United Electric H400K-457 Pressure Switch R-134A the Watts LFMMVM1-US includes integral

the Watts LFMMVM1-US includes integral check valves and stainless steel inlet filter washers to prevent cross-flow between supply lines

this 2 pole 20 amp contactor handles compressor and fan motor loads with stable engagement and minimal contact wear

It operates within a wide temperature range of -26°C to 15°C (-15°F to 60°F) and utilizes an automatic reset function to ensure system continuity without manual intervention after a trip

factory authorized part engineered specifically for technical belt-drive blower applications

Rugged Construction: Features a hermetically sealed sensor and stainless steel internals for high-pressure durability up to a 2800 PSI burst rating

United Electric H400K-457 Pressure Switch R-134A the Watts LFMMVM1-US includes integralThe United Electric H400K 457 is a rugged, differential pressure switch designed for precision monitoring in HVACR and industrial process systems. Engineered with a Buna N diaphragm and an epoxy coated NEMA 4X aluminum enclosure, this unit provides high level protection against moisture and debris in demanding field environments. It features a broad adjustable pressure range of 0 to 30 PSID, allowing technicians to fine tune SPDT switch actuation