Littelfuse, Inc. Datasheets for Electromechanical Relays
Electromechanical relays are devices that complete or interrupt a circuit by physically moving electrical contacts into contact with each other.
Electromechanical Relays: Learn more
| Product Name | Notes |
|---|---|
| 201-100-SLD is a single-channel, seal-leak detector with input voltage ac of 110–120 nominal and sensitivity at 4.7 k–100 kΩ. | |
| 460-15-100-SLD is a single-channel, seal-leak detector with input voltage ac of 110–120 nominal and sensitivity at 4.7 k–100 kΩ. | |
| 777-LR-KW/HP-P2 three-phase current and voltage monitor provides protection with input voltage from 200–480 V ac and motor full load ampere range as follows: 1–2 A (looped conductors required); 2.1–9.0 A... | |
| 777-MLR-KW/HP-P2 three-phase current and voltage monitor provides protection with input voltage from 200–480 V ac and motor full load ampere range as follows: 0.5–5 A (looped conductors required); 5–21 A... | |
| Accepts Cole Hersee relays and standard ISO relays.Modular design featuring sockets that dovetail together and Accepts standard quick-connect terminals. Sockets are constructed of rugged glass-filled polyamide with a temperature range... | |
| ALT-100-1-SW is an alternating relay with input voltage ac of 95–120 nominal and a debounce time delay (s) of 1. | |
| ALT-100-3-SW is an alternating relay with input voltage ac of 95–120 nominal and a debounce time delay (s) of 5. | |
| ALT-200-3-SW is an alternating relay with input voltage ac of 190–240 nominal and a debounce time delay (s) of 5. | |
| Bidirectional normally open output | |
| Designed for heavy-duty vehicles and large machinery, this Plastic-Body Continuous-Duty SPST Series Heavy-Duty Solenoid Relay (24812) features a 225 A continuous current rating and an insulated 12 V coil with... | |
| Designed for heavy-duty vehicles and large machinery, this Plastic-Body Continuous-Duty SPST Series Heavy-Duty Solenoid Relay (24812-01) features a 225 A continuous current rating and an insulated 12 V coil with... | |
| Designed for heavy-duty vehicles and large machinery, this Plastic-Body Continuous-Duty SPST Series Heavy-Duty Solenoid Relay (24812-01-BX) features a 225 A continuous current rating and an insulated 12 V coil with... | |
| Designed for heavy-duty vehicles and large machinery, this Plastic-Body Continuous-Duty SPST Series Heavy-Duty Solenoid Relay (24812-BX) features a 225 A continuous current rating and an insulated 12 V coil with... | |
| Designed for heavy-duty vehicles and large machinery, this Plastic-Body Continuous-Duty SPST Series Heavy-Duty Solenoid Relay (24824-01) features a 225 A continuous current rating and an insulated 24 V coil with... | |
| Designed for heavy-duty vehicles and large machinery, this Plastic-Body Continuous-Duty SPST Series Heavy-Duty Solenoid Relay (24824-01-BX) features a 225 A continuous current rating and an insulated 24 V coil with... | |
| Ideal for starting small engines in vehicles like lawn tractors, golf carts, and sweepers, this Plastic-Body Continuous-Duty SPST Series Starter Solenoid Relay (24512-10) features a 12 V insulated coil and... | |
| Ideal for starting small engines in vehicles like lawn tractors, golf carts, and sweepers, this Plastic-Body Continuous-Duty SPST Series Starter Solenoid Relay (24512-10-BX) features a 12 V insulated coil and... | |
| Ideal for starting small engines in vehicles like lawn tractors, golf carts, and sweepers, this Plastic-Body Continuous-Duty SPST Series Starter Solenoid Relay (24612) features a 12 V insulated coil and... | |
| Ideal for starting small engines in vehicles like lawn tractors, golf carts, and sweepers, this Plastic-Body Continuous-Duty SPST Series Starter Solenoid Relay (24612-10) features a 12V insulated coil and two... | |
| Ideal for starting small engines in vehicles like lawn tractors, golf carts, and sweepers, this Plastic-Body Continuous-Duty SPST Series Starter Solenoid Relay (24624-10) features a 24 V insulated coil with... | |
| Ideal for starting small engines in vehicles like lawn tractors, golf carts, and sweepers, this Plastic-Body Continuous-Duty SPST Series Starter Solenoid Relay (24624-10-BX) features a 24 V insulated coil with... | |
| Ideal for use as a lift or tarp motor relay, the 14 V Max 50 A Motor Reversing Relay Module with 12 V DC Coil (24452) can also be used... | |
| Ideal for use as a lift or tarp motor relay, the 14 V Max 50 A Motor Reversing Relay Module with 12 V DC Coil (24452-BX) can also be used... | |
| Optically isolated MOSFET-based solid state power relays in i4-PAC and ISOPLUS-264 packages feature Direct Copper Bond ceramic substrates that enable substantially lower junction-to-case thermal impedance. They are available in AC/DC... | |
| Optically isolated solid state power relays (MOSFET-based). Power SIP Packages: Pin-to-pin compatibility with other solid state relays, easy upgrade path for existing designs, compatibility for new designs.Input to Output Isolation... | |
| Optically isolated solid state power relays (MOSFET-based). Power SOIC Packages: New, low-profile SOIC package, high-current power relays, enhanced I/O isolationInput to Output Isolation up to 5000VRMS . For power applications... | |
| Our Intermittent-Duty SPST Series Solenoid Relays are available in a wide variety of configurations to meet various remote-switching and starting applications in heavy-duty trucks, buses, marine vehicles, and more. This... | |
| Our Plastic-Body Intermittent-Duty SPST Series Solenoid Relays are ideal for starting small engines in lawn tractors, golf carts, sweepers, and more.Commonly referred to as remote-acting switches, the starter solenoid models... | |
| Relays are commonly referred to as a remote-acting switches and Littelfuse manufacturers a broad range of styles to meet your application. To ensure you are utilizing the proper remote-acting switches,... | |
| Remotely operated disconnect for high-amp circuits Eliminates cost of routing heavy gauge cables to user accessible mechanical disconnect switches Bi-stable mechanism draws no current in the ON or OFF states... | |
| The 102A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-400VAC, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage setpoint and the voltage monitor... | |
| The 102A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-600VAC, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage setpoint and the voltage monitor... | |
| The 111-Insider-P provides single-phase protection for submersible pumps with an input voltage of 115 V ac and input load range from ⅓–½ hp. Its output load rating is ½ hp... | |
| The 111P is a single-phase pump monitor with an input voltage value of 115 V ac and an input load range of ⅓–1 hp. The dimensions of this unit are... | |
| The 111P-ENCL is an enclosed single-phase pump monitor with an input voltage value of 115 V ac and an input load range of ⅓–1 hp. The dimensions of this unit... | |
| The 12 V 200 A Continuous-Duty SPST Series Insulated Solenoid Relay (24213) is designed with a plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts. This model features... | |
| The 12 V 200 A Continuous-Duty SPST Series Insulated Solenoid Relay (24213-01) is designed with a plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts. This model features... | |
| The 12 V 200 A Continuous-Duty SPST Series Insulated Solenoid Relay (24213-03) is designed with a PVC-coated plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts. This model... | |
| The 12 V 65 A Continuous-Duty SPST Series Insulated Solenoid Relay (24059-08) is designed with a plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This insulated solenoid relay... | |
| The 12 V 65 A Continuous-Duty SPST Series Insulated Solenoid Relay (24117-01) is designed with a PVC-coated plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This insulated solenoid... | |
| The 201-xxx-DPDT is an 11-pin octal base plug-in voltage monitor designed to protect 3-phase motors regardless of size. The 201-100-DPDT is used on 95-120VAC, 50/60Hz motors and the 201-200-DPDT is... | |
| The 201-xxx-SP is an 8-pin octal-base, plug-in voltage monitor designed to protect single-phase motors regardless of size. The 201-100-SP is used on 95-120VAC, 50/60Hz motors to prevent damage caused by... | |
| The 201-xxx-SP-DPDT is an 8-pin octal-base, plug-in voltage monitor designed to protect single-phase motors regardless of size. The 201-100-SP-DPDT is used on 95-120VAC, 50/60Hz motors to prevent damage caused by... | |
| The 201A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage setpoint and the voltage monitor... | |
| The 201A-AU is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50/60Hz motors regardless of size. Has user adjustable 1-30 second trip delay, manual or 1-500 second restart delay,... | |
| The 202 series is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-600VAC, 50/60Hz motors regardless of size. The 202-RP monitors the phase rotation of 3-phase systems and trips on... | |
| The 202-200-SP voltage monitor is designed to protect single-phase motors regardless of size. It can be used with 190V-240VAC, 50/60Hz motors to prevent damage caused by incoming power problems. A... | |
| The 231-Insider-P provides single-phase protection for submersible pumps with an input voltage of 230 V ac and input load range from ⅓–1 hp. Its output load rating is 1 hp... | |
| The 233P pump monitor protects single-phase pumps with an input voltage value of 230 V ac, an input load range of ⅓–3 hp, and an output load rating of 3... | |
| The 233P-1.5 pump monitor protects single-phase pumps with an input voltage value of 230 V ac, an input load range of ⅓–1.5 hp, and an output load rating of 1.5... | |
| The 233P-ENCL is an enclosed single-phase pump monitor with an input voltage value of 230 V ac, an input load range of ⅓–3 hp, and an output load rating of... | |
| The 233P1.5-ENCL is an enclosed single-phase pump monitor with an input voltage value of 230 V ac, an input load range of ⅓–1.5 hp, and an output load rating of... | |
| The 235P pump monitor protects single-phase pumps with an input voltage value of 230 V ac, an input load range of 5–15 hp (external current transformer required), and the following... | |
| The 235P-ENCL is an enclosed single-phase pump monitor with an input voltage value of 230 V ac, an input load range of 5–15 hp (external current transformer required), and the... | |
| The 24 V 200 A Continuous-Duty SPST Series Insulated Solenoid Relay (24214) is designed with plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts. This model has a... | |
| The 24 V 65 A Continuous-Duty SPST Series Insulated Solenoid Relay (24063-08) is designed with a PVC-coated plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This insulated solenoid... | |
| The 250A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50*/60Hz motors regardless of size from low and high voltage, unbalance/single-pha se, and reverse-phase. The product provides a... | |
| The 250A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50/60Hz motors regardless of size from low and high voltage, unbalance/single-pha se, and reverse-phase. The product provides a... | |
| The 350 is a heavy-duty voltage monitor. This product should be used when high current relays or dual contacts are required, or 480V controls are used. Since the 350 uses... | |
| The 355 is a 3-phase voltage monitor with adjustable trip and restart delay, adjustable voltage unbalance and multiple diagnostic lights. It is perfect for heavy-duty applications that need both protection... | |
| The 36 V 85 A Continuous-Duty SPST Series Grounded Solenoid Relay (24082) is designed with plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This grounded, three-stud solenoid relay... | |
| The 36 V 85 A Continuous-Duty SPST Series Grounded Solenoid Relay (24082-BX) is designed with plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This grounded, three-stud solenoid relay... | |
| The 36 V 85 A Continuous-Duty SPST Series Grounded Solenoid Relay (24106) is designed with plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts. This model features a... | |
| The 36 V 85 A Continuous-Duty SPST Series Grounded Solenoid Relay (24124) is designed with plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This grounded, three-stud solenoid relay... | |
| The 36 V 85 A Continuous-Duty SPST Series Grounded Solenoid Relay (24124-BX) is designed with plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This grounded, three-stud solenoid relay... | |
| The 36 V 85 A Continuous-Duty SPST Series Insulated Solenoid Relay (24059) is designed with a plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This insulated solenoid features... | |
| The 36 V 85 A Continuous-Duty SPST Series Insulated Solenoid Relay (24059-15) is designed with a PVC-coated plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This insulated solenoid... | |
| The 36 V 85 A Continuous-Duty SPST Series Insulated Solenoid Relay (24063) is designed with a plated-steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This insulated solenoid features studs... | |
| The 36 V 85 A Continuous-Duty SPST Series Insulated Solenoid Relay (24080) is designed with plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This insulated solenoid features studs... | |
| The 36 V 85 A Continuous-Duty SPST Series Insulated Solenoid Relay (24080-BX) is designed with plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This individually boxed insulated solenoid... | |
| The 36 V 85 A Continuous-Duty SPST Series Insulated Solenoid Relay (24097) is designed with a plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts. This model features... | |
| The 36 V 85 A Continuous-Duty SPST Series Insulated Solenoid Relay (24107) is designed with plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts. This model features a... | |
| The 36 V 85 A Continuous-Duty SPST Series Insulated Solenoid Relay (24115) is designed with plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts. This model features a... | |
| The 36 V 85 A Continuous-Duty SPST Series Insulated Solenoid Relay (24115-BX) is designed with plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts. This individually boxed model... | |
| The 36 V 85 A Continuous-Duty SPST Series Insulated Solenoid Relay (24117) is designed with a PVC-coated plated steel housing, single-pole, single-throw (SPST) circuitry, and normally open contacts.This insulated solenoid... | |
| The 455 Series are 3-phase voltage monitors that combine load and line side monitoring to offer complete protection. Monitoring the load side will alert the user of contactor failure or... | |
| The 460 is a 3-phase voltage monitor that protects 190-480VAC or 475-600V, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage set point and the voltage... | |
| The 460-100-SP is used on 95-120VAC, 50*/60Hz single-phase motors and the 190-240VAC, 50*/60Hz single-phase motors to protect them from damaging high and low voltage conditions. An adjustment knob allows the... | |
| The 50R single-phase voltage monitor has a voltage-sensing circuit which constantly monitors the single-phase power for a low voltage condition. Single-phase motors on fans, compressors, air conditioners, heat pumps, well... | |
| The 50R-400-ALT alternating relays are used to alternate between two loads, most commonly in duplex pumping and compressor applications to balance the runtime of both loads. When used in single... | |
| The 601-CS-D-P1 3-phase power monitor is a fully programmable electronic power monitor designed to monitor 3-phase systems. The 601-CS-D-P1 has a single relay that can be configured as a general... | |
| The 777-575-HRG-P2 three-phase current and voltage monitor provides motor protection with input voltage from 500–600 V ac and motor full load ampere range of 2–20 A (looped conductors required); 20–90... | |
| The 777-575-KW/HP-P2 three-phase current and voltage monitor provides protection with input voltage from 500–600 V ac and motor full load ampere range as follows: 2–20 A (looped conductors required); 20–90... | |
| The 777-575-LR-P2 three-phase current and voltage monitor provides motor protection with input voltage from 500–600 V ac and motor full load ampere range of 1–9 A (direct); 10–800 A (external... | |
| The 777-575-P2 three-phase current and voltage monitor provides motor protection with input voltage from 500–600 V ac and motor full load ampere range as follows: 2–20 A (looped conductors required); | |
| The 777-AccuPower three-phase motor and pump relay provides protection with input voltage from 190–480 V ac and full load ampere range as follows: 2–25 A: 3-phase (looped conductors required); 25–90... | |
| The 777-FT three-phase current and voltage monitor provides motor protection with input voltage from 200–480 V ac and motor full load ampere range as follows: 2–25 A: 3-phase (looped conductors... | |
| The 777-HRG-P2 three-phase current and voltage monitor provides motor protection with input voltage from 200–480 V ac and motor full load ampere range of 2–20 A (looped conductors required); 20–90... | |
| The 777-HVR-KW/HP-P2 three-phase current and voltage monitor provides protection with input voltage from 340–480 V ac and motor full load ampere range as follows: 2–20 A (looped conductors required); 20–90... | |
| The 777-HVR-LR-P2 three-phase current and voltage monitor provides motor protection with input voltage from 340–480 V ac and motor full load ampere range of 1–9 A (direct); 10–800 A (external... | |
| The 777-HVR-P2 three-phase current and voltage monitor provides motor protection with input voltage from 340–480 V ac and full load ampere range as follows: 2–20 A (looped conductors required); 20–90... | |
| The 777-HVR-SP single-phase relay provides motor protection with input voltage from 340–480 V ac and motor full load ampere range as follows: 2–25 A (looped conductors required); 26–90 A (direct); | |
| The 777-KW/HP-P2 three-phase current and voltage monitor provides protection with input voltage from 200–480 V ac and motor full load ampere range as follows: 2–20 A (looped conductors required); 20–90... | |
| The 777-LR-P2 three-phase current and voltage monitor provides motor protection with input voltage from 200–480 V ac and motor full load ampere range of 1–9 A (direct); 10–800 A (external... | |
| The 777-LR-TS three-phase current and voltage monitor provides motor protection with input voltage from 200–480 V ac and motor full load ampere range as follows: 1–4.5 A: 3-phase (looped conductors... | |
| The 777-MV-P2 three-phase current and voltage monitor provides motor protection with input voltage from 100–240 V ac and motor full load ampere range of 10–800 A (external CTs required). | |
| The 777-P2 three-phase current and voltage monitor provides motor protection with input voltage from 200–480 V ac and motor full load ampere range as follows: 2–20 A (looped conductors required):... | |
| The 777-TS three-phase current and voltage monitor provides motor protection with input voltage from 200–480 V ac and motor full load ampere range as follows: 2–25 A: 3-phase (looped conductors... | |
| The 777VA-02 three-phase current and voltage monitor provides motor protection with input voltage from 200–480 V ac and motor full load ampere range as follows: 2–25 A: (looped conductors required); | |
| The 777VA-03 three-phase current and voltage monitor provides motor protection with input voltage from 200–480 V ac and motor full load ampere range as follows: 2–25 A: (looped conductors required); | |
| The 77C single-phase relay provides motor protection with input voltage from 100–240 V ac and motor full load ampere range as follows: 2–25 A (looped conductors required); 26–90 A (direct); | |
| The 77C-LR single-phase relay provides motor protection with input voltage from 100–240 V ac and motor full load ampere range as follows: 1.0–2.5 A (looped conductors required); 2.0–9.0 A (direct). | |
| The ALT alternating relays are used to alternate between two loads. The ALT is commonly used in duplex pumping applications to balance the runtime of both pumps. The ALT-S is... | |
| The ARP Series is used in systems where equal run time for two motors is desirable. The selector switch allows selection of alternation of either load for continuous operation. LED’s... | |
| The Continuous-Duty SPST Series 36 V 110 A Latching Solenoid Relay (24200) is designed with a plated steel housing, latched single-pole, single-throw (SPST) circuitry, and a 12 V coil.This insulated... | |
| The Continuous-Duty SPST Series 36 V 110 A Latching Solenoid Relay (24200-BX) is designed with a plated steel housing, latched single-pole, single-throw (SPST) circuitry, and a 12 V coil.This individually... | |
| The FlexMod Electronic Voltage Sensing Relay & Timer monitors both battery voltage and ignition status, shutting down non-critical loads when the cutoff voltage is reached, or at the set time... | |
| The HD Series 16 V 300 A Heavy-Duty High-Current Electronically Controlled Magnetically Latching Bistable Relay (880159) is a remotely operated bistable relay disconnect designed for high-current circuits and applications that... | |
| The HD Series 16 V 300 A Heavy-Duty High-Current Magnetically Latching Bistable Relay (880086) is a remotely operated bistable relay disconnect designed for high-current circuits and applications that demand high... | |
| The HD Series 32 V 300 A Heavy-Duty High-Current Electronically Controlled Magnetically Latching Bistable Relay (880160) is a remotely operated bistable relay disconnect designed for high-current circuits and applications that... | |
| The HD Series 32 V 300 A Heavy-Duty High-Current Magnetically Latching Bistable Relay (880088) is a remotely operated bistable relay disconnect designed for high-current circuits and applications that demand high... | |
| The Model 601 is a fully-programmable voltage monitor designed to protect 3-phase motors. It can be used as a stand-alone product or networked with an RM-1000, RM-2000, PLC, computer or... | |
| The OptoMOS ® line of Rapid Turn-On AC Power Relays utilize dual power SCR outputs and provide blocking voltages of up to 800V. The input and output circuits are optically... | |
| The OptoMOS® line of power products uses dual power SCR outputs to produce an alternative to optocoupler and Triac circuits. These switches provide a blocking voltage of up to 800V. | |
| The OptoMOS® line of solid state relays uses discrete semiconductor components and the patented OptoMOS architecture to deliver fast, reliable, bounce-free switching in a compact design. From small single-pole, 4-pin... | |
| The OptoMOS® line of solid state relays uses discrete semiconductor components and the patented OptoMOS® architecture to deliver fast, reliable, bounce-free switching in a compact design. From small single-pole, 4-pin... | |
| The single-phase 232-Insider PumpSaver® fits inside ⅓, ½, ¾, and 1 hp, 230 V Grundfos control boxes. Its input voltage is 230 V ac with an input load range of... | |
| This SD Series High-Current Bistable Relay (880107) is a double-pole, single-throw (DPST) latching relay for remote power switching applications requiring high continuous current passage, large engine starting needs, and high... |
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