Many pumping applications require advanced power monitoring and control. SymCom enhanced power monitors provide all of the protection and features included with an enhanced overload relay, and are designed specifically to support low horsepower and/or low speed motor applications. This family of Littelfuse enhanced power monitors provides optimal protection for any type of motor or pump. SymCom motor & pump protection relays prevent damage to motors caused by overloads, jams, phase loss or unbalance, heat from non-electric sources, heavy start-ups and excessive operational cycles. Dynamic thermal curves, as well as integrated protection, metering, and data-logging functions extend motor life and maximize process efficiency. Monitoring, control, and protection are critical and necessary functions in motor and pumping applications. SymCom’s single-phase and three-phase UL listed enhanced overload relays monitor for both line-side voltage problems and load-side current faults, providing an added layer of protection over voltage monitors and other basic overload relays. All SymCom PumpSaver Plusoverload relays are user configurable and cover a wide range of voltages and currents, making them the most versatile in the industry. A standard feature of the entire family of SymCom MotorSaver Plus overload relays is a communications port which provides easy connectivity to a SCADA system, PLC, or virtually any network through the use of a communications module. The communications port allows remote monitoring of motor operations and fault conditions through easy connectivity to SymCom’s Remote Monitors, aiding compliance with arc flash safety regulations.

Littelfuse/SymCom 111P Submersible Pump Protection Relays Distributors
111P

The Littelfuse/SymCom Models 111P (115 volt, 1/3 to 1hp); 233P-1.5 (230 volt, 1/3 to 1.5hp); and 233P (230 volt, 1/3 to 3hp) protect pumps from dry-well, dead-head, jammed impeller, overvoltage/ undervoltage conditions and now rapid-cycle protection whether the pressure switch is mounted before or after our unit. A calibration adjustment allows the Insider to be calibrated to your specific pumping applications, thereby reducing the possibility of false or nuisance tripping. A unique microcontroller based voltage and current-sensing circuit constantly monitors the incoming power for fluctuations, overcurrent, and undercurrent. When an abnormality, such as loss of suction is detected, the product deactivates its output relay and directly disconnects the pump motor. The relay then begins its user selectable restart delay (dry-well recovery) timer. When the timer counts to zero or power is removed and reapplied, the relay reactivates its output relay and turns the pump back on. The relay communicates with a hand-held diagnostics tool called the Informer (sold separately). The Informer displays parameters including calibration points, trip points, run time and last faults.

Littelfuse/SymCom 231-Insider-P Single-Phase Protection for Submersible Pumps Distributors
231-Insider-P

The Littelfuse/SymCom 231-Insider-P fits inside 1/3, 1/2, 3/4, and 1 hp, 230V control boxes and are designed to protect single-phase pumps from dry-well, dead-head, jammed impeller, rapid-cycle, overvoltage, and undervoltage conditions. A calibration adjustment allows the Insider to be calibrated to your specific pumping applications, thereby reducing the possibility of false or nuisance tripping. A unique microcontroller-based voltage and current-sensing circuit constantly monitors the incoming power for fluctuations, overcurrent, and undercurrent. When an abnormality, such as loss of suction is detected, the product deactivates its output relay and directly disconnects the pump motor. The relay then begins its user-selectable restart delay (dry-well recovery) timer. When the timer counts to zero or power is removed and reapplied, the relay reactivates its output relay and turns the pump back on. By leaving the restart delay knob in the reset position, the relay will operate in manual reset mode. The Insider communicates with a hand-held diagnostics tool called the Informer (sold separately). The Informer displays parameters including calibration points, trip points, run time and last faults. An IR Kit-12 (12" fiber optic kit) is included with each Insider, allowing the Informer to access these parameters even when the Insider is enclosed in a control box. This is valuable for troubleshooting the pump while it is running.

Littelfuse/SymCom 232-Insider Single-Phase Protection for Grundfos Pumps Distributors
232-Insider

The Littelfuse/SymCom Model 232-Insider single-phase PumpSaver fits inside 1/3, 1/2, 3/4, and 1hp, 230V Grundfos control boxes. The PumpSaver Model 232-Insider is a current monitor designed to protect single-phase pumps from dry-well, dead-head, jammed impeller, overvoltage and undervoltage conditions. Typical applications include residential water wells, commercial water wells, irrigation wells, and golf course systems.

Littelfuse/SymCom 233P Single-Phase Pump Monitors Distributors
233P

The Littelfuse/SymCom 233P is a single-phase pump monitor designed to protect single-phase pumps from dry-well, dead-head, jammed impeller, rapid cycle, overvoltage and undervoltage conditions. The 233P protects 230 volt, 2 or 3 wire, 1/3 to 3hp pumps. A calibration adjustment allows the 233P to be calibrated to your specific pumping applications, thereby reducing the possibility of false or nuisance tripping. A proprietary microcontroller based voltage, power factor and current-sensing circuit constantly monitors for power fluctuations, overcurrent and underload conditions. When an abnormality, such as loss of suction, is detected, the 233P deactivates its output relay and directly disconnects the pump motor. The relay then begins its user-selectable "Restart Delay" (dry-well recovery) timer. When the timer expires or power is removed and reapplied, the relay reactivates its output relay and allows the pump to turn back on. An infrared LED communicates directly with a hand-held diagnostic tool called the Informer (sold separately).

Littelfuse/SymCom 234 Single-Phase Pump Protection for Grundfos Submersible Pumps Distributors
234

The Littelfuse/SymCom PumpSaver Model 234-P protects singlephase pumps from dry-well, dead-head, rapid-cycle, jammed-impeller, and over/undervoltage conditions. Typical applications include residential waterwells, commercial waterwells, irrigation wells, and golf course and other sprinkler systems. The PumpSaver Model 234-P is designed to be mounted inside a Grundfos™ control box to protect 1/3-3hp, 2- or 3-wire, 230V pumps. An infrared LED communicates directly with a handheld diagnostic tool called the Informer (sold separately).

Littelfuse/SymCom 235P Single-Phase Pump Monitors Distributors
235P

The Littelfuse/SymCom 235P is designed to protect 5-15 hp, 230V, single-phase pumps from dry-well, dead-head, jammed impeller and overvoltage and undervoltage conditions. A calibration adjustment allows the 235P to be calibrated to your specific pumping applications, thereby reducing the possibility of false or nuisance tripping. A unique microcontrollerbased voltage and current-sensing circuit constantly monitors the incoming power for fluctuations causing overcurrent and undercurrent. When an abnormality, such as loss of suction is detected, the 235P deactivates its output relay and directly disconnects the pump motor. The 235P communicates with a hand-held diagnostics tool called the Informer (sold separately). The Informer displays parameters including calibration points, trip points, run time and last faults. An external current transformer is required for operation (sold separately).

Littelfuse/SymCom 777/77C Single-Phase Current & Voltage Monitors Distributors
777/77C Series

The Littelfuse/SymCom 777/ 77C is a fully programmable electronic overload relay designed to protect any motor drawing 2-800 full load amps (external CTs are required above 90 amps). The 777-HVR-SP and 77C (family of products) are for single-phase 100-240VAC applications. Common applications include conveyor systems, HVAC equipment, saws and grinders, fan motors, and almost any pumping application. All of the overload relays provide unsurpassed protection by combining overload, underload, and voltage in one package. For standalone applications, the units incorporate a 3-digit LED display that is used for programming, providing real-time operational information and displaying diagnostic codes to aid in troubleshooting a fault condition. The units also feature a communications port that can be used with communication modules listed in the 777 accessories section to form a Modbus, DeviceNet™, Profibus, or Ethernet network. Up to 99 units can be remotely monitored and controlled from a PC, PLC, or SCADA system, and data logging through a PC with the optional Solutions software. This capability allows for a simple, cost-effective way to meet new requirements for arc-flash safety.

Littelfuse/SymCom 777-ACCUPOWER 3-Phase Pump Protection Distributors
777-ACCUPOWER

The Littelfuse/SymCom 777-AccuPower is a fully-programmable 3-phase motor and pump protection relay. It allows motor hp rating, full load amps, efficiency and power factor to be entered and will accurately calculate motor output power. This is most useful with mag-drive pumps or process applications where the process power is desired over the utility power. Voltage, current and power measurements can be displayed as well as fault information and setpoints. The built-in display simplifies troubleshooting and allows the user to easily and precisely configure setpoints. The 777-AccuPower can be used with the optional COM 4-20 output module to give an analog signal proportional to output shaft power, the RS485MS-2W (for limited Modbus capabilities, and for use with the RM1000/RM2000) remote displays listed in the 777 accessories section.

Littelfuse/SymCom 777-KW/HP-P2 3-Phase Current & Voltage Monitors Distributors
777-KW/HP-P2

The Littelfuse/SymCom 777-KW/HP-P2 Series has the overload, voltage, phase loss and reversal, voltage and current unbalance, current and power monitoring*, and underload trip based on power in one package. The underpower trip feature is desirable anytime the current vs. load characteristic is non-linear or has little change. In general terms, smaller motors and slow-speed motors have little change in current over the normal load range. Larger motors that are running light loads will also show small current changes over the operating load range. For standalone applications, the units incorporate a 3-digit LED display that is used for programming, providing real-time operational information and displaying diagnostic codes to aid in troubleshooting a fault condition.

Littelfuse/SymCom 777 3-Phase Current & Voltage Monitors Distributors
777 Series

The Littelfuse/SymCom 777 is a fully programmable electronic overload relay designed to protect any motor drawing 2-800 full load amps (external CTs are required above 90 amps). The 777 (family of products) is for 3-phase 200-480VAC applications, with several specialized units for other voltage ranges and unique applications. Common applications include conveyor systems, HVAC equipment, saws and grinders, fan motors, and almost any pumping application. Some unique applications include use with a Subtrol equipped Franklin submersible motor to detect high motor temperatures and applications where a fast linear trip is required. All of the overload relays provide unsurpassed protection by combining overload, voltage, phase loss and reversal, voltage and current unbalance, power monitoring, and underload based on current in one package. For standalone applications, the units incorporate a 3-digit LED display that is used for programming, providing real-time operational information and displaying diagnostic codes to aid in troubleshooting a fault condition. The units also feature a communications port that can be used with communication modules listed in the 777 accessories section to form a Modbus, DeviceNet™, Profibus, or Ethernet network. Up to 99 units can be remotely monitored and controlled from a PC, PLC, or SCADA system, and data logging through a PC with the optional Solutions software. This capability allows for a simple, cost-effective way to meet new requirements for arc-flash safety.

Littelfuse MotorSaver MP8000 Bluetooth Overload Relays Distributors
MP8000

Littelfuse MotorSaver MP8000/MP8100 are advanced motor protection electronic overload relays, fully programmable via Bluetooth using an iPhone or Android™ smartphone or tablet with the Littelfuse App. It is easy to use and arc-flash safety is increased because the app allows settings to be modified and real-time operational information viewed. Viewing operational information and faults on the app does not require the user to open the control panel. The MP8000 protects any motor drawing 0.5-1,000 full load Amps (external CTs are required above 100 Amps). It is designed for single or 3-phase systems with operating voltages of 90-690 VAC (use of external potential transformers can extend upper voltage range above 690 VAC). Common applications include conveyor systems, HVAC equipment, saws and grinders, fan motors, and almost any pumping application.

Littelfuse Startco MPS Motor Protection System Distributors
MPS

Littelfuse Startco MPS Motor Protection System monitors voltage, current, and temperature to provide a comprehensive package of 22 protective functions. The MPS is a modular system with integrated protection, motor control, metering, and data-logging functions. This system is typically used to provide protection for three-phase low- and medium-voltage, medium-to high-horsepower induction motors.

Littelfuse MPS 469X Motor Protection Retrofit Kits Distributors
MPS 469X

The Littelfuse Startco MPS-469X Motor Protection Retrofit Kit replaces the GE Multilin 469 relay. It includes the MPS Motor Protection System and optional RTD and differential modules mounted on a panel that can be installed in the existing 469 cutout. Existing current transformer and wiring can be utilized, simplifying the upgrade procedure.

Littelfuse Startco MPU-32 Motor Protection Units Distributors
MPU-32

Littelfuse Startco MPU-32 Motor Protection Unit is used to provide current and temperature-based protection, metering, and data logging for three-phase low-voltage medium-horsepower induction motors. This relay is ideal for retrofitting and upgrading obsolete or aging motor protection using existing CTs. See the PMA Family of Panel Mount Adapter Kits to replace common obsolete relays.

Littelfuse MPU-32 X69X Motor Protection Retrofit Kits Distributors
MPU-32 X69X

The Littelfuse Startco MPU-32-X69X Motor Protection Retrofit Kit is designed to replace GE Multilin 169, 269, and 369 relays. It includes the MPU-32 Motor Protection Relay, MPU-CIM Current Input Module, and optional MPS-RTD Temperature Input Modules, which are pre-wired on a panel. The kit fits in the existing space and typically can utilize existing current transformers and wiring to simplify the upgrade procedure.

Littelfuse PGR-6100 Ground-Fault & Insulation Monitoring Relays Distributors
PGR-6100

The Littelfuse POWR-GARD PGR-6100 Ground-Fault & Insulation Relay is designed to provide basic protection for a motor, including ground fault protection and insulation monitoring. The fact that the PGR-6100 insulation monitoring relay has predictive as well as protective capabilities makes it unique. The ground-fault current and insulation resistance can be monitored using two separate meters. Two separate alarm contacts are also provided.

Littelfuse PGR-6130 Electronic Overload Relays Distributors
PGR-6130

The Littelfuse POWR-GARD PGR-6130 Electronic Overload Relay provides protection for small three-phase motors up to 1,000 Vac. Integrated CTs are for currents up to 90 A and external CTs can be used for currents above 90 A. The protective functions include overload, overtemperature, phase imbalance, phase loss, and phase sequence.

Littelfuse PGR-6150 Motor Protection System Distributors
PGR-6150

The Littelfuse POWR-GARD PGR-6150 Motor Protection System provides 13 protective functions by utilizing both current and temperature inputs. It is a modular system consisting of the control unit and an operator interface (PGR-6150-OPI). The OPI allows programming and displays metered values. The PGR-6150 is used to provide current- and temperature-based protection, metering and data logging for three-phase motors used in industrial environments. Current transformers are not required for currents up to 25 A.

Littelfuse PGR-6200 Motor Protection Units Distributors
PGR-6200

The Littelfuse POWR-GARD PGR-6200 Motor Protection Relay offers enhanced motor protection and metering to provide diagnostic and troubleshooting capabilities for critical process motors. NOTE: The PGR-6200 consists of the Motor Protection Relay and the PGA-0CIM Current Input Module (not pictured).

Littelfuse PGR-6210 Motor Protection Retrofit Kits Distributors
PGR-6210

The Littelfuse Startco PGR-6210 Motor Protection Retrofit Kit is designed to replace GE Multilin 169, 269, and 369 relays. It includes the PGR-6200 Motor Protection Relay, PGA-0CIM Current Input Module, and optional PGA-0120 Temperature Input Module pre-wired on a panel that can be installed in the existing space. The existing current transformers and wiring can be utilized, simplifying the upgrade procedure.

Littelfuse PGR-6300 Motor Protection System Distributors
PGR-6300

The Littelfuse POWR-GARD PGR-6300 Motor Protection System monitors voltage, current, and temperature to provide a comprehensive package of 22 protective functions for motor protection. The Motor Protection System is a modular system with integrated protection, motor control, metering, and datalogging functions. Motor starter control functionality is programmable for all common starter types.

Littelfuse PGR-6310 Motor Protection Retrofit Kits Distributors
PGR-6310

The Littelfuse Startco PGR-6310 Motor Protection Kit replaces the GE Multilin 469 relay. It includes the PGR-6300 Motor Protection system and optional RTD and differential modules pre-wired on a panel that can be installed in the existing 469 cutout. The kit can use the existing current transformer and wiring can be utilized, simplifying the upgrade procedure.

Littelfuse PGR-6800 Pump Protection Relays Distributors
PGR-6800

The Littelfuse POWR-GARD PGR-6800 Pump Protection Relay provides protection for pumps with three-phase motors up to 1,000 Vac. No current transformers are required for currents up to 91 A. The protective functions include overload, phase unbalance, phase loss, phase sequence and undercurrent. The PGR-6800 Pump Protection Relay is ideally suited for applications where operating without load can induce failure. Motor current is monitored and an undercurrent trip occurs when the current drops below a preset level. No additional level detectors are required.