High-Heat Terminals: Dual-blade terminals are engineered to minimize heat generation under heavy electrical loads

supporting both wall and duct mount configurations

ensuring reliable operation of the pilot and main gas valves

5 to 3-ton units

000 psi vacuum and pressure

Carrier HH12ZB230 Limit Switch High-Heat Terminals: Dual-blade terminals areThe Carrier HH12ZB230 Limit Switch is a critical safety component designed for precise thermal monitoring in high output furnace and air handler applications. As an OEM Carrier furnace limit switch, this device features an automatic reset mechanism and is calibrated for an opening temperature range of 190F to 230F. This part is engineered to interrupt the burner or heating element circuit if the internal plenum temperature exceeds safe operating