Hongfa hfe7 10a subminiature pcb mount relays intermediate power 1no 1nc hongfa hfe7024 1hdst a subminiature pcb power relays with a 24v dc coil voltage switching capacity of 10a and a 1no 1nc single side stable contact configuration hongfa hfe7024 1hdst pcb relay 24v dc 1no 1nc contacts single side stable