Threshold S/300 STASIS problem with on off swicht

For some reasons Thresholds have had a history of off/on switches problems. I had a 400 A and that's how i leaned to solder. They would supply the the switch. My 4000 has been modified so the switch can be done with spades.

When I bought my Threshold s/500 in 1979 (?) the switch was always pretty sloppy. But it worked for fifteen year. Not surprising some may have failed. 

It’s a circuit breaker.

@unsound

You are right... that is what it felt like. It was sloppy, then flipped very solidly. I never thought of that.