I currently have a 40 amp version running which switches anti-sweat heaters in the fridge compartment (loading approx 20 amps at 115 volts). Depending on the ambient humidity detected by the controller, it may turn on, off, or fluctuate between the two states several times per minute throughout the day. So far it's done it with no issues, 24/7 365. Pretty impressed considering the price. This was a lot cheaper than replacing the entire controller after the original electromechanical relayβ¦