460 Series – Three-Phase Voltage Monitor Series - Littelfuse 460 Voltage Monitoring Relays Provide Superior Protection

Series: 460 Series – Three-Phase Voltage Monitor
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The 460 series is a three-phase voltage monitor that protects 190–480 V ac or 475–600 V ac, 50/60 Hz motors regardless of their size. This voltage monitor provides a user-selectable nominal voltage setpoint and will automatically sense line voltage. A unique microcontroller-based voltage and phase-sensing circuit constantly monitors the three-phase voltage to detect harmful power line conditions such as low, high, and unbalanced voltage, loss of any phase, and phase reversal. When a harmful condition is detected, the MotorSaver® output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to an acceptable level for a specified amount of time (restart delay). The trip and restart delays prevent nuisance tripping due to rapidly fluctuating power line conditions. All 460 models feature an adjustable 1–30 second trip delay, 1–500 second restart delay, 2–8 % voltage unbalance trip point, and one form C contact except where noted on the datasheet.

Features

  • Auto-sensing wide voltage range
  • Adjustable trip & restart delay settings
  • Microcontroller-based circuitry
  • Advanced LED diagnostics
  • Adjustable voltage unbalance trip setting

Product Literature

For Technical Questions

Call +1 800-832-3873 or email us at relays@littelfuse.com 

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)		Output
Form		Termination TypeMounting MethodDimensionsWeight (lbs/g)HumidityInput AC Line Frequency (Hz)Maximum Input PowerOutput Load Rating (VA)Overvoltage Reset Voltage (%)Overvoltage Trip Voltage (%)Protection ClassRestart Delay RangeStorage Temperature (F/C)StockSamplesCompare
460190 - 480 VacForm CTorque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal35mm DIN rail or Surface Mount (#6 or #8 screws)3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm)0 Kg10 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)6Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 10 A @ 240 Vac107%110%IP20; NEMA 1 (finger safe)1 - 500 s adjustable-40° to 80°C (-40° to 176°F)CheckOrder
460-14190 - 480 Vac1 Form A and 1 Form BTorque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal35mm DIN rail or Surface Mount (#6 or #8 screws)3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm)0 Kg10 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)6Pilot Duty: 360 VA @ 240 Vac B300; General Purpose: 8 A @ 240 Vac107%110%IP20; NEMA 1 (finger safe)1 - 500 s adjustable-40° to 80°C (-40° to 176°F)CheckOrder
460-15190 - 480 Vac2 Form ATorque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal35mm DIN rail or Surface Mount (#6 or #8 screws)3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm)0 Kg10 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)6Pilot Duty: 360 VA @ 240 Vac B300; General Purpose: 8 A @ 240 Vac107%110%IP20; NEMA 1 (finger safe)1 - 500 s adjustable-40° to 80°C (-40° to 176°F)CheckOrder
460-400HZ190 - 480 VacForm CTorque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal35mm DIN rail or Surface Mount (#6 or #8 screws)3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm)0 Kg10 - 95% non-condensing per IEC 68-2-34006Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 10 A @ 240 Vac107%110%IP20; NEMA 1 (finger safe)1 - 500 s adjustable-40° to 80°C (-40° to 176°F)CheckOrder
460-575475 - 600 VacForm CTorque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal35mm DIN rail or Surface Mount (#6 or #8 screws)3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm)0 Kg10 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)6Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 10 A @ 240 Vac107%110%IP20; NEMA 1 (finger safe)1 - 500 s adjustable-40° to 80°C (-40° to 176°F)CheckOrder
460-575-14475 - 600 Vac1 Form A and 1 Form BTorque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal35mm DIN rail or Surface Mount (#6 or #8 screws)3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm)0 Kg10 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)6Pilot Duty: 360 VA @ 240 Vac B300; General Purpose: 8 A @ 240 Vac107%110%IP20; NEMA 1 (finger safe)1 - 500 s adjustable-40° to 80°C (-40° to 176°F)CheckOrder
460-B190 - 480 VacForm CTorque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal35mm DIN rail or Surface Mount (#6 or #8 screws)3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm)0 Kg10 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)6Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 10 A @ 240 Vac107%110%IP20; NEMA 1 (finger safe)1 - 500 s adjustable-40° to 80°C (-40° to 176°F)CheckOrder
460-L190 - 480 VacForm CTorque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal35mm DIN rail or Surface Mount (#6 or #8 screws)3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm)0 Kg10 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)6Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 10 A @ 240 Vac107%110%IP20; NEMA 1 (finger safe)1 - 500 s adjustable-40° to 80°C (-40° to 176°F)CheckOrder
460-MR190 - 480 VacForm CTorque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal35mm DIN rail or Surface Mount (#6 or #8 screws)3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm)0 Kg10 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)6Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 10 A @ 240 Vac107%110%IP20; NEMA 1 (finger safe)1 - 500 s adjustable-40° to 80°C (-40° to 176°F)CheckOrder
460-OEM190 - 480 VacForm CTorque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal35mm DIN rail or Surface Mount (#6 or #8 screws)3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm)0 Kg10 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)6Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 10 A @ 240 Vac107%110%IP20; NEMA 1 (finger safe)1 - 500 s adjustable-40° to 80°C (-40° to 176°F)CheckOrder
460-VBM190 - 480 VacForm CTorque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal35mm DIN rail or Surface Mount (#6 or #8 screws)3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm)0 Kg10 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)6Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 10 A @ 240 Vac-3% of the trip voltage208 - 528 VacIP20; NEMA 1 (finger safe)1 - 500 s adjustable-40° to 80°C (-40° to 176°F)CheckOrder
460L-OEM190 - 480 VacForm CTorque: 6 in-lbs; Wire: Stranded or solid 12 - 20 AWG one per terminal35mm DIN rail or Surface Mount (#6 or #8 screws)3.5 H x 2.08 W x 2.35 D in. (88.9 x 52.9 x 59.7 mm)0 Kg10 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)6Pilot Duty: 480 VA @ 240 Vac B300; General Purpose: 10 A @ 240 Vac107%110%IP20; NEMA 1 (finger safe)1 - 500 s adjustable-40° to 80°C (-40° to 176°F)CheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
460-B 3-PHASE VOLT MON/ 190-480V/AD RoHS No 02/15/2021 PbFree No 02/15/2021 CoC_RoHS9_460-B REACH211_Declaration_(Contain)_460-B Yes
02/15/2021		 Contains
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