When tractor-trailers and tanker trucks work, so does the economy. Littelfuse keeps the literal wheels of commerce turning by making overcurrent
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HD Series 300 A Heavy-Duty High-Current Latching Relays are remotely operated bistable relay disconnects designed for high-current circuits and applications that demand high performance, such as large inverter loads and high ambient temperature situations. Sealed to an IP67/IP69K rating, these heavy-duty automotive relays are built to withstand dust, water, and harsh weather, as well as environments with high shock and vibration.
The HD series bistable relays provide significant cost and weight benefits by eliminating the need to route heavy copper cables to more conveniently located mechanical-only disconnects. Cables can instead be routed directly to loads with the HD series relay positioned close to the battery or in line with the desired cable routing. Remote control of the HD latching relay can then be located in any convenient location on the vehicle with a finewire harness linking the HD relay to the control switch.
- Supports high-current continuous loads up to 300 A and intermittent loads up to 1500 A for 10 seconds
- Available with a 12 VDC coil or 24 VDC coil
- Low power consumption: Magnetically latched or electronically controlled bistable operation draws no current in the on or off position
- Remote operation eliminates long runs of heavy cable, minimizing cable complexity, cost, and vehicle weight
- Sealed to an IP67/IP69K rating for protection against dust, debris, and water ingress
- Silver alloy contacts assure the lowest voltage drop/resistance and extend cycling life
HD Series Parts
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Filters
HD Series Applications
Tractor-Trailers
Forklifts
Rely on Littelfuse to deliver circuit protection and power management solutions designed to boost the performance of electric forklifts and other
Highlights Section
- Heavy-Duty Vehicles
- Construction Vehicles
- Agricultural Equipment
- Military Vehicles
- Heavy-Duty Lifting Equipment
