The Sure-Flex Plus 6JES is specifically designed for size 6 coupling configurations used in demanding HVACR pump and compressor applications

which is critical during system startup and air-purging sequences

Designed for high-reliability performance

refer to the internal wiring diagram to ensure the heater circuit is matched to the control voltage to maintain accurate timing

you must use the Magmax (MM) series to avoid electrical damage and ensure proper magnetic actuation

Carrier HH18HA123 Switch 340793-762 The Sure-Flex Plus 6JES isThe Carrier HH18HA123 Switch is a high precision Limit Switch Assembly engineered to monitor high limit temperatures within residential and commercial HVAC systems. This genuine OEM replacement part is critical for equipment safety, designed to automatically interrupt the electrical circuit if the heat exchanger exceeds safe operating parameters. Manufactured by Klixon for Carrier, this switch features a manual reset or automatic function depending on