Te connectivity mt series 10a plug in relays general purpose te connectivity 4 1393090 9 a 10a 8 pin plug in multimode relay with dpco contacts and a 24v dc coil features a new test system with a front operated finger protected push to test button and an integral locking test tab suitable applications for this relay include plant control hvac systems etc te connectivity mt221012 dpco relay 10a 12vdc 8 pin multimode