Relays Brochure
Learn about the custom and off-the-shelf relays Littelfuse offers for trucks, construction and agricultural vehicles, and material handling equipment.
Link has been copied to clipboardStandard High-Current Relays
Standard high-current relays are designed for remotely switching circuits with mid- to high-current loads. These high-current solenoids are monostable relays, meaning they stay in the switched state as long as a switching signal is applied. We offer intermittent relays, which are ideal for use as starter switches, and continuous-duty relays for applications with continual run time, such as winches and hydraulic systems. You will also find both single-pole, single-throw (SPST) relays and double-pole, single-throw (DPST) relays to meet various application requirements. Most available models are normally open relays.
- Monostable relays stay in the switched state as long as a switching signal is applied
- Continuous relay and intermittent relay options for matching various duty cycle requirements
- SPST relay and DPST relay models are available
- Metal can-style solenoid and plastic-body solenoid configurations for various applications
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Frequently Asked Questions
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What are standard high-current relays?
Littelfuse standard high-current relays are common mid-to-high-current solenoid relays that are monostable, meaning they stay in the switched state as long as a switching signal is applied. These relays are rated for either continuous duty or intermittent duty.
How do standard high-current relays work?
Standard automotive high-current solenoid relays use a coil wrapped around an iron core. When the coil is energized, for example by a vehicle's ignition, it creates a magnetic field that pulls contacts together to close a circuit.