KHS-150C Series Heatsink Panel Mount The Heat Sink is for a 1/3 phase solid state relay. The KHS heat sink is made from aluminium and is panel mounting and RoHS compliant. KHS – 150C: Thermal resistance 0.9 ºC/W Weight 560g Without a fan KHS-150CF: Thermal resistance 0.4 ºC/W Weight 830g With a fan Made from aluminium Suitable for 1/3 phase solid state relays Panel mounted I-Autoc KHS Series Heat Sink Solid State Relay Accessory