Array Combiner
Combiner Box
Wiring Harness
String Inverter
Micro Inverter and
Solar Shingles
Small Inverter
Central Inverter
Click on letters for application
and product details
Lift stations
Odor control systems
Storm-water pumping stations
Water tower pumps
Water wells and pumping stations
Water and Wastewater treatment plants
Odor Control Systems
Lift Stations
Storm-water pumping stations
Water tower pumps
Water wells and pumping stations
Engineered to change one ac voltage to another by magnetic induction.
Transformers
...Learn more
Regulate the timing of pump controls; for example, delaying the restart of pumps after a power loss.
Time-Delay Relays
...Learn more
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
...Learn more
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
Single or multi-channel, intrinsically safe switch for interfacing between hazardous and non-hazardous areas. Designed to handle multiple uses including pump-up/pump-down controller or switch.
Intrinsically Safe Relays
...Learn more
Sensitive ground-fault relays featuring advanced filtering will quickly and reliably detect the breakdown of insulation resistance caused by moisture, vibration, chemicals, or dust.
Ground-Fault Protection
...Learn more
Installed in new electrical gear, or easily retrofitted into existing switchgear with little or no configuration. Rapidly detect an impending arc flash and send a signal to interrupt power to protect your personnel and equipment.
Arc-Flash Relays
...Learn more
Water and Wastewater treatment plants
Littelfuse UL fuses protect your system from overload and high overcurrent. Littelfuse fuses are chosen over breakers due to their higher interrupt ratings, quicker response time, easy coordination, and no calibration required.
UL Fuses
...Learn more
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
(Safety)
(Motor and Pump Protection)
(Motor and Pump Protection)
(Motor and Pump Protection)
(Industrial Controls)
Sensitive ground-fault relays featuring advanced filtering will quickly and reliably detect the breakdown of insulation resistance caused by moisture, vibration, chemicals, or dust.
Ground-Fault Protection
...Learn more
Installed in new electrical gear, or easily retrofitted into existing switchgear with little or no configuration. Rapidly detect an impending arc flash and send a signal to interrupt power to protect your personnel and equipment.
Arc-Flash Relays
...Learn more
The SB6100 is vital anywhere people, equipment, and water are present. This product is the first ground-fault circuit interrupter (GFCI) to be listed UL 943C Standard for People Protection in three phase applications. It is the only GCFI device on the market that also monitors the continuity of the ground circuit.
Industrial Shock Block® GFCI
...Learn more
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
...Learn more
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
Regulate the timing of pump controls; for example, delaying the restart of pumps after a power loss.
Time-Delay Relays
...Learn more
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
This 5-channel pump controller handles multiple pump applications and can even act as a 5-channel switch. Supports industry standards for pump-up and pump-down configurations and can indicate low, high, and out-of-sequence alarms. Can also be used as alternating and non-alternating pump control for jockey or emergency pumps.
Pump Controllers
...Learn more
Littelfuse UL fuses protect your system from overload and high overcurrent. Littelfuse fuses are chosen over breakers due to their higher interrupt ratings, quicker response time, easy coordination, and no calibration required.
UL Fuses
...Learn more
Used to control inductive, incandescent or resistive loads, the FS100 series offers 1 A (fullwave) or a 2 A (halfwave) steady state, with a factory fixed flash rate of 75 FPM or fixed, custom flash rate ranging from 45 to 150 FPM. Ideal for applications where cost is a factor.
Flashers
...Learn more
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
(Safety)
(Motor and Pump Protection)
(Motor and Pump Protection)
(Motor and Pump Protection)
(Notification)
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
Sensitive ground-fault relays featuring advanced filtering will quickly and reliably detect the breakdown of insulation resistance caused by moisture, vibration, chemicals, or dust.
Ground-Fault Protection
...Learn more
Installed in new electrical gear, or easily retrofitted into existing switchgear with little or no configuration. Rapidly detect an impending arc flash and send a signal to interrupt power to protect your personnel and equipment.
Arc-Flash Relays
...Learn more
This 5-channel pump controller handles multiple pump applications and can even act as a 5-channel switch. Supports industry standards for pump-up and pump-down configurations and can indicate low, high, and out-of-sequence alarms. Can also be used as alternating and non-alternating pump control for jockey or emergency pumps.
Pump Controllers
...Learn more
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
...Learn more
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
Littelfuse UL fuses protect your system from overload and high overcurrent. Littelfuse fuses are chosen over breakers due to their higher interrupt ratings, quicker response time, easy coordination, and no calibration required.
UL Fuses
...Learn more
(Safety)
(Motor and Pump Protection)
(Motor and Pump Protection)
(Motor and Pump Protection)
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
...Learn more
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
(Motor and Pump Protection)
Littelfuse UL fuses protect your system from overload and high overcurrent. Littelfuse fuses are chosen over breakers due to their higher interrupt ratings, quicker response time, easy coordination, and no calibration required.
UL Fuses
...Learn more
This 5-channel pump controller handles multiple pump applications and can even act as a 5-channel switch. Supports industry standards for pump-up and pump-down configurations and can indicate low, high, and out-of-sequence alarms. Can also be used as alternating and non-alternating pump control for jockey or emergency pumps.
Pump Controllers
...Learn more
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
(Motor and Pump Protection)
(Motor and Pump Protection)
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
Engineered to change one ac voltage to another by magnetic induction.
Transformers
...Learn more
Act as an on/off switch controlled by thermostats, pushbuttons and manual interfaces, using a low current signal to switch a high current load.
Contactors
...Learn more
(Industrial Controls)
Detect the presence of conductive liquids and sense seal failures on submersible pumps.
Seal-Leak Detectors
...Learn more
Used to control inductive, incandescent or resistive loads, the FS100 series offers 1 A (fullwave) or a 2 A (halfwave) steady state, with a factory fixed flash rate of 75 FPM or fixed, custom flash rate ranging from 45 to 150 FPM. Ideal for applications where cost is a factor.
Flashers
...Learn more
(Notification)
(Industrail Controls)
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
(Safety)
(Motor and Pump Protection)
Sensitive ground-fault relays featuring advanced filtering will quickly and reliably detect the breakdown of insulation resistance caused by moisture, vibration, chemicals, or dust.
Ground-Fault Protection
...Learn more
Installed in new electrical gear, or easily retrofitted into existing switchgear with little or no configuration. Rapidly detect an impending arc flash and send a signal to interrupt power to protect your personnel and equipment.
Arc-Flash Relays
...Learn more
(Motor and Pump Protection)
Littelfuse UL fuses protect your system from overload and high overcurrent. Littelfuse fuses are chosen over breakers due to their higher interrupt ratings, quicker response time, easy coordination, and no calibration required.
UL Fuses
...Learn more
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
...Learn more
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
(Notification)
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
(Motor and Pump Protection)
Used to control inductive, incandescent or resistive loads, the FS100 series offers 1 A (fullwave) or a 2 A (halfwave) steady state, with a factory fixed flash rate of 75 FPM or fixed, custom flash rate ranging from 45 to 150 FPM. Ideal for applications where cost is a factor.
Flashers
...Learn more
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
Single or multi-channel, intrinsically safe switch for interfacing between hazardous and non-hazardous areas. Designed to handle multiple uses including pump-up/pump-down controller or switch.
Intrinsically Safe Relays
...Learn more
(Safety)
(Motor and Pump Protection)
This 5-channel pump controller handles multiple pump applications and can even act as a 5-channel switch. Supports industry standards for pump-up and pump-down configurations and can indicate low, high, and out-of-sequence alarms. Can also be used as alternating and non-alternating pump control for jockey or emergency pumps.
Pump Controllers
...Learn more
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
...Learn more
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
Littelfuse UL fuses protect your system from overload and high overcurrent. Littelfuse fuses are chosen over breakers due to their higher interrupt ratings, quicker response time, easy coordination, and no calibration required.
UL Fuses
...Learn more
Regulate the timing of pump controls; for example, delaying the restart of pumps after a power loss.
Time-Delay Relays
...Learn more
(Motor and Pump Protection)
Detect the presence of conductive liquids and sense seal failures on submersible pumps.
Seal-Leak Detectors
...Learn more
Used to control inductive, incandescent or resistive loads, the FS100 series offers 1 A (fullwave) or a 2 A (halfwave) steady state, with a factory fixed flash rate of 75 FPM or fixed, custom flash rate ranging from 45 to 150 FPM. Ideal for applications where cost is a factor.
Flashers
...Learn more
(Notification)
(Motor and Pump Protection)
Array Combiner
Combiner Box
Wiring Harness
String Inverter
Micro Inverter and
Solar Shingles
Small Inverter
Central Inverter
Click on letters for application
and product details
Odor Control Systems
Lift Stations
Storm-water pumping stations
Water tower pumps
Water wells and pumping stations
Engineered to change one ac voltage to another by magnetic induction.
Transformers
...Learn more
(Industrial Controls)
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
(Motor and Pump Protection)
Littelfuse UL fuses protect your system from overload and high overcurrent. Littelfuse fuses are chosen over breakers due to their higher interrupt ratings, quicker response time, easy coordination, and no calibration required.
UL Fuses
...Learn more
Regulate the timing of pump controls; for example, delaying the restart of pumps after a power loss.
Time-Delay Relays
...Learn more
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
(Motor and Pump Protection)
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
...Learn more
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
(Motor and Pump Protection)
Single or multi-channel, intrinsically safe switch for interfacing between hazardous and non-hazardous areas. Designed to handle multiple uses including pump-up/pump-down controller or switch.
Intrinsically Safe Relays
...Learn more
Sensitive ground-fault relays featuring advanced filtering will quickly and reliably detect the breakdown of insulation resistance caused by moisture, vibration, chemicals, or dust.
Ground-Fault Protection
...Learn more
Installed in new electrical gear, or easily retrofitted into existing switchgear with little or no configuration. Rapidly detect an impending arc flash and send a signal to interrupt power to protect your personnel and equipment.
Arc-Flash Relays
...Learn more
(Safety)
Water and Wastewater treatment plants
The SB6100 is vital anywhere people, equipment, and water are present. This product is the first ground-fault circuit interrupter (GFCI) to be listed UL 943C Standard for People Protection in three phase applications. It is the only GCFI device on the market that also monitors the continuity of the ground circuit.
Industrial Shock Block® GFCI
...Learn more
Sensitive ground-fault relays featuring advanced filtering will quickly and reliably detect the breakdown of insulation resistance caused by moisture, vibration, chemicals, or dust.
Ground-Fault Protection
...Learn more
Installed in new electrical gear, or easily retrofitted into existing switchgear with little or no configuration. Rapidly detect an impending arc flash and send a signal to interrupt power to protect your personnel and equipment.
Arc-Flash Relays
...Learn more
(Safety)
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
...Learn more
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
(Motor and Pump Protection)
Regulate the timing of pump controls; for example, delaying the restart of pumps after a power loss.
Time-Delay Relays
...Learn more
This 5-channel pump controller handles multiple pump applications and can even act as a 5-channel switch. Supports industry standards for pump-up and pump-down configurations and can indicate low, high, and out-of-sequence alarms. Can also be used as alternating and non-alternating pump control for jockey or emergency pumps.
Pump Controllers
...Learn more
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
(Motor and Pump Protection)
Used to control inductive, incandescent or resistive loads, the FS100 series offers 1 A (fullwave) or a 2 A (halfwave) steady state, with a factory fixed flash rate of 75 FPM or fixed, custom flash rate ranging from 45 to 150 FPM. Ideal for applications where cost is a factor.
Flashers
...Learn more
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
(Motor and Pump Protection)
(Notification)
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
Sensitive ground-fault relays featuring advanced filtering will quickly and reliably detect the breakdown of insulation resistance caused by moisture, vibration, chemicals, or dust.
Ground-Fault Protection
...Learn more
Installed in new electrical gear, or easily retrofitted into existing switchgear with little or no configuration. Rapidly detect an impending arc flash and send a signal to interrupt power to protect your personnel and equipment.
Arc-Flash Relays
...Learn more
(Safety)
(Motor and Pump Protection)
This 5-channel pump controller handles multiple pump applications and can even act as a 5-channel switch. Supports industry standards for pump-up and pump-down configurations and can indicate low, high, and out-of-sequence alarms. Can also be used as alternating and non-alternating pump control for jockey or emergency pumps.
Pump Controllers
...Learn more
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
(Motor and Pump Protection)
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
Littelfuse UL fuses protect your system from overload and high overcurrent. Littelfuse fuses are chosen over breakers due to their higher interrupt ratings, quicker response time, easy coordination, and no calibration required.
UL Fuses
...Learn more
(Motor and Pump Protection)
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
...Learn more
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
(Safety)
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
This 5-channel pump controller handles multiple pump applications and can even act as a 5-channel switch. Supports industry standards for pump-up and pump-down configurations and can indicate low, high, and out-of-sequence alarms. Can also be used as alternating and non-alternating pump control for jockey or emergency pumps.
Pump Controllers
...Learn more
(Motor and Pump Protection)
Act as an on/off switch controlled by thermostats, pushbuttons and manual interfaces, using a low current signal to switch a high current load.
Contactors
...Learn more
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
(Motor and Pump Protection)
Detect the presence of conductive liquids and sense seal failures on submersible pumps.
Seal-Leak Detectors
...Learn more
(Notification)
(Industrial Controls)
Used to control inductive, incandescent or resistive loads, the FS100 series offers 1 A (fullwave) or a 2 A (halfwave) steady state, with a factory fixed flash rate of 75 FPM or fixed, custom flash rate ranging from 45 to 150 FPM. Ideal for applications where cost is a factor.
Flashers
...Learn more
Engineered to change one ac voltage to another by magnetic induction.
Transformers
...Learn more
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
Sensitive ground-fault relays featuring advanced filtering will quickly and reliably detect the breakdown of insulation resistance caused by moisture, vibration, chemicals, or dust.
Ground-Fault Protection
...Learn more
Installed in new electrical gear, or easily retrofitted into existing switchgear with little or no configuration. Rapidly detect an impending arc flash and send a signal to interrupt power to protect your personnel and equipment.
Arc-Flash Relays
...Learn more
(Safety)
(Motor and Pump Protection)
Littelfuse UL fuses protect your system from overload and high overcurrent. Littelfuse fuses are chosen over breakers due to their higher interrupt ratings, quicker response time, easy coordination, and no calibration required.
UL Fuses
...Learn more
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
...Learn more
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
(Motor and Pump Protection)
(Motor and Pump Protection)
Used to control inductive, incandescent or resistive loads, the FS100 series offers 1 A (fullwave) or a 2 A (halfwave) steady state, with a factory fixed flash rate of 75 FPM or fixed, custom flash rate ranging from 45 to 150 FPM. Ideal for applications where cost is a factor.
Flashers
...Learn more
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
(Notification)
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
Single or multi-channel, intrinsically safe switch for interfacing between hazardous and non-hazardous areas. Designed to handle multiple uses including pump-up/pump-down controller or switch.
Intrinsically Safe Relays
...Learn more
(Motor and Pump Protection)
(Safety)
(Notification)
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
Regulate the timing of pump controls; for example, delaying the restart of pumps after a power loss.
Time-Delay Relays
...Learn more
(Notification)
Detect the presence of conductive liquids and sense seal failures on submersible pumps.
Seal-Leak Detectors
...Learn more
Used to control inductive, incandescent or resistive loads, the FS100 series offers 1 A (fullwave) or a 2 A (halfwave) steady state, with a factory fixed flash rate of 75 FPM or fixed, custom flash rate ranging from 45 to 150 FPM. Ideal for applications where cost is a factor.
Flashers
...Learn more
(Notification)
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
...Learn more
This 5-channel pump controller handles multiple pump applications and can even act as a 5-channel switch. Supports industry standards for pump-up and pump-down configurations and can indicate low, high, and out-of-sequence alarms. Can also be used as alternating and non-alternating pump control for jockey or emergency pumps.
Pump Controllers
...Learn more
Used to control inductive, incandescent or resistive loads, the FS100 series offers 1 A (fullwave) or a 2 A (halfwave) steady state, with a factory fixed flash rate of 75 FPM or fixed, custom flash rate ranging from 45 to 150 FPM. Ideal for applications where cost is a factor.
Flashers
...Learn more
(Notification)
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
...Learn more
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
(Motor and Pump Protection)
Regulate the timing of pump controls; for example, delaying the restart of pumps after a power loss.
Time-Delay Relays
...Learn more
This 5-channel pump controller handles multiple pump applications and can even act as a 5-channel switch. Supports industry standards for pump-up and pump-down configurations and can indicate low, high, and out-of-sequence alarms. Can also be used as alternating and non-alternating pump control for jockey or emergency pumps.
Pump Controllers
...Learn more
Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
...Learn more
(Motor and Pump Protection)
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
...Learn more
Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
...Learn more
Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
...Learn more
(Motor and Pump Protection)
The SB6100 is vital anywhere people, equipment, and water are present. This product is the first ground-fault circuit interrupter (GFCI) to be listed UL 943C Standard for People Protection in three phase applications. It is the only GCFI device on the market that also monitors the continuity of the ground circuit.
Industrial Shock Block® GFCI
...Learn more
Sensitive ground-fault relays featuring advanced filtering will quickly and reliably detect the breakdown of insulation resistance caused by moisture, vibration, chemicals, or dust.
Ground-Fault Protection
...Learn more
Installed in new electrical gear, or easily retrofitted into existing switchgear with little or no configuration. Rapidly detect an impending arc flash and send a signal to interrupt power to protect your personnel and equipment.
Arc-Flash Relays
...Learn more
(Safety)
Water wells and pumping stations
Used to control inductive, incandescent or resistive loads, the FS100 series offers 1 A (fullwave) or a 2 A (halfwave) steady state, with a factory fixed flash rate of 75 FPM or fixed, custom flash rate ranging from 45 to 150 FPM. Ideal for applications where cost is a factor.
Flashers
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(Notification)
Specially designed covers provide protection against accidental shorting between poles caused by loose wires, tools, or other conductive material. They also protect personnel from accidentally contacting energized connectors.
Power Distribution Blocks
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Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
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(Motor and Pump Protection)
Regulate the timing of pump controls; for example, delaying the restart of pumps after a power loss.
Time-Delay Relays
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This 5-channel pump controller handles multiple pump applications and can even act as a 5-channel switch. Supports industry standards for pump-up and pump-down configurations and can indicate low, high, and out-of-sequence alarms. Can also be used as alternating and non-alternating pump control for jockey or emergency pumps.
Pump Controllers
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Used to alternate between two loads and are commonly used in duplex pumping applications to balance the runtime of both pumps. The built-in debounce feature prevents the relay from changing state if the switch or float contact bounces momentarily.
Alternating Relays
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(Motor and Pump Protection)
Prevent motors from running at temperatures above approved ratings, and provide protection due to blown fuses, broken wires or worn contacts. These monitors help to prevent damaged machinery and injury of personnel.
Voltage Monitors
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Combines voltage/phase protection in addition to under/overload protection for motors. Protects motors from conditions resulting in motor windings overheating and burning insulation causing motor failure. Communications optional.
Enhanced Overload Relays
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Communicate directly with multiple MP8000 relays through the Littelfuse App on your smartphone. Monitor and control without the need to open the panel.
Bluetooth Overload Relays
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(Motor and Pump Protection)
The SB6100 is vital anywhere people, equipment, and water are present. This product is the first ground-fault circuit interrupter (GFCI) to be listed UL 943C Standard for People Protection in three phase applications. It is the only GCFI device on the market that also monitors the continuity of the ground circuit.
Industrial Shock Block® GFCI
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Sensitive ground-fault relays featuring advanced filtering will quickly and reliably detect the breakdown of insulation resistance caused by moisture, vibration, chemicals, or dust.
Ground-Fault Protection
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Installed in new electrical gear, or easily retrofitted into existing switchgear with little or no configuration. Rapidly detect an impending arc flash and send a signal to interrupt power to protect your personnel and equipment.
Arc-Flash Relays
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(Safety)
Water wells and pumping stations