United Electric H400K-457 Pressure Switch R-134A you should always match the

you should always match the horsepower and RPM specifications of the original equipment to prevent board failure or insufficient airflow across the heat exchanger

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

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

while the polarity insensitive flame sensing circuit reduces nuisance lockouts caused by reversed line voltage

United Electric H400K-457 Pressure Switch R-134A you should always match theThe 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