Motor and Pump Protection

  • MP8000

  • The MP8000 is an advanced motor protection electronic overload relay that is fully programmable via ...More

  • Supply
    Voltage
    VAC:     85 - 264

  • Input
    Voltage (V):     90 - 690 Vac (use of external PTs can extend the upper range above 690 Vac)

  • Output
    Form:     Control relay: SPST - Form A; Auxilliary relay: SPDT - Form C

  • 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 Config: 3 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 Config: 3 Form A (N.O.); 2 Form C (N.O./N.C.)

  • 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):     115 Vac

  • Input Load Range (hp): 1/3 - 1

  • Output
    Form:     SPST

  • 231

  • The Littelfuse 231-Insider-P fits inside 1/3, 1/2, 3/4, and 1 hp, 230V control boxes and are designe...More

  • Input
    Voltage (V):     230 Vac

  • Input Load Range (hp): 1/3 - 1

  • Output
    Form:     SPST

  • 233P

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

  • Input
    Voltage (V):     230 Vac

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

  • Output
    Form:     SPST

  • 234

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

  • Input
    Voltage (V):     230 Vac

  • Input Load Range (hp): 1/3 - 3

  • Output
    Form:     SPST

  • 235P

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

  • Input
    Voltage (V):     230 Vac

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

  • Output
    Form:     SPST

  • 777

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

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

  • Output
    Form:     SPDT - Form C

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

  • 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):     200 - 480 Vac, 340 - 480 Vac, 500 - 600 Vac

  • Output
    Form:     SPDT - Form C

  • Termination Type: Torque: 7 in-lbs

  • 77C

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

  • Input
    Voltage (V):     100 - 240 Vac, 340 - 480 Vac

  • Output
    Form:     SPDT - Form C

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

  • MPS-469X

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

  • Communications: RS/TIA-485, RS/TIA-485
    DeviceNet

  • Frequency: 50
    60
    ASD

  • Information Not Available

  • PGR-6200

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

  • Communications: RS/TIA-232, RS/TIA-232
    DeviceNet, RS/TIA-232
    Ethernet, RS/TIA-232
    RS/TIA-485

  • Frequency: 50
    60
    ASD

  • Information Not Available

  • PGR-6300

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

  • Communications: RS/TIA-485, RS/TIA-485
    DeviceNet, RS/TIA-485
    Ethernet, RS/TIA-485
    Profibus

  • Frequency: 50
    60
    ASD

  • Information Not Available

  • PGR-6310

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

  • Communications: RS/TIA-485, RS/TIA-485
    DeviceNet, RS/TIA-485
    Ethernet, RS/TIA-485
    Profibus

  • Frequency: 50
    60
    ASD

  • Information Not Available

  • PGR-6210

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

  • Communications: RS/TIA-232, RS/TIA-232
    DeviceNet, RS/TIA-232
    Ethernet, RS/TIA-232
    RS/TIA-485, RSTIA-232

  • Frequency: 50
    60
    ASD

  • Information Not Available

  • PGR-6150

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

  • Communications: RS-485

  • Dimensions: 2.2H X 4.2W X 0.9D, 3.3H X 3.1W X 3.9D

  • Frequency: 50
    60

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.

pdf icon Littelfuse Single & Three-Phase Pump Protection

pdf icon Smart Relay Creates Safety and Efficiency Boom - Case Study

pdf icon Motor Protection Brochure

pdf icon What's your relay telling you?

Smart motor protection relays provide the ultimate combination of protection and troubleshooting. By accessing information on a built-in screen or through the IoT, smart relays give real-time data that helps you detect problems plus understand the causes that contribute to them.
pdf icon Motor Protection Checklist

For Technical Questions

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

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