Voltage Monitoring Relays


  • Littelfuse Voltage Monitoring Relays

    102

  • The 102A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-400VAC, 50/60Hz mo...More

  • Input
    Voltage (V):
     475 to 600VAC

  • Output
    Form:
     SPDT - 1 Form C

  • Termination Type: Torque: 7in-lbs; Wire Size: 12-18AWG solid or stranded

  • Littelfuse Voltage Monitoring Relays

    102A

  • The 102A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-600VAC, 50/60Hz mo...More

  • Input
    Voltage (V):
     190 to 480VAC

  • Output
    Form:
     SPDT - 1 Form C

  • Termination Type: Torque: 7in-lbs; Wire Size: 12-18AWG

  • Littelfuse Voltage Monitoring Relays

    201-XXX-SP

  • The 201-xxx-SP is an 8-pin octal-base, plug-in voltage monitor designed to protect single-phase moto...More

  • Input
    Voltage (V):
     95 to 120VAC, 190 to 240VAC

  • Output
    Form:
     SPDT

  • Termination Type: Torque: 12 in-lbs; Wire: Stranded or solid 10-22AWG

  • Littelfuse Voltage Monitoring Relays

    201-XXX-SP-DPDT

  • The 201-xxx-SP-DPDT is an 8-pin octal-base, plug-in voltage monitor designed to protect single-phase...More

  • Input
    Voltage (V):
     95 to 120VAC, 190 to 240VAC

  • Output
    Form:
     DPDT

  • Termination Type: Torque: 12 in-lbs; Wire: Stranded or solid 10-22AWG

  • Littelfuse Voltage Monitoring Relays

    201-XXX-DPDT

  • The 201-xxx-DPDT is an 11-pin octal base plug-in voltage monitor designed to protect 3-phase motors ...More

  • Input
    Voltage (V):
     95 to 120VAC, 190 to 240VAC

  • Output
    Form:
     DPDT

  • Termination Type: Torque: 12 in-lbs; Wire: Stranded or solid 10-22AWG

  • Littelfuse Voltage Monitoring Relays

    201A

  • The 201A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50/60Hz mo...More

  • Input
    Voltage (V):
     190 to 480VAC

  • Output
    Form:
     SPDT

  • Termination Type: Torque: 12in-lbs; Wire: Stranded or solid 12-22AWG

  • Littelfuse Voltage Monitoring Relays

    201A-AU

  • The 201A-AU is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50/60Hz...More

  • Input
    Voltage (V):
     475 to 600VAC, 190 to 480VAC

  • Output
    Form:
     Form C

  • Mounting Method: DIN rail or surface mount (plug-in to OT08-PC socket)

  • Littelfuse Voltage Monitoring Relays

    202/202-RP

  • The 202 series is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-600VAC, 50/6...More

  • Input
    Voltage (V):
     475 to 600VAC, 190 to 480VAC

  • Output
    Form:
     SPDT

  • Termination Type: 0.25 in male quick connect

  • Littelfuse Voltage Monitoring Relays

    250A

  • The 250A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50*/60Hz m...More

  • Input
    Voltage (V):
     190 to 480VAC, 95 to 120VAC, 500 to 600VAC

  • Output
    Form:
     DPDT - 2 Form C

  • Termination Type: Torque: 7in-lbs; Wire: 12-18AWG, Torque: 7in-lbs; Wire: 12-18AWG solid or stranded

  • Littelfuse Voltage Monitoring Relays

    350

  • The 350 is a heavy-duty voltage monitor. This product should be used when high current relays or dua...More

  • Input
    Voltage (V):
     190 to 240VAC, 380 to 480VAC, 475 to 600VAC

  • Output
    Form:
     SPDT, DPDT

  • Termination Type: Torque: 7in-lbs; Wire Size: 12-18AWG

  • Littelfuse Voltage Monitoring Relays

    355

  • The 355 is a 3-phase voltage monitor with adjustable trip and restart delay, adjustable voltage unba...More

  • Input
    Voltage (V):
     190 to 240VAC, 380 to 480VAC, 475 to 600VAC

  • Output
    Form:
     SPDT, DPDT

  • Termination Type: Torque: 7in-lbs; Wire Size: 12-18AWG

  • Littelfuse Voltage Monitoring Relays

    455

  • The Model 455 is a 3-phase, dual-range voltage monitor that automatically selects between 200V and 4...More

  • Input
    Voltage (V):
     190 to 480VAC, 380 to 480VAC, 475 to 600VAC

  • Output
    Form:
     SPDT

  • Termination Type: Torque: 7in-lbs; Wire Size: 12-18AWG

  • Littelfuse Voltage Monitoring Relays

    460-XXX-SP

  • The 460-100-SP is used on 95-120VAC, 50*/60Hz single-phase motors and the 190-240VAC, 50*/60Hz singl...More

  • Input
    Voltage (V):
     95 to 120VAC, 190 to 240VAC

  • Output
    Form:
     1 Form C

  • Termination Type: Torque: 6in-lbs; Wire: Stranded or solid 12-20AWG one per terminal

  • Littelfuse Voltage Monitoring Relays

    460 Series

  • The 460 is a 3-phase voltage monitor that protects 190-480VAC or 475-600V, 50/60Hz motors regardless...More

  • Input
    Voltage (V):
     190 to 480VAC, 475 to 600VAC

  • Output
    Form:
     Form C, 1 Form A and 1 Form B, 2 Form A

  • Termination Type: Torque: 6in-lbs; Wire: Stranded or solid 12 - 20AWG one per terminal, Torque: 6in-lbs; Wire: Stranded or solid 12-20AWG one per terminal

  • Littelfuse Voltage Monitoring Relays

    50R

  • The 50R single-phase voltage monitor has a voltage-sensing circuit which constantly monitors the sin...More

  • Input
    Voltage (V):
     95 to 120VAC, 190 to 240VAC, 380 to 480VAC

  • Output
    Form:
     SPDT - 1 Form C

  • Termination Type: Torque: 7in-lbs; Wire: 12-18AWG

  • Littelfuse Voltage Monitoring Relays

    601

  • The Model 601 is a fully-programmable voltage monitor designed to protect 3-phase motors. It can be ...More

  • Input
    Voltage (V):
     200 to 480VAC, 500 to 600VAC

  • Termination Type: Torque: 7in-lbs

  • Mounting Method: Surface mount (4 - #8 screws) or DIN rail mount

  • Littelfuse Voltage Monitoring Relays

    DLMU

  • The DLMU Series is a universal voltage, 3-phase voltage monitor. It continuously measures the voltag...More

  • Input
    Voltage (V):
     500-600VAC, 200-480VAC

  • Termination Type: Screw terminal with captive wire clamps for up to #14 AWG (2.5mm2) wire

  • Mounting Method: Surface mount with two #8 (M4 x 0.7) screws or snap on 35mm DIN rail

  • Littelfuse Voltage Monitoring Relays

    HLMU

  • The HLMU Series is a universal voltage, encapsulated, 3-phase voltage monitor. It continuously measu...More

  • Input
    Voltage (V):
     200-240VAC; 340-420VAC; 400-480VAC

  • Output
    Form:
     DPDT

  • Termination Type: Screw terminal connection for up to #12 AWG (3.3mm2) wire

  • Littelfuse Voltage Monitoring Relays

    HLV

  • The HLV Series is a single-phase undervoltage monitor designed to protect sensitive equipment from b...More

  • Input
    Voltage (V):
     Min RMS Voltage: 70VAC; Max RMS Voltage: 264VAC

  • Output
    Form:
     Isolated SPDT

  • Termination Type: 0.25 in. (6.35mm) male quick connect terminals

  • Littelfuse Voltage Monitoring Relays

    KVM

  • The KVM Series is a single-phase undervoltage monitor designed to protect sensitive equipment agains...More

  • Input
    Voltage (V):
     110 to 120VAC or 220 to 240VAC

  • Output
    Form:
     SPDT

  • Termination Type: 0.25 in. (6.35mm) male quick connect terminals

  • Littelfuse Voltage Monitoring Relays

    PLM

  • The PLM Series is a 3-phase voltage monitor that continuously monitors each of the three phases. Mon...More

  • Input
    Voltage (V):
     200 to 240VAC, 360 to 430VAC, 400 to 480VAC

  • Output
    Form:
     Isolated SPDT

  • Termination Type: Octal 8-pin plug-in rated 600VAC

  • Littelfuse Voltage Monitoring Relays

    PLMU11

  • The PLMU11 continuously measures the voltage of each of the three phases to provide protection for 3...More

  • Input
    Voltage (V):
     200 to 480VAC

  • Output
    Form:
     Isolated SPDT

  • Termination Type: Octal 8-pin plug-in

  • Littelfuse Voltage Monitoring Relays

    PLR

  • The PLR Series provides a cost effective means of preventing 3-phase motor startup during adverse vo...More

  • Input
    Voltage (V):
     95 to 140VAC, 190 to 270VAC, 340 to 450VAC, 380 to 500VAC

  • Output
    Form:
     SPDT

  • Termination Type: Octal 8-pin plug-in

  • Littelfuse Voltage Monitoring Relays

    PLS

  • The PLS Series is a low cost phase sensitive control that provides an isolated contact closure when ...More

  • Input
    Voltage (V):
     95 to 135VAC, 175 to 255VAC, 380 to 500VAC

  • Output
    Form:
     Isolated SPDT

  • Termination Type: Octal 8-pin plug-in

  • Littelfuse Voltage Monitoring Relays

    TVM

  • The TVM series provides protection for motors and other sensitive loads. ontinuously measures the v...More

  • Input
    Voltage (V):
     208VAC, 230VAC, 460VAC, 480VAC

  • Termination Type: 0.25 in. (6.35mm) male quick connect terminals

  • Mounting Method: Suface mount with one #8 (M5 x 0.8) screw

  • Littelfuse Voltage Monitoring Relays

    TVW

  • The TVW Series provides protection for motors and other sensitive loads. Continuously measures the v...More

  • Input
    Voltage (V):
     208 to 240VAC, 208 220 230 and 240VAC, 380 400 and 415VAC, 430 440 460 and 480VAC

  • Termination Type: 0.25 in. (6.35mm) male quick connect terminals

  • Mounting Method: Suface mount with one #8 (M5 x 0.8) screw

  • Littelfuse Voltage Monitoring Relays

    WVM

  • The WVM Series provides protection against premature equipment (motor) failure caused by voltage fau...More

  • Input
    Voltage (V):
     500 to 600VAC, 200 to 240VAC, 355 to 425VAC, 400 to 480VAC

  • Output
    Form:
     Isolated SPDT

  • Termination Type: Screw terminals with captive wire clamps for up to #12 AWG (3.2mm2) wire