Our church recently had a new engine put on our ZT mower, but the new engine is a different make and electrical setup. I need to get some of the safeties working (especially the "dead-man's switch" under the seat). Here's the problem. When the seat switch is depressed (someone sitting on the mower), the switch is closed and allowing current to flow to something. When the switch is open, it doesn't kill the mower anymore due to the differences in the control/ignition systems.
There is a terminal on the new engine that, when grounded to the frame, kills the mower.
So, I'm thinking that I can re-wire the seat switch to a relay such that when the relay is powered (switch closed due to person on seat), it opens a circuit between that terminal on the engine and the frame, but when power is lost (person gets off seat), it closes that ground circuit, killing the engine.
Does anyone know where I might find such a relay? Or at least get me pointed in the right direction with correct terminology?
I'm thinking it's NC SPST, but specs seem to be kind of thin when I search.
Thanks.