MML21HR3BAN

Manual Switches Electronic Control Pushbutton MML21 Series LED, INCANDESCENT, OR NON-LIGHTED DISPLAY PWB Mount (Standard plunger) Panel Mount (Standard plunger) FEATURES 1 Silver or gold contacts 1 Choice of rectangular or square housings 1 Accepts one LED or incandescent lamp 1 Printed wiring board or snap-in panel mounting 1 Bezels and mounting clips, LEDs and legended lenses can be furnished installed or ordered separately 1 UL recognized, CSA certified PWB Mount (One-piece plunger) MML21 STANDARD PLUNGER SWITCHES ORDER GUIDE MML21K Housing Type MML21K Rectangular Black Housing MML21H Square Black Housing K MML21K Rectangular Black Housing MML21H Square Black Housing 72 MML21KK3AAHRSXX20 as above, legended. Catalog listing codes for switch, less assembled display options Terminals Rectangular Square A No bezel (PWB mounting) K Black bezel, mtg. clip/long sides A No bezel (PWB mounting) R Black bezel & mtg. clip MML21 ONE PIECE LENS/PLUNGER SWITCHES ORDER GUIDE Housing Type Example: MML21KK3AAKRSDR As above, except furnished with red LED and red lens installed. 3 Mounting MML21H Example: MML21KK3AAK Electronic control pushbutton switch with standard plunger; rectangular housing (black); bezel (black); mounting clips on long sides, PWB terminals; 1-pole, momentary action, silver contacts, black plunger. K 3 Printed Wiring Board 2 Solder AA Circuitry/Action (Each pole is double throw) Rectangular Square Silver Contacts: AA 1 pole, mom. action AB 1 pole, alt. action AC 2 pole, mom. action AD 2 pole, alt. action Gold Contacts: BA 1 pole, mom. action BB 1 pole, alt. action BC 2 pole, mom. action BD 2 pole, alt. action Silver contacts: AA 1-pole, mom. action AB 1-pole, alt. action Catalog listing codes for switch, less assembled display options 3 Mounting Terminals Rectangular Square A No bezel (PWB mounting) K Black bezel, mtg. clip/long sides A No bezel (PWB Mounting) R Black bezel & mtg. clip Gold contacts BA 1-pole, mom. action BB 1-pole, alt. action 3 Printed Wiring Board 2 Solder AA Circuitry/Action (Each pole is double throw) Rectangular Square Silver Contacts: AA 1 pole, mom. action AB 1 pole, alt. action AC 2 pole, mom. action AD 2 pole, alt. action Gold Contacts: BA 1 pole, mom. action BB 1 pole, alt. action BC 2 pole, mom. action BD 2 pole, alt. action Silver contacts: AA 1-pole, mom. action AB 1-pole, alt. action Gold contacts BA 1-pole, mom. action BB 1-pole, alt. action Honeywell 1 Sensing and Control 1 1-800-537-6945 USA 1 F1-815-235-6847 International 1 1-800-737-3360 Canada Manual Switches Electronic Control Pushbutton Switches MML21 Series Electrical Data Bezels Strip and matrix mounting PWB pin locations page 69 page 84 page 83 page 91 Order display options assembled to switch by adding codes below3 K RS DR Plunger Type LED* Lens Legend K W XX RS YS GS XX No Lens 20 With Legend (Leave Blank if no legend needed Black White No Led4 Red5 Yellow5 Green5 For LED Display DR Red DY Yellow DG Green For Incandescent or Unlighted Display LR Red LY Yellow LG Green LW White LK Black Use Legend Order Sheet FO-74024 to cover each catalog listing. (See page 80.) Manuals CUSTOMER INSTALLATION: LED 1. Order LED and receptacle, page 84. 2. Installation instructions, page 85/87. Incandescent Lamp 1. Order lamp/PWB receptacle or lamp/solder receptacle, page 86. 2. Installation instructions, page 87. Order display options assembled to switch by adding codes below H RS Button Color (One Piece Plunger) LED* For LED Display H Red L Yellow N Green XX RS YS GS For Incandescent or non-light display R Red Y Yellow G Green Z Black Legend No LED4 Red5 Yellow5 Green5 XX20 With Legend (Leave Blank if no legend needed Use Legend Order Sheet FO-74024 to cover each catalog listing. (See page 81.) * Notes: 1. When an LED is specified in a rectangular MML21 listing, MICRO SWITCH will permanently install it in the housing. 2. MICRO SWITCH does not permanently install an LED in a square MML21 listing. To install an LED in a square housing, order a MML93L or MML93G receptacle and a MML92 LED (see pages 86 and 88). 3. Include four digits (XXXX or XX DR) when a legend is required. 4. For square or rectangular only. 5. For rectangular only. Honeywell 1 Sensing and Control 1 1-800-537-6945 USA 1 F1-815-235-6847 International 1 1-800-737-3360 Canada 73 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Honeywell: MML21HR2AAKXXLK MML21KA3BAKXXLK MML21KK2BAKXXDG MML21KA3BAK-004 MML21KA3BAKXXDR MML21KK2ADK MML21KA3ADKYSLW MML21KK2BAKXXLW20 MML21HA3BBK MML21HA3AAK MML21KA2ADK MML21KK3ADKRSDR MML21HR3AAKXXLW MML21KK2BBKXXLK20 MML21HA3AAKXXDY MML21HR2AAK MML21KA3AAKYSDY MML21HR2ABK MML21KK2AAKRSDR MML21HA3AAN MML21KK3BCK MML21HA3BAKXXDY MML21KA3ACKYSLW MML21KA3AAR MML21HA2ABK MML21HA3BAHXXXX20 MML21HR3BAN MML21KA2ABK MML21HA2AAKXXLG MML21HA3AAKXXDR MML21KK2ABKGSDG MML21KA3AAK MML21HA2AAK MML21KA3BCK MML21KA2BAK MML21KA3BAK MML21HA3BAZXXXX20 MML21KK2BAKXXLW MML21KA3BCKRSDR MML21HR2AAR MML21HR3BAH MML21HR2BBK MML21KA3ADK MML21HA3AAH MML21KA3ACK MML21KA3AAKXXLW MML21HA3AAKXXDG MML21HA2AAKXXLR MML21KK2AAKYSDY MML21KK3AAKRSDR MML21HA3ABZ MML21HA3BANXXXX20 MML21KA3ADKRSDR