Motor and Pump Protection


  • MPU-32

  • The MPU-32 Motor Protection Unit is used to provide current and temperature-based protection, meteri...More

  • Supply
    Voltage
    (VAC):
     65 - 265

  • Supply
    Voltage
    (VDC):
     80 - 275

  • Relay
    Contacts:
     Three Form C (N.O./N.C.)

  • MPS

  • The MPS Motor Protection System monitors voltage, current, and temperature to provide a comprehensiv...More

  • Supply
    Voltage
    (VAC):
     65 - 265

  • Supply
    Voltage
    (VDC):
     80 - 275

  • Relay
    Contacts:
     Three Form A (N.O.); Two Form C (N.O./N.C.)

  • littelfuse Motor and Pump Protection Relays

    111P

  • The Littelfuse Models 111P (115 volt, 1/3 to 1hp); 233P-1.5 (230 volt, 1/3 to 1.5hp); and 233P (230 ...More

  • Input
    Voltage (V):
     115VAC

  • Input Load Range (hp): 1/3 - 1 hp

  • Output
    Form:
     SPST

  • Littelfuse Motor and Pump Protection Relays

    233P

  • The 233P is a single-phase pump monitor designed to protect single-phase pumps from dry-well, dead-h...More

  • Input
    Voltage (V):
     230VAC

  • Input Load Range (hp): 1/3 - 3 hp, 1/3 - 1.5 hp

  • Output
    Form:
     SPST

  • littelfuse Motor and Pump Protection Relays

    234

  • The PumpSaver® Model 234-P protects singlephase pumps from dry-well, dead-head, rapid-cycle, ja...More

  • Input
    Voltage (V):
     230VAC

  • Input Load Range (hp): 1/3 - 3 hp

  • Output
    Form:
     SPST

  • littelfuse Motor and Pump Protection Relays

    235P

  • The Littelfuse 235P is designed to protect 5-15 hp, 230V, single-phase pumps from dry-well, dead-hea...More

  • Input
    Voltage (V):
     230VAC

  • Input Load Range (hp): 5 - 15 hp (external current transformer required)

  • Output
    Form:
     SPST

  • littelfuse Motor and Pump Protection Relays

    777 Series

  • The 777 is a fully programmable electronic overload relay designed to protect any motor drawing 2-80...More

  • Input
    Voltage (V):
     500 to 600VAC, 200 - 480VAC, 200 to 480VAC, 340 to 480VAC, , 100 to 240VAC

  • Output
    Form:
     SPDT - Form C

  • Termination Type: Torque: 7in-lbs

  • Littelfuse Power Monitors

    777-KW/HP-P2

  • The 777-KW/HP-P2 Series has the overload, voltage, phase loss and reversal, voltage and current unba...More

  • Input
    Voltage (V):
     500 to 600VAC, 340 to 480VAC, 200 to 480VAC

  • Output
    Form:
     SPDT - Form C

  • Termination Type: Torque: 7in-lbs

  • littelfuse Motor and Pump Protection Relays

    777/77C Series

  • The 777/ 77C is a fully programmable electronic overload relay designed to protect any motor drawing...More

  • Input
    Voltage (V):
     340 to 480VAC, 100 to 240VAC

  • Output
    Form:
     SPDT - Form C

  • Termination Type: Torque: 7in-lbs, 7 in.-lbs.

  • MPS 469X

  • The MPS-469X Motor Protection Retrofit Kit replaces the GE Multilin 469 relay. It includes the MPS M...More

  • Supply
    Voltage
    (VAC):
     65 - 265

  • Supply
    Voltage
    (VDC):
     80 - 275

  • Relay
    Contacts:
     Three Form A (N.O.); Two Form C (N.O./N.C.)

  • PGR-6200

  • Replaced by MPU-32 Motor Protection Unit. The PGR-6200 Motor Protection Relay offers enhanced motor ...More

  • Supply
    Voltage
    (VAC):
     65 - 265

  • Supply
    Voltage
    (VDC):
     80 - 275

  • Relay
    Contacts:
     Three Form C (N.O./N.C.)

  • PGR-6300

  • Replaced by MPS Motor Protection System. The PGR-6300 Motor Protection System monitors voltage, curr...More

  • Supply
    Voltage
    (VAC):
     65 - 265

  • Supply
    Voltage
    (VDC):
     80 - 275

  • Relay
    Contacts:
     Three Form A (N.O.); Two Form C (N.O./N.C.)

  • PGR-6310

  • The PGR-6310 Motor Protection Kit replaces the GE Multilin 469 relay. It includes the PGR-6300 Motor...More

  • Supply
    Voltage
    (VAC):
     65 - 265

  • Supply
    Voltage
    (VDC):
     80 - 275

  • Relay
    Contacts:
     Three Form A (N.O.); Two Form C (N.O./N.C.)

  • PGR-6210

  • The PGR-6210 Motor Protection Retrofit Kit is designed to replace GE Multilin 169, 269, and 369 rela...More

  • Supply
    Voltage
    (VAC):
     65 - 265

  • Supply
    Voltage
    (VDC):
     80 - 275

  • Relay
    Contacts:
     Three Form C (N.O./N.C.)

  • PGR-6130

  • Obsolete 05/26/2016. The PGR-6130 Electronic Overload Relay provides protection for small three-phas...More

  • Supply
    Voltage
    (VAC):
     120, 24, 240

  • Supply
    Voltage
    (VDC):
     24

  • Relay
    Contacts:
     One Form A (N.O.); One Form B (N.C.)

  • PGR-6150

  • Obsolete 05/26/2016. The PGR-6150 Motor Protection System provides 13 protective functions by utiliz...More

  • Supply
    Voltage
    (VAC):
     120/240

  • Supply
    Voltage
    (VDC):
     120/240, 24/48

  • Relay
    Contacts:
     Two Form C (N.O./N.C.)

  • PGR-6800

  • Obsolete 05/26/2016. The PGR-6800 Pump Protection Relay provides protection for pumps with three-pha...More

  • Supply
    Voltage
    (VAC):
     120, 24, 240

  • Supply
    Voltage
    (VDC):
     24

  • Relay
    Contacts:
     One Form A (N.O.); One Form B (N.C.)

Motors are a significant investment and often run critical processes. Motor protection relays are used to protect the windings from damage due to electrical faults and thermal overloads. Adequate motor protection not only prevents motor damage, but also ensures optimal process efficiency and minimal interruption. Cost recovery when using a motor protection relay is achieved by extending the life of the motor, preventing motor rewinds and reducing downtime.