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Electrical Battery Disconnect Switches

An electrical battery disconnect switch (also known as a remote battery disconnect switch, remote battery cutoff switch, or remote battery kill switch) is an electromagnetic relay battery disconnect that uses the ignition or a switch in the cabin to activate the opening or closing of the contacts. Our electrical battery disconnect switches have either double-pole or single-pole circuitry, and most are bi-stable relays. Many are waterproof, and some are designed for ADR (Accord Dangereux Routier) applications. Our electrical disconnect switches can also be used as power relays for devices with high current consumption.
  • Continuous current ratings of 150 A to 500 A
  • Available with single-pole, single-throw (SPST) or double-pole, single throw (DPST) circuitry
  • Ingress Protection (IP) ratings from IP65 to IP67/IP69K
  • Versions are available for ADR (Accord Dangereux Routier) applications
  • Options with time delay or programmable time delay features
  • Remotely disconnects the battery from a vehicle's electical system
  • Prevents battery drain
  • Safeguards against thermal events in accidents

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Frequently Asked Questions

What are electrical battery disconnect switches?

Electrical battery disconnect switches are electromagnetic relays that remotely disconnect a battery from a vehicle's electrical system to prevent battery drain and safeguard against potentially dangerous thermal events. They can also used as power relays for devices with high current consumption.

How do electrical battery disconnect switches work?

Activated by the ignition or a switch in the cabin, electrical disconnect switches remotely disconnect the battery from a vehicle's electrical system. Typically, electrical battery disconnect switches are latching relays (also known as bi-stable relays), which latch in the ON or OFF state, consuming no power until it receives electrical stimuli to change states. They