Carrier HH19ZA175 Limit Switch 318820-201 typically found in 3 to

typically found in 3 to 7 section configurations

The Schneider Electric (Barber Colman) AT-603 Subbase is a precision-engineered mounting platform designed for single thermostat selector switch applications

This Model RMS replacement component operates at 120Vac (50/60 Hz) and pulls 10 Watts

Applying 24V will result in immediate coil failure

High-Temperature Durability: The Kanthol rod maintains structural integrity in environments up to 1800°F

Carrier HH19ZA175 Limit Switch 318820-201 typically found in 3 toThe Carrier HH19ZA175 Limit Switch is a critical safety component designed for precise thermal monitoring in residential and commercial HVAC equipment. Optimized for 125 VAC VDC systems, this normally closed (NC) limit actuator operates with a specific 175F open temperature and a 135F close temperature. Built as a Pro Dim high temperature switch, it effectively prevents heat exchanger damage by breaking the 24V control circuit if internal temperatures