Finder 25a 3 phase solid state relays with heatsink sip crydom pfe380d25 a 25a pcb mounting solid state relay with a switching voltage range of 48 to 530v ac and a control voltage range of 15 to 32v dc the relay has an integrated heatsink and an scr output for use with heavy industrial loads crydom pfe380d25 solid state relay 25a 15 32vdc