 dia. × 7 45± 18 9±0.2 21.5 2.5 47±0.2 55 27.5 18 9±0.2 14.2 30 22±0.2 31 max. Two, 4+0.15 dia. holes 0 Depth: 5 2.15±0.05R mounting holes Conduit cap 14.2 30 Two, 4+0.15 dia. holes 0 Depth: 5 Note: 1. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 2. Refer to page 262 for details on M12 connectors. Snap-action (1NC/1NO) (2NC), Slow-action (2NC) (3NC) Model D4N-@120 D4N-@220 D4N-@B20 D4N-@D20 D4N-@122 D4N-@222 D4N-@B22 D4N-@D22 D4N-@125 D4N-@225 D4N-@B25 D4N-@D25 D4N-@126 D4N-@226 D4N-@B26 D4N-@D26 Slow-action (1NC/1NO) (2NC/1NO) Model D4N-@A20 D4N-@C20 D4N-@E20 D4N-@F20 OF max. 5.0 N OF max. 5.0 N RF min. 0.5 N RF min. 0.5 N PT (See note 1.) 18° to 27° PT 18° to 27° PT (2nd) (See note 2.) (44°) OT min. 40° PT (See note 3.) MD max. (See note 2.) 14° PT (2nd) (See note 4.) (18°) OT min. 40° OP --- OP --- TT (See note 3.) (80°) TT (See note 5.) (80°) DOT min. (See note 4.) 50° DOT min. (See note 6.) 50° DOF min. (See note 4.) 20 N DOF min. (See note 6.) 20 N Note: 1. Variation occurs in the simultaneity of contact opening/closing operations of 2NC, 2NC/1NO, and 3NC contacts. Check contact operation. 2. Only for snap-action models. 3. Reference value. 4. For safe use, always make sure that the minimum values or greater are provided. D4N-@A22 D4N-@C22 D4N-@E22 D4N-@F22 D4N-@A25 D4N-@C25 D4N-@E25 D4N-@F25 D4N-@A26 D4N-@C26 D4N-@E26 D4N-@F26 27.5° to 36.5° Note: 1. These PT values are possible when the NC contacts are open (OFF). 2. These PT values are possible when the NO contacts are closed (ON). 3. Only for MBB models. 4. Reference values for MBB models only. 5. Reference values. 6. For safe use, always make sure that the minimum values or greater are provided. Safety Limit Switch D4N 259 1-conduit Models Roller Plunger D4N-1@32 D4N-2@32 D4N-3@32 D4N-4@32 D4N-9@32 (See note 2.) Plunger D4N-1@31 D4N-2@31 D4N-3@31 D4N-4@31 D4N-9@31 (See note 2.) 25±0.1 Two, 3±0.05 dia. holes 12 dia. 6-dia. resin plunger OP OP 2.5 20±0.1 22±0.1 47±0.2 22±0.2 31 max. 55 Conduit cap 14.2 30 12.5 dia. × 5 resin roller 23.3 19.5±0.2 2.15±0.05R mounting holes dia. holes Two, 4+0.15 0 Depth: 5 12 dia. × 5 resin roller (31.5) 21.5 11±0.2 19.5±0.2 9±0.2 2.5 2.5 55 47±0.2 20±0.1 22±0.1 22±0.2 31 max. Conduit cap 14.2 30 +0.15 0 Two, 4 dia. holes Depth: 5 Safety Limit Switch D4N 2.15±0.05R mounting holes Operating direction 55 Note: 1. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 2. Refer to page 262 for details on M12 connectors. 260 14.2 30 10.2 9±0.2 22±0.2 31 max. OP 12 11±0.2 10.2 47±0.2 Conduit cap R19 14.7 20R 20±0.1 22±0.1 2.15±0.05R mounting holes 22±0.2 31 max. dia. holes Two, 4+0.15 0 Depth: 5 (31.5) 21.5 11±0.2 14.8 13.5 20±0.1 22±0.1 One-way Roller Arm Lever (Vertical) D4N-1@72 D4N-2@72 D4N-3@72 D4N-4@72 D4N-9@72 (See note 2.) Operating direction 11±0.2 47±0.2 2.15±0.05R mounting holes One-way Roller Arm Lever (Horizontal) D4N-1@62 D4N-2@62 D4N-3@62 D4N-4@62 D4N-9@62 (See note 2.) OP 25.2 9±0.2 9±0.2 2.5 55 20.5 × 20.5 9.5 dia. × 5 resin roller (31.5) 21.5 11±0.2 (31.5) 21.5 11±0.2 Conduit cap 14.2 30 Two, 4+0.15 dia. holes 0 Depth: 5 Snap-action (1NC/1NO) (2NC), Slow-action (2NC) (3NC) Model D4N-@131 D4N-@231 D4N-@B31 D4N-@D31 D4N-@132 D4N-@232 D4N-@B32 D4N-@D32 D4N-@162 D4N-@262 D4N-@B62 D4N-@D62 D4N-@172 D4N-@272 D4N-@B72 D4N-@D72 OF max. 6.5 N 6.5 N 5.0 N 5.0 N RF min. 1.5 N 1.5 N 0.8 N 0.8 N PT max. 2 mm 2 mm 4 mm 4 mm OT min. 4 mm 4 mm 5 mm 5 mm MD max. 1 mm (See note 2.) 1 mm 1.5 mm 1.5 mm 28.6 ±0.8 mm 37 ±0.8 mm 27 ±0.8 mm TT (6 mm) (See note 3.) (6 mm) (9 mm) (9 mm) DOT min. 3.2 mm (See note 4.) 3.2 mm 5.8 mm 4.8 mm DOF min. 20 N (See note 4.) 20 N 20 N 20 N OP 18.2 ±0.5 mm Note: 1. Variation occurs in the simultaneity of contact opening/ closing operations of 2NC, 2NC/1NO, and 3NC contacts. Check contact operation. 2. Only for snap-action models. 3. Reference value. 4. For safe use, always make sure that the minimum values or greater are provided. Slow-action (1NC/1NO) (2NC/1NO) Model D4N-@A31 D4N-@C31 D4N-@E31 D4N-@F31 D4N-@A32 D4N-@C32 D4N-@E32 D4N-@F32 D4N-@A62 D4N-@C62 D4N-@E62 D4N-@F62 D4N-@A72 D4N-@C72 D4N-@E72 D4N-@F72 OF max. 6.5 N 6.5 N 5.0 N 5.0 N RF min. 1.5 N 1.5 N 0.8 N 0.8 N PT max. 2 mm (See note 1.) 2 mm 4 mm 4 mm PT (2nd) (2.9 mm) (See note 2.) (2.9 mm) (5.2 mm) (4.3 mm) PT max. 2.8 mm (See note 3.) 2.8 mm 4 mm 4 mm PT (2nd) (1 mm) (See note 4.) (1 mm) (1.5 mm) (1.5 mm) 5 mm OT min. OP 4 mm 4 mm 5 mm 18.2 ±0.5 mm 28.6 ±0.8 mm 37 ±0.8 mm 27 ±0.8 mm OP 17.4 (See note 5.) ±0.5 mm 28 ±0.8 mm 36 ±0.8 mm 26.1 ±0.8 mm TT (6 mm) (See note 6.) (6 mm) (9 mm) (9 mm) DOT min. 3.2 mm (See note 7.) 3.2 mm 5.8 mm 4.8 mm DOF min. 20 N (See note 7.) 20 N 20 N 20 N Note: 1. These PT values are possible when the NC contacts are open (OFF). 2. These PT values are possible when the NO contacts are closed (ON). 3. Only for MBB models. 4. Reference values for MBB models. 5. Only for MBB models. 6. Reference value. 7. For safe use, always make sure that the minimum values or greater are provided. Safety Limit Switch D4N 261 1-conduit Models Adjustable Roller Lever, Form Lock (with Metal Lever, Resin Roller) D4N-1@2G D4N-2@2G D4N-3@2G D4N-4@2G D4N-9@2G (See note 2.) 17.5 dia. × 6.8 resin roller 20 to 66R Adjustable Roller Lever, Form Lock (with Metal Lever, Rubber Roller) D4N-1@2H D4N-2@2H D4N-3@2H D4N-4@2H D4N-9@2H (See note 2.) 50 dia. × 8 45±1 39.5±1 (31) Bearing 11±0.2 rubber roller 20.5 × 20.5 48.2±1 41.3±1 (29.2) 11±0.2 32 to 66R 18 27.5 21.5 2.5 55 20.5×20.5 9±0.2 47±0.2 20±0.1 22±0.1 18 27.5 9±0.2 2.15±0.05R mounting holes 55 Conduit cap 22±0.2 31 max. 21.5 2.5 47±0.2 20±0.1 22±0.1 2.15±0.05R mounting holes Stainless steel lever 14.2 dia. holes Two, 4+0.15 0 30 Depth: 5 22±0.2 31 max. Conduit cap 14.2 30 Two, 4+0.15 dia. holes 0 Depth: 5 Note: 1. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 2. Refer to following diagrams for details on M12 connectors. Snap-action (1NC/1NO) (2NC), Slow-action (2NC) (3NC) Model D4N-@12H D4N-@22H D4N-@B2H D4N-@D2H OF max. 4.5 N RF min. 0.4 N PT 18° to 27° OT min. 40° MD max. (See note 3.) 14° OP --- TT (See note 4.) (80°) DOT min. (See note 5.) 50° DOF min. (See note 5.) 20 N D4N-@12G D4N-@22G D4N-@B2G D4N-@D2G (See note 2.) Note: 1. Variation occurs in the simultaneity of contact opening/ closing operations of 2NC, 2NC/1NO, and 3NC contacts. Check contact operation. 2. The operating characteristics of these Switches were measured with the roller lever set at 32 mm. 3. Only for snap-action models. 4. Reference value. 5. For safe use, always make sure that the minimum values or greater are provided. Slow-action (1NC/1NO) (2NC/1NO) Model D4N-@A2H D4N-@C2H D4N-@E2H D4N-@F2H OF max. 4.5 N RF min. 0.4 N PT (See note 2.) 18° to 27° PT (2nd) (See note 3.) (44°) PT (See note 4.) 27.5° to 36.5° PT (2nd) (See note 5.) (18°) OT min. 40° OP --- TT (See note 6.) (80°) DOT min. 50° DOF min. (See note 7.) 20 N D4N-@A2G D4N-@C2G D4N-@E2G D4N-@F2G (See note 1.) 1-conduit M12 Connector D4N-9@@@ (14) M12 × 1 14.2 30 262 Safety Limit Switch D4N Note: 1. The operating characteristics of these Switches were measured with the roller lever set at 32 mm. 2. This PT value is possible when the NC contacts are open (OFF). 3. This PT value is possible when the NO contacts are closed (ON). 4. Only for MBB models. 5. Reference value for MBB models only. 6. Reference value. 7. For safe use, always make sure that the minimum values or greater are provided. 1-conduit Models Fork Lever Lock (Left Operation) D4N-1@LE D4N-2@LE D4N-3@LE D4N-4@LE Fork Lever Lock (Right Operation) D4N-1@RE D4N-2@RE D4N-3@RE D4N-4@RE Two, 17.5 dia. × 8 rubber rollers 47 max. 39.3±1 47 max. 39.3±1 (27.2) 90° 90° 11±0.2 11±0.2 26R Two, 17.5 dia. × 8 rubber rollers (27.2) 26R 20.5 × 20.5 20.5 × 20.5 27.5 9±0.2 55 21.5 21.5 2.5 20±0.1 22±0.1 47±0.2 Cat Whisker D4N-1@80 D4N-3@80 2.15±0.05R mounting holes 2.15±0.05R mounting holes 22±0.2 Conduit cap 31 max. 14.2 30 +0.15 0 Two, 4 dia. holes Depth: 5 20.5 × 20.5 Two, 4+0.15 dia. holes 14.2 0 30 Depth: 5 Plastic Rod D4N-1@87 D4N-3@87 D4N-2@80 D4N-4@80 PT 1.2-dia. stainless steel wire (See note 2.) 42 47±0.2 20.5 × 20.5 21.5 47±0.2 20±0.1 22±0.1 22±0.2 31 max. 14.2 Two, 4+0.15 dia. holes 0 30 Depth: 5 11±0.2 9±0.2 2.5 (31.5) 22±0.2 31 max. Sealing cap 12±0.2 2.15±0.05R mounting holes Conduit cap 55 PT 16.6 dia. 55 22±0.2 31 max. 47±0.2 16.6 dia. 9±0.2 55 2.5 Resin rod (See note 2.) 21.5 11±0.2 20±0.1 22±0.1 20±0.1 22±0.1 D4N-2@87 D4N-4@87 115 Sealing cap 2.5 Conduit cap 38 143.1 (50.1) 18 9±0.2 27.5 18 2.15±0.05R mounting holes Conduit cap 14.2 30 (31.5) Two, 4+0.15 dia. holes 0 Depth: 5 Note: 1. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 2. The usable range for stainless steel wires and resin rods is 35 mm max. from the end with a total travel of 70 mm max. Slow-action (1NC/1NO) (2NC/1NO) (2NC) (3NC) Model D4N-@@RE D4N-@@LE Force necessary to reverse the direction of the lever: max. 6.4 N 6.4 N Movement until the lever reverses 55 ±10° 55 ±10° Movement until switch operation (NC) 6.5° (MBB: 10°) 6.5° (MBB: 10°) Movement until switch operation (NO) 18.5° (MBB: 5°) 18.5° (MBB: 5°) Note: Variation occurs in the simultaneity of contact opening/closing operations of 2NC, 2NC/1NO, and 3NC contacts. Check contact operation. Snap-action (1NC/1NO) (2NC), Slow-action (2NC) (3NC) Model D4N-@@80 D4N-@@87 OF max. 1.5 N 1.5 N PT max. 15° 15° Safety Limit Switch D4N 263 2-conduit Models Roller Lever (Resin Lever, Resin Roller) D4N-5@20 17.5 dia. × 6.8 D4N-6@20 resin roller D4N-8@20 26R (27) 11±0.2 Resin lever 18 20.5 × 20.5 5.4 2.5 20±0.1 22±0.1 40±0.1 42±0.1 25 dia. 18 20.5 (3) Conduit cap 6-dia. resin plunger OP 2.15±0.05R mounting holes Conduit cap 20±0.1 22±0.1 40±0.1 42±0.1 (31.5) 21.5 11±0.2 42±0.2 56 max. (3) 20.5 × 20.5 14.2 30 (31.5) 21.5 11±0.2 9.5 dia. × 5 resin roller OP 25.2 2.5 9±0.2 5.4 9±0.2 20.5 2.15±0.05R mounting holes Cap Conduit cap 39±0.2 25 dia. 42±0.2 56 max. 47 Cap 2.5 20±0.1 22±0.1 40±0.1 42±0.1 20.5 39±0.2 25 dia. Two, 4+0.15 dia. holes 0 Depth: 5 Roller Plunger D4N-5@32 D4N-6@32 D4N-8@32 Two, 3±0.05 dia. holes 27.5 21.5 9±0.2 2.15±0.05R mounting holes 14.2 30 25±0.1 5.4 2.5 47 Cap 12 dia. 11±0.2 20.5 × 20.5 5.4 dia. holes Two, 4+0.15 0 Depth: 5 Plunger D4N-5@31 D4N-6@31 D4N-8@31 (31) 27.5 39±0.2 42±0.2 56 max. 45±1 39.5±1 26R Metal lever 21.5 9±0.2 2.15±0.05R mounting holes Conduit cap Roller Lever (Metal Lever, Resin Roller) D4N-5@22 D4N-6@22 17.5 dia. × 6.8 D4N-8@22 resin roller 47±1 40±1 47 (3) 20±0.1 22±0.1 40±0.1 42±0.1 20.5 39±0.2 25 dia. 47 Cap 42±0.2 56 max. (3) 14.2 30 14.2 30 Two, 4+0.15 dia. holes 0 Depth: 5 Two, 4+0.15 dia. holes 0 Depth: 5 Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. Snap-action (1NC/1NO) (2NC), Slow-action (2NC) (3NC) Model D4N-@120 D4N-@220 D4N-@B20 D4N-@D20 D4N-@122 D4N-@222 D4N-@B22 D4N-@D22 D4N-@131 D4N-@231 D4N-@B31 D4N-@D31 D4N-@132 D4N-@232 D4N-@B32 D4N-@D32 Slow-action (1NC/1NO) (2NC/1NO) Model D4N-@A20 D4N-@C20 D4N-@E20 D4N-@F20 D4N-@A22 D4N-@C22 D4N-@E22 D4N-@F22 D4N-@A31 D4N-@C31 D4N-@E31 D4N-@F31 D4N-@A32 D4N-@C32 D4N-@E32 D4N-@F32 OF max. 5N 5N 6.5 N OF max. 5N 5N 6.5 N 6.5 N RF min. 0.5 N 0.5 N 1.5 N 6.5 N 1.5 N RF min. 0.5 N 0.5 N 1.5 N 1.5 N PT (See note 1.) 18° to 27° 18° to 27° 2 mm 2 mm PT (2nd) (See note 2.) (44°) (44 °) (2.9 mm) (2.9 mm) PT 18° to 27° 18° to 27° 2 mm 2 mm OT min. 40° 40° 4 mm 4 mm MD max. (See note 2.) 14° 14° 1 mm 1 mm PT (See note 3.) 27.5° to 36.5° 27.5° to 36.5° 2.8 mm 2.8 mm OP --- --- 18 ±0.5 mm 28.2 ±0.8 mm PT (2nd) (See note 4.) (18°) (1 mm) TT (See note 3.) (80°) (80°) (6 mm) (6 mm) DOT min. (See note 4.) 50° 50° 3.2 mm 3.2 mm DOF min. (See note 4.) 20 N 20 N 20 N 20 N Note: 1. Variation occurs in the simultaneity of contact opening/closing operations of 2NC, 2NC/1NO, and 3NC contacts. Check contact operation. 2. Only for snap-action models. 3. Reference value. 4. For safe use, always make sure that the minimum values or greater are provided. 264 Safety Limit Switch D4N (18 °) (1 mm) OT min. 40° 40° 4 mm 4 mm OP --- --- 18 ±0.5 mm 28.2 ±0.8 mm OP (See note 5.) --- --- 17.4 ±0.5 mm 28 ±0.8 mm TT (See note 6.) (80°) (80 °) (6 mm) (6 mm) DOT min. (See note 7.) 50° 50° 3.2 mm 3.2 mm DOF min. (See note 7.) 20 N 20 N 20 N 20 N Note: 1. 2. 3. 4. 5. 6. 7. This PT value is possible when the NC contacts are open (OFF). This PT value is possible when the NO contacts are closed (ON). Only for MBB models. Reference value for MBB models. Only for MBB models. Reference value. For safe use, always make sure that the minimum values or greater are provided. 2-conduit Models One-way Roller Arm Lever Operating direction (Horizontal) 14.8 D4N-5@62 12 dia. x 5 D4N-6@62 ±0.2 11 resin roller D4N-8@62 13.5 OP 2.15±0.05R mounting holes 21.5 11±0.2 20R 23.3 5.4 19.5±0.2 One-way Roller Arm Lever (Vertical) D4N-5@72 D4N-6@72 OP D4N-8@72 12 11±0.2 (31.5) 47 20±0.1 22±0.1 40±0.1 42±0.1 Cap (3) 2.15±0.05R mounting holes Conduit cap 14.2 30 Two, 4+0.15 dia. holes 0 Depth: 5 Adjustable Roller Lever, Form Lock (with Metal Lever, Resin Roller) D4N-6@2G 17.5 dia. × 6.8 resin roller D4N-8@2G 18 19.5±0.2 9±0.2 20.5 39±0.2 Conduit cap Resin lever 2.15±0.05R mounting holes 14.7 2.5 10.2 5.4 25 dia. 19R 21.5 9±0.2 42±0.2 56 max. 21.5 11±0.2 12 dia. × 5 resin roller 10.2 2.5 20±0.1 22±0.1 40±0.1 42±0.1 (31.5) 11±0.2 20 to 66R 25 dia. 20.5 47 Cap 42±0.2 56 max. Operating direction (3) 14.2 30 Two, 4+0.15 dia. holes 0 Depth: 5 Adjustable Roller Lever, Form Lock (with Metal Lever, Rubber Roller) D4N-6@2H 50 dia. × 8 rubber roller D4N-8@2H Bearing 45±1 39.5±1 (31) 21.5 39±0.2 48.2±1 41.3±1 (29.2) 20.5 × 20.5 5.4 2.5 27.5 21.5 9±0.2 25 dia. 18 20.5 39±0.2 20±0.1 22±0.1 40±0.1 42±0.1 11±0.2 47 Conduit cap (3) 5.4 14.2 30 20.5 × 20.5 2.5 27.5 21.5 9±0.2 20.5 39±0.2 20±0.1 22±0.1 40±0.1 42±0.1 Cap 42±0.2 56 max. 32 to 66R Stainless steel lever 2.15±0.05R mounting holes 25 dia. 47 Cap Conduit cap 42±0.2 56 max. Two, 4+0.15 dia. holes 0 Depth: 5 (3) 14.2 30 Two, 4+0.15 dia. holes 0 Depth: 5 Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. Snap-action (1NC/1NO) (2NC), Slow-action (2NC) (3NC) Model OF max. D4N-@162 D4N-@262 D4N-@B62 D4N-@D62 5.0 N D4N-@172 D4N-@272 D4N-@B72 D4N-@D72 5.0 N Slow-action (1NC/1NO) (2NC/1NO) Model D4N-@A62 D4N-@C62 D4N-@E62 D4N-@F62 D4N-@A2G D4N-@C2G D4N-@E2G D4N-@F2G (See note 1.) D4N-@A2H D4N-@C2H D4N-@E2H D4N-@F2H (See note 2.) 5.0 N 4.5 N 4.5 N 0.8 N 0.4 N 0.4 N 4 mm 4 mm 18° to 27° 18° to 27° PT (2nd) (See note 4.) (5.2 mm) (4.3 mm) (44°) (44°) D4N-@12G D4N-@22G D4N-@B2G D4N-@D2G (See note 2.) D4N-@12H D4N-@22H D4N-@B2H D4N-@D2H (See note 3.) OF max. 5.0 N 4.5 N 4.5 N RF min. 0.8 N PT max. (See note 3.) D4N-@A72 D4N-@C72 D4N-@E72 D4N-@F72 RF min. 0.8 N 0.8 N 0.4 N 0.4 N PT max. 4 mm 4 mm 18° to 27° 18° to 27° OT min. 5 mm 5 mm 40° 40° MD max. (See note 4.) 1.5 mm 1.5 mm 14° 14° PT max. (See note 5.) 4 mm 4 mm 27.5° to 36.5° 27.5° to 36.5° OP 37 ±0.8 mm 27 ±0.8 mm --- --- (1.5 mm) (18°) (18°) (9 mm) (9 mm) (70°) (70°) PT (2nd) (See note 6.) (1.5 mm) TT (See note 5.) OT min. 5 mm 5 mm 40° 40° DOT min. (See note 6.) 5.8 mm 4.8 mm 50° 50° OP 37 ±0.8 mm 27 ±0.8 mm --- --- 20 N 26.1 ±0.8 mm --- 20 N 36 ±0.8 mm --- DOF min. (See note 6.) OP (See note 7.) TT (See note 8.) (9 mm) (9 mm) (70°) (70°) DOT min. (See note 9.) 5.8 mm 4.8 mm 50° 50° DOF min. (See note 9.) 20 N 20 N 20 N 20 N 20 N 20 N Note: 1. Variation occurs in the simultaneity of contact opening/closing operations of 2NC, 2NC/1NO, and 3NC contacts. Check contact operation. 2. The operating characteristics of these Switches were measured with the roller lever set at 30 mm. 3. The operating characteristics of these Switches were measured with the roller lever set at 31 mm. 4. Only for snap-action models. 5. Reference value. 6. For safe use, always make sure that the minimum values or greater are provided. Note: 1. The operating characteristics of these Switches were measured with the roller lever set at 30 mm. 2. The operating characteristics of these Switches were measured with the roller lever set at 31 mm. 3. This PT value is possible when the NC contacts are open (OFF). 4. This PT value is possible when the NO contacts are closed (ON). 5. Only for MBB models. 6. Reference value for MBB models only. 7. Only for MBB models. 8. Reference value. 9. For safe use, always make sure that the minimum values or greater are provided. Safety Limit Switch D4N 265 2-conduit Models Fork Lever Lock (Right Operation) D4N-5@RE D4N-6@RE D4N-7@RE D4N-8@RE Fork Lever Lock (Left Operation) D4N-5@LE D4N-6@LE D4N-7@LE D4N-8@LE 47 max. 39.3±1 Two, 17.5 dia. × 8 rubber rollers (27.2) 90° 11±0.2 Two, 17.5 dia. × 8 rubber rollers 20.5 × 20.5 (27.2) 90° 27.5 11±0.2 26R 21.5 20.5 × 20.5 18 5.4 2.5 20±0.1 22±0.1 40±0.1 42±0.1 20.5 27.5 9±0.2 2.15±0.05R mounting holes 26R 47 max. 39.3±1 5.4 2.5 9±0.2 20±0.1 22±0.1 40±0.1 42±0.1 2.15±0.05R mounting holes Conduit cap 21.5 20.5 39±0.2 25 dia. 18 Two, 4+0.15 dia. holes 0 Depth: 5 47 39±0.2 25 dia. 42±0.2 56 max. 14.2 30 (3) 47 Cap Cap Conduit cap 42±0.2 56 max. (3) 14.2 Two, 4+0.15 dia. holes 30 0 Depth: 5 Cat Whisker D4N-5@80 D4N-7@80 Plastic Rod D4N-5@87 D4N-7@87 D4N-6@80 D4N-8@80 1.2-dia. stainless steel wire (See note 2.) PT 20.5 × 20.5 5.4 16.6 dia. 11±0.2 2.5 20±0.1 22±0.1 40±0.1 42±0.1 5.4 20.5 2.15±0.05R mounting holes Cap Conduit cap (3) 14.2 30 21.5 115 16.6 dia. Sealing cap 11±0.2 2.5 12±0.2 39±0.2 25 dia. 47 42±0.2 56 max. Resin rod (See note 2.) 21.5 9±0.2 2.15±0.05R mounting holes PT 38 42 143.1 (50.1) Sealing cap D4N-6@87 D4N-8@87 9±0.2 20±0.1 22±0.1 40±0.1 42±0.1 20.5 39±0.2 25 dia. 47 Cap 42±0.2 56 max. (3) (31.5) 14.2 30 (31.5) Two, 4+0.15 dia. holes 0 Depth: 5 Two, 4+0.15 dia. holes 0 Depth: 5 Conduit cap Note: 1. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 2. The usable range for stainless steel wires and resin rods is 35 mm max. from the end with a total travel of 70 mm max. Slow-action (1NC/1NO) (2NC), Slow-action (2NC) (3NC) Model D4N-@@RE D4N-@@LE Force necessary to reverse the direction of the lever: max. 6.4 N 6.4 N Movement until the lever reverses 55 ±10° 55 ±10° Movement until switch operation (6.5°) (NC) (6.5°) (MBB: 10°) Movement until switch operation (18.5°) (NO) (18.5°) (MBB: 5°) Snap-action (1NC/1NO), Slow-action (2NC) (3NC) Model D4N-@@80 D4N-@@87 OF max. 1.5 N 1.5 N PT max. 15° 15° 266 Safety Limit Switch D4N Note: Variation occurs in the simultaneity of contact opening/closing operations of 2NC, 2NC/1NO, and 3NC contacts. Check contact operation. ■ Levers Refer to the following for the angles and positions of the watchdogs (source: EN50047.) Roller Lever (D4N-@@20) Adjustable Roller Lever, Form Lock (with Metal Lever, Resin Roller) (D4N-@@2G) (Reference Values) Adjustable Roller Lever, Form Lock (with Metal Lever, Rubber Roller) (D4N-@@2H) (Reference Values) 30±7 40±2 10 min. 40±2 Dog 30° 29±7 Dog 10 min. 15±3 42±2 11±3 45 min. 10 min. 30° Dog 40 min. 5±2 20 min. 30° 25 min. 110 55 5 min. 40+10 15 min. 90 30° 70+10 45 35+10 50 65R 31R 65R 20R Sealed Plunger (D4N-@@31) 75 55+10 55+10 Roller Plunger (D4N-@@32) 0 12.5 −2.5 10±1.5 0 12.5 −2.5 Dog Dog Operating position 15 min. 18±0.5 21 min. 35 25+10 One-way Roller Arm Lever (Horizontal) (D4N-@@62) Operating position 2.5 20 min. 30° Dog 25 min. 28±1 10 min. 31 min. One-way Roller Arm Lever (Vertical) (Reference Values) (D4N-@@72) 0 12.5 −2.5 0 12.5 −2.5 10±2 Dog 31 10 min. 5 min. 20 min. 30° 30° Dog 5 min. 40 31+10 41±2 10 min. 30 max. 22+10 20 min. Fork Lever Lock (Right Operation) (D4N-@@RE) Fork Lever Lock (Left Operation) (D4N-@@LE) 40 40 Mounting surface 55° to 60° 60 5 to 9R 28 36 Mounting surface 55° to 60° 60 36 28 Dog setting range 5 to 9R Dog setting range Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. Safety Limit Switch D4N 267 Safety Precautions Refer to the “Precautions for All Safety Switches” on page 240 and “Precautions for All Safety Limit Switches” on page 247. • Locations where the interior of the Protective Door may come into direct contact with cutting chips, metal filings, oil, or chemicals !CAUTION Do not use metal connectors or conduits. If the Switch is made of resin, damage at the conduit section may cause electric shock. ■ Precautions for Safe Use • Locations where the Switch may come into contact with thinner or detergents Mounting Method • Do not drop the Switch. Doing so may result in the Switch not performing to its full capacity. • Do not attempt to disassemble or modify the Switch. Doing so may cause the Switch to malfunction. • Do not use the Switch where explosive gas or flammable gas may be present. • Do not use the Switch submerged in oil or water, or in locations continuously subject to splashes of oil or water. Doing so may result in oil or water entering the Switch interior. (The IP67 degree of protection specification for the Switch refers to water penetration while the Switch is submersed in water for a specified period of time.) • Protect the head from foreign material. Subjecting the head to foreign material may result in premature wear or damage to the Switch. Although the switch body is protected from penetration by dust or water, the head is not protected from penetration by minute particles or water. • Turn the power OFF before wiring. Not doing so may result in electric shock. • Install the cover after wiring. Not doing so may result in electric shock. • Connect a fuse to the Switch in series to protect the Switch from short-circuit damage. Use a fuse with a breaking current 1.5 to 2 times larger than the rated current. To conform to EN ratings, use an IEC60269-compliant 10-A fuse type gI or gG. • Do not switch circuits for two or more standard loads (250 VAC, 3 A) at the same time. Doing so may adversely affect insulation performance. • The durability of the Switch is greatly affected by operating conditions. Evaluate the Switch under actual working conditions before permanent installation and use within a number of switching operations that will not adversely affect the Switch’s performance. • Be sure to indicate in the machine manufacturer’s instruction manual that the user must not attempt to repair or maintain the Switch and must contact the machine manufacturer for any repairs or maintenance. • Check the Switches before use and inspect regularly, replacing them when necessary. If a Switch is kept pressed for an extended period of time, the components may deteriorate quickly, and the Switch may not release. Mounting Screw Tightening Torque ■ Precautions for Correct Use Switch Mounting Holes Tighten each of the screws to the specified torque. Loose screws may result in malfunction of the Switch within a short time. 1 Terminal screw 0.6 to 0.8 N·m 2 Cover clamping screw 0.5 to 0.7 N·m 3 Head clamping screw 0.5 to 0.6 N·m 4 Lever clamping screw 1.6 to 1.8 N·m 5 Body clamping screw 0.5 to 0.7 N·m 6 Conduit mounting connection, M12 adaptor 1.8 to 2.2 N·m (except 1/214NPT) 7 Cap screw 1.4 to 1.8 N·m (1/2-14NPT) 1.3 to 1.7 N·m 3 4 5 1 7 6 2 Switch Mounting • Mount the Switch using M4 screws and washers and tighten the screws to the specified torque. • For safety, use screws that cannot be easily removed, or use an equivalent measure to ensure that the Switch is secure. • Secure the Switch with two M4 bolts and washers. Provide studs with a diameter of 4 −−0.05 0.15 and a height of 4.8 mm max. at two places, inserting into the holes at the bottom of the Switch as shown below so that the Switch is firmly fixed at four points. One-conduit Type Environment • The Switch is intended for indoor use only. • Do not use the Switch outdoors. Doing so may cause the Switch to malfunction. • Do not use the Switch where corrosive gases (e.g., H2S, SO2, NH3, HNO3, CI2) are present or in locations subject to high temperature and humidity. Doing so may result in damage to the Switch caused by contact failure or corrosion. • Do not use the Switches in the following locations. • Locations subject to severe temperature changes • Locations subject to high temperatures or condensation • Locations subject to severe vibration 268 Safety Limit Switch D4N 2.5±0.1 Two, M4 Two-conduit Type 2.5±0.1 Two, M4 5.35±0.1 20±0.1 22±0.1 39±0.1 47±0.1 20±0.1 22±0.1 40±0.1 42±0.1 42±0.1 22±0.1 4−0.05 −0.15 dia. Height: 4.8 max. 4−0.05 −0.15 dia. Height: 4.8 max. • Make sure that the dog contacts the actuator at a right angle. Applying a load to the switch actuator (roller) on a slant may result in deformation or damage of the actuator or rotary shaft. Contact Arrangement • The following diagrams show the contact arrangements used for screw terminal types and connector types. Screw Terminal Type Dog Dog D4N-@C@@ (2NC/1NO) D4N-@F@@ (2NC/1NO (MBB)) D4N-@D@@ (3NC) Incorrect Correct Wiring • When connecting to the terminals via insulating tube and M3.5 crimp terminals, arrange the crimp terminals as shown below so that they do not rise up onto the case or the cover. Applicable lead wire size: AWG20 to AWG18 (0.5 to 0.75 mm2). Use lead wires of an appropriate length, as shown below. Not doing so may result in excess length causing the cover to rise and not fit properly. 11 12 11 21 22 21 22 31 32 33 34 D4N-@B@@ (2NC) D4N-@2@@ (2NC (SNAP)) 12 11 12 31 32 33 34 D4N-@1@@ (1NC/1NO (SNAP)) AB B 11 12 C 21 22 D E 33 34 F 42 mm 33 mm 28 mm Left hand Right hand ECA 21 22 33 34 12 (2) (1) 11 12 (2) 32 (4) (3) 33 34 (4) D4N-91@@ (1NC/1NO (SNAP)) 1 2 D 42 mm 28 mm F 28 mm D4N-9A@@ (1NC/1NO) D4N-9E@@ (1NC/1NO (MBB)) (3) 31 BD F ECA 42 mm E 32 (1) 11 B BD F C 31 Connector Type D4N-9B@@ (2NC) D4N-92@@ (2NC (SNAP)) Two-conduit Type (3 Poles) 11 12 14 F Tolerance ±2 mm A 13 D E C D4N-@A@@ (1NC/1NO) D4N-@E@@ (1NC/1NO (MBB)) 11 One-conduit Type (3 Poles) A 12 4 (3) 13 14 (4) (1) 31 32 (2) 3 Pin No. (Terminal No.) Tolerance ±2 mm Tolerance ±2 mm • Do not push crimp terminals into gaps in the case interior. Doing so may cause damage or deformation of the case. • Use crimp terminals not more than 0.5 mm in thickness. Otherwise, they will interfere with other components inside the case. The crimp terminals shown below are not more than 0.5 mm thick. Manufacture J.S.T. Type FV0.5-3.7 (F type) V0.5-3.7 (straight type) J.S.T. is a Japanese manufacturer. 0.5 mm 3.7 mm 2.9 mm 6.6 mm 19 mm D dia. 7.7 mm 8.0 mm l F B dz dia. Crimp terminal Socket Tightening (Connector Type) • Turn the socket connector screws by hand and tighten until no space remains between the socket and the plug. • Make sure that the socket connector is tightened securely. Otherwise, the rated degree of protection (IP67) may not be maintained and vibration may loosen the socket connector. Conduit Opening L t: dz dia.: D dia.: B: L: F: I: • Applicable socket: XS2F (OMRON). • Refer to the Connector Catalog for details on socket pin numbers and lead wire colors. Terminal screw • Connect a recommended connector to the opening of the conduit and tighten the connector to the specified torque. The case may be damaged if an excessive tightening torque is applied. • When using 1/2-14NPT, wind sealing tape around the joint between the connector and conduit opening so that the enclosure will conform to IP67. • Use a cable with a suitable diameter for the connector. • Attach and tighten a conduit cap to the unused conduit opening when wiring. Tighten the conduit cap to the specified torque. The conduit cap is provided with the Switch (2-conduit types). Changing the Lever Correct Incorrect The lever mounting screws can be used to set the lever position to any position in a 360° angle at 7.5° increments. Grooves are incised on the lever and rotary shaft that engage to prevent the lever from slipping against the rotary shaft. The screws on adjustable roller lever models can also loosened to change the length of the lever. Remove the screws from the front of the lever before mounting the lever in reverse (front/back), and set the level so that operation will be completed before exceeding a range of 180° on the horizontal. Safety Limit Switch D4N 269 Recommended Connectors Storage Use connectors with screws not exceeding 9 mm, otherwise the screws will protrude into the case interior, interfering with other components in the case. The connectors listed in the following table have connectors with thread sections not exceeding 9 mm. Use the recommended connectors to ensure conformance to IP67. Do not store the Switch in locations where corrosive gases (e.g., H2S, SO2, NH3, HNO3, Cl2) or dust is present, or in locations subject to high temperatures and humidity. Size Manufacturer Model Applicable cable diameter G1/2 LAPP ST-PF1/2 5380-1002 6.0 to 12.0 mm Pg13.5 LAPP ST-13.5 5301-5030 6.0 to 12.0 mm M20 LAPP ST-M20 × 1.5 5311-1020 7.0 to 13.0 mm 1/2-14NPT LAPP ST-NPT1/2 5301-6030 6.0 to 12.0 mm Use LAPP connectors together with seal packing (JPK-16, GP-13.5, GPM20, or GPM12), and tighten to the specified tightening torque. Seal packing is sold separately. LAPP is a German manufacturer. Before using a 2-conduit 1/2-14NPT type, attach the provided changing adaptor to the Switch and then connect the recommended connector. Production Discontinuation Following the release of the D4N, production of the D4D-N will be discontinued. Date of Production Discontinuation Production of the D4D-N Series will be discontinued as of the end of March 2006. Product Replacement 1. Dimensions The D4D-N and D4N use the same mounting method, and mounting hole. The multi-contact structure and the extra 4 mm in length, however, are different. 2. Terminal Numbers For the 2-contact slow-action model, the terminals 21, 22, 23, and 24 on the D4D-N are 31, 32, 33, and 34 on the D4N. 3. Recommended Terminals If the recommended terminals are not used, the Switch may not be compatible. Make sure that the Switch is compatible with the terminals. Comparison of the D4D-N and Substitute Products Model D4N Switch color Very similar Dimensions Very similar Wiring/connection Significantly different Mounting method Completely compatible Ratings/performance Very similar Operating characteristics Very similar Operating method Completely compatible 270 Safety Limit Switch D4N Others • Do not allow the load current to exceed the rated value. • Confirm that the seal rubber has no defects before use. If the seal rubber is displaced or raised, or has foreign particles adhered to it, the sealing capability of the seal rubber will be adversely affected. • Use the correct cover mounting screws only, or the sealing capability of the seal rubber will deteriorate. • Inspect the Switch regularly. • Make sure that foreign particles do not enter the head when removing the screws from the four corners to change the head position in any of the four directions. • Use the following recommended countermeasures to prevent telegraphing when using adjustable or long levers. 1. Make the rear edge of the dog smooth with an angle of 15° to 30° or make it in the shape of a quadratic curve. 2. Design the circuit so that no error signal will be generated. 3. Use or set a Switch that is operated in one direction only. Dimensions (Unit: mm) Discontinued Models (1-conduit Plunger-type D4D-N) Replacement Products (1-conduit Plunger-type D4N) 25 dia. ±0.1 25±0.1 Two, 3 ±0.05 dia. holes Two, 3 ±0.05 dia. holes 12 dia. 12 dia. 6-dia. resin plunger 6-dia. resin plunger OP OP 9±0.2 2.5 2.15±0.05R mounting holes 55 47±0.2 Two, 4+0.15 dia. holes 0 depth: 5 31 max. Discontinued Models (2-conduit Plunger-type D4D-N) (31.5) 21.5 11±0.2 20±0.1 22±0.1 2.15±0.05R mounting holes 22±0.2 31 max. Conduit cap 14.2 30 Two, 4+0.15 dia. holes 0 depth: 5 Replacement Products (2-conduit Plunger-type D4N) 25±0.1 Two, 3 ±0.05 dia. holes depth: 6 Two, 3 ±0.05 dia. holes 12 dia. 12 dia. 6 dia. 6-dia. resin plunger OP OP 2.15±0.05R mounting holes 25 dia. 2.15±0.05R mounting holes Cap 56 max. 5.4 Two, 4+0.15 dia. holes 0 depth: 5 (31.5) 21.5 11±0.2 2.5 9±0.2 20±0.1 22±0.1 40±0.1 42±0.1 39±0.2 25 dia. 47 Conduit cap 20.5 Cap 42±0.2 56 max. (3) 14.2 Two, 4+0.15 dia. holes 30 0 depth: 5 Safety Limit Switch D4N 271 List of Recommended Substitute Products : The actuator on the D4D-N is a non-safety type. The D4N is recommended for safety applications (form lock type). Be sure to mount it correctly. : M screws are recommended to comply with European standards. Therefore, the M20 type is recommended as a substitute when the Pg13.5 conduit-type is not available in a D4N model. Safety Limit Switches D4D-N product to be discontinued Recommended substitute product D4D-N product to be discontinued Recommended substitute product D4D-N product to be discontinued Recommended substitute product D4D-1120N D4N-1120 D4D-1520N D4N-1A20 D4D-1A20N D4N-1B20 D4D-2120N D4N-2120 D4D-2520N D4N-2A20 D4D-2A20N D4N-2B20 D4D-3120N D4N-3120 D4D-3520N D4N-3A20 D4D-3A20N D4N-3B20 D4D-5120N D4N-5120 D4D-5520N D4N-5A20 D4D-5A20N D4N-5B20 D4D-6120N D4N-6120 D4D-6520N D4N-6A20 D4D-6A20N D4N-6B20 D4D-1122N D4N-1122 D4D-1522N D4N-1A22 D4D-1A22N D4N-1B22 D4D-2122N D4N-2122 D4D-2522N D4N-2A22 D4D-2A22N D4N-2B22 D4D-3122N D4N-3122 D4D-3522N D4N-3A22 D4D-3A22N D4N-3B22 D4D-5122N D4N-5122 D4D-5522N D4N-5A22 D4D-5A22N D4N-5B22 D4D-6122N D4N-6122 D4D-6522N D4N-6A22 D4D-6A22N D4N-6B22 D4D-1125N D4N-1125 D4D-1525N D4N-1A25 D4D-1A25N D4N-1B25 D4D-2125N D4N-2125 D4D-2525N D4N-2A25 D4D-2A25N D4N-2B25 D4D-3125N D4N-3125 D4D-3525N D4N-3A25 D4D-3A25N D4N-3B25 D4D-1131N D4N-1131 D4D-1531N D4N-1A31 D4D-1A31N D4N-1B31 D4D-2131N D4N-2131 D4D-2531N D4N-2A31 D4D-2A31N D4N-2B31 D4D-3131N D4N-3131 D4D-3531N D4N-3A31 D4D-3A31N D4N-3B31 D4D-5131N D4N-5131 D4D-5531N D4N-5A31 D4D-5A31N D4N-5B31 D4D-6131N D4N-6131 D4D-6531N D4N-6A31 D4D-6A31N D4N-6B31 D4D-1132N D4N-1132 D4D-1532N D4N-1A32 D4D-1A32N D4N-1B32 D4D-2132N D4N-2132 D4D-2532N D4N-2A32 D4D-2A32N D4N-2B32 D4D-3132N D4N-3132 D4D-3532N D4N-3A32 D4D-3A32N D4N-3B32 D4D-5132N D4N-5132 D4D-5532N D4N-5A32 D4D-5A32N D4N-5B32 D4D-6132N D4N-6132 D4D-6532N D4N-6A32 D4D-6A32N D4N-6B32 D4D-1162N D4N-1162 D4D-1562N D4N-1A62 D4D-1A62N D4N-1B62 D4D-2162N D4N-2162 D4D-2562N D4N-2A62 D4D-2A62N D4N-2B62 D4D-3162N D4N-3162 D4D-3562N D4N-3A62 D4D-3A62N D4N-3B62 D4D-5162N D4N-5162 D4D-5562N D4N-5A62 D4D-5A62N D4N-5B62 D4D-6162N D4N-6162 D4D-6562N D4N-6A62 D4D-6A62N D4N-6B62 D4D-1172N D4N-1172 D4D-1572N D4N-1A72 D4D-1A72N D4N-1B72 D4D-2172N D4N-2172 D4D-2572N D4N-2A72 D4D-2A72N D4N-2B72 D4D-3172N D4N-3172 D4D-3572N D4N-3A72 D4D-3A72N D4N-3B72 D4D-5172N D4N-5172 D4D-5572N D4N-5A72 D4D-5A72N D4N-5B72 D4D-6172N D4N-6172 D4D-6572N D4N-6A72 D4D-6A72N D4N-6B72 D4D-112HN D4N-112H D4D-152HN D4N-1A2H D4D-1A2HN D4N-1B2H D4D-212HN D4N-212H D4D-252HN D4N-2A2H D4D-2A2HN D4N-2B2H D4D-312HN D4N-312H D4D-352HN D4N-3A2H D4D-3A2HN D4N-3B2H 272 Safety Limit Switch D4N General-purpose Limit Switches D4D-N product to be discontinued Recommended substitute product D4D-N product to be discontinued Recommended substitute product D4D-N product to be discontinued Recommended substitute product D4D-1121N D4N-112G D4D-15REN D4N-1ARE D4D-1AREN D4N-1BRE D4D-2121N D4N-212G D4D-25REN D4N-2ARE D4D-2AREN D4N-2BRE D4D-3121N D4N-312G D4D-35REN D4N-3ARE D4D-3AREN D4N-3BRE D4D-5121N D4N-512G D4D-55REN D4N-5ARE D4D-5AREN D4N-5BRE D4D-6121N D4N-612G D4D-65REN D4N-6ARE D4D-6AREN D4N-6BRE D4D-1127N D4N-112H D4D-15LEN D4N-1ALE D4D-1ALEN D4N-1BLE D4D-2127N D4N-212H D4D-25LEN D4N-2ALE D4D-2ALEN D4N-2BLE D4D-3127N D4N-312H D4D-35LEN D4N-3ALE D4D-3ALEN D4N-3BLE D4D-5127N D4N-512H D4D-55LEN D4N-5ALE D4D-5ALEN D4N-5BLE D4D-6127N D4N-612H D4D-65LEN D4N-6ALE D4D-6ALEN D4N-6BLE D4D-1180N D4N-4180 D4D-1521N D4N-1A2G D4D-1A21N D4N-1B2G D4D-2180N D4N-2180 D4D-2521N D4N-2A2G D4D-2A21N D4N-2B2G D4D-3180N D4N-3180 D4D-3521N D4N-3A2G D4D-3A21N D4N-3B2G D4D-5180N D4N-8180 D4D-5521N D4N-5A2G D4D-5A21N D4N-5B2G D4D-6180N D4N-6180 D4D-6521N D4N-6A2G D4D-6A21N D4N-6B2G D4D-1187N D4N-4187 D4D-1527N D4N-1A2H D4D-1A27N D4N-1B2H D4D-2187N D4N-2187 D4D-2527N D4N-2A2H D4D-2A27N D4N-2B2H D4D-3187N D4N-3187 D4D-3527N D4N-3A2H D4D-3A27N D4N-3B2H D4D-5187N D4N-8187 D4D-5527N D4N-5A2H D4D-5A27N D4N-5B2H D4D-6187N D4N-6187 D4D-6527N D4N-6A2H D4D-6A27N D4N-6B2H D4D-1A80N D4N-4B80 D4D-2A80N D4N-2B80 D4D-3A80N D4N-3B80 D4D-5A80N D4N-8B80 D4D-6A80N D4N-6B80 D4D-1A87N D4N-4B87 D4D-2A87N D4N-2B87 D4D-3A87N D4N-3B87 D4D-5A87N D4N-8B87 D4D-6A87N D4N-6B87 ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. C130-E1-04 In the interest of product improvement, specifications are subject to change without notice. Safety Limit Switch D4N 273