Carrier 338085-408 Limit Switch 30067439-890 Its dual-voltage capability (208-230/460V) and

Its dual-voltage capability (208-230/460V) and NEMA 56 frame design with a 7/8-inch shaft ensure it drops directly into standard mounts

ensuring a clean mating surface and proper bulb placement on the suction line is vital for accurate sensing

This is an exposed pneumatic actuator designed for indoor mechanical room environments

including rollout and high-limit switches

An open limit switch typically breaks the circuit to the gas valve

Carrier 338085-408 Limit Switch 30067439-890 Its dual-voltage capability (208-230/460V) andAs a field technician, you know that a tripped main limit switch is often the only thing standing between a standard service call and a heat exchanger failure. The Carrier 338085 408 is a factory authorized L210 20F limit switch, engineered specifically for high limit thermal protection in Carrier, Bryant, and Payne furnaces. This OEM HVAC replacement part features a normally closed circuit that opens precisely at 210F to interrupt the gas valve