3504002

Protection Relays Voltage Monitoring Relays 350 SERIES 3-phase voltage/phase monitor Description The 350 Series is a heavy-duty voltage monitor. This product should be used when high current relays or dual contacts are required, or 480V controls are used. Since the 350 Series uses heavy-duty relays, it comes in fixed voltage range models rather than a dual auto-ranging version like the Model 250. The 350200 has a 15A general purpose contact. The 350400 provides a SPDT (Form C) relay rated to switch up to 600V, allowing the use of 480V controls, eliminating the need for a control power transformer to step the voltage down to 120-240V. Several DPDT (two Form C contacts) relay models are also available. The 350 microcontroller-based family of products are low cost yet highly advanced solutions to heavy-duty problems. The 350 includes advanced single LED diagnostics. Five different light patterns distinguish faults and normal operating conditions. Other options such as high voltage trip and adjustable restart delay are available. Wiring Diagram Features & Benefits FEATURES BENEFITS Proprietary microcontroller based circuitry Constantly monitors 3 phase voltage to protect against harmful line conditions, even before the motor is started Advanced LED indication Provides diagnostics which can be used for troubleshooting and to determine relay status Adjustable restart delay (-2 models) settings Allows staggered start up of multiple motors, after a fault, to prevent a low voltage condition 600V rated relay contacts available on some models Eliminates the need for a control transformer to step voltage down to 120 - 240V for a control circuit Ordering Information MODEL LINE VOTAGE DESCRIPTION MODEL LINE VOTAGE DESCRIPTION 350200 190-240VAC SPDT, fixed trip and restart delay 35040026 380-480VAC DPDT, 2 relays (1)10a. (1) 15A; fixed trip and variable restart delay (manual, 2-300s) 3502002 190-240VAC SPDT, fixed trip and variable restart delay (manual, 2-300s) 35040028** 380-480VAC DPDT, 2 relays 15A; variable restart delay (no manual reset) 35020026 190-240VAC DPDT, 2 relays (1)10a. (1) 15A; fixed trip and variable restart delay (manual, 2-300s) 35040029 380-480VAC SPDT, fixed trip and variable restart delay (manual, 2-300s), plus high voltage detection 35020028** 190-240VAC DPDT, 2 relays 15A; variable restart delay (no manual reset) 350600 475-600VAC SPDT, fixed trip and restart delay 35020029 190-240VAC SPDT, fixed trip and variable restart delay (manual, 2-300s), plus high voltage detection 3506002 475-600VAC SPDT, fixed trip and restart delay (manual, 2-300s) 350400 380-480VAC SPDT, fixed trip and restart delay 35060026 475-600VAC DPDT, 2 relays (1)10a. (1) 15A; fixed trip and variable restart delay (manual, 2-300s) 3504002 380-480VAC SPDT, fixed trip and variable restart delay (manual, 2-300s) 35060028** 475-600VAC DPDT, 2 relays 15A; variable restart delay (no manual reset) 35040025 380-480VAC DPDT, fixed trip and variable restart delay (manual, 2-300s) 35060029 475-600VAC SPDT, fixed trip and variable restart delay (manual, 2-300s), plus high voltage detection ** These units are not equipped with Manual Reset. © 2016 Littelfuse Protection Relays & Controls www.littelfuse.com/350 Rev: 1-A-062716 Protection Relays Voltage Monitoring Relays 350 SERIES Specifications Input Characteristics Line Voltage 350200 350400 350600 Frequency Functional Characteristics Low Voltage (% of setpoint) Trip Reset Voltage Unbalance (NEMA) Trip Reset Trip Delay Time: Low Voltage Unbalance & Phasing Faults Restart Delay Time After a Fault After a Complete Power Loss Output Characteristics Output Contact Rating SPDT (350200) Pilot Duty General Purpose SPDT (350-400, 350-600) DPDT (-6 Option) DPDT (-8 Option) 190-240VAC 380-480VAC 475-600VAC 50*/60Hz 90% 93% 6% 4.5% 4 seconds 2 seconds 2 seconds 2 seconds 480VA @ 240VAC 15A 470VA @ 600VAC 1-10A General Purpose 480VA @ 240VAC Pilot Duty 1-15A General Purpose 480VA @ 240VAC Pilot Duty 1hp @ 240VAC 2-15A General Purpose 480VA @ 240VAC Pilot Duty 1hp @ 240VAC © 2016 Littelfuse Protection Relays & Controls www.littelfuse.com/350 General Characteristics Ambient Temperature Range Operating -40° to 70°C (-40° to 158°F) Storage -40° to 80°C (-40° to 176°F) Trip & Reset Accuracy ±1% Maximum Input Power 5W Terminal Torque 7 in.-lbs. Wire Size 12-18AWG Transient Protection (Internal) IEC 61000-4-5;1995 ±6kV Safety Marks UL UL508 (File #E68520) CSA 22.2 No. 14 (File #46510) CE IEC 60947-6-2 Dimensions H 74.42 mm (2.93”); W 133.86 mm (5.27”); D 74.93 mm (2.95”) Weight 1.05 lbs. (16.8 oz., 476.27 g) Mounting Method #8 screws Special Options Opt. 2: Variable Restart Delay Manual, 2-300 seconds adj. Opt. 5: DPDT Relay Opt. 6: 2 Relays (1) 10A, (1) 15A Opt. 8: 2 Relays (2) 15A Opt. 9: High Voltage (% of setpoint) Trip 110% Reset 107% *Note: 50Hz will increase all delay timers by 20%. Rev: 1-A-062716