The HAT 900 series of single-pole, double-throw (SPDT) relays is now available in 40A, N.O. side and 30A N.C. side versions for high current switching applications. Being 10A higher than the ...

Called HE-R, the 35 x 58 x 47mm relay has four normally-open contacts (relay class 4a) that can switch up to 40A at an ambient temperature of +85°C. Update: A UL-compliant two(+one)-pole version was ...

I figured if I hooked the relay up to the furnace's blower control, then the humidifier could only add water when the furnace blower is on. The solenoid is 24VAC, so I'm not too worried about ...