Review on Uxcell® JQX 12F General Purpose Power by William Sanchez

These appear to be reliable power relays, although I have not 'tested' them in the real world I bought a pair. This is a DPDT relay, each contact set (2) is rated at 30 amps. Using a pair, I developed an inexpensive alternative to running 25 amp ATV winches with dynamic braking in the fully off position. with a low-power 12V ON-OFF-ON toggle switch. "Dynamic braking" means that when the engine is off, the motor leads are shorted to prevent the winch from unwinding under load. (Typically required for 12V linear actuators). A hand-drawn diagram is also possible. It took me some time to understand. Contacts can be paralleled in pairs to pass 60 amps. THAT is a lot of amps!