Review on Adjustable AC Current Sensing Switch: SZC23 No AL-CH Model, 0.2A-30A Range by Brandon Perkins
Works as advertised.
Switch K1 & K2 terminals could be a little more rugged, but it was a great solution. I used it to turn on my inline duct fan for my bypass whole house humidifier. It activated the fan only when the humidifier water solenoid was on.
Pros
- High-power MOS tube contactless electronic switch.
Cons
- May overheat if exposed to high temperatures for extended periods
