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professional-grade solution designed for contractors needing a reliable
OEM Compatibility: Specifically engineered for a precise fit on Lennox HVAC equipment sensing ports without the need for clamps or adhesives
Durable Construction: High-quality cast iron ensures long-term reliability
this normally closed switch prevents heat exchanger damage by interrupting the burner circuit if the plenum temperature exceeds safe operating limits
NEMA 4X Rated Protection: UL Type 4X housing provides superior resistance to corrosion and moisture in mechanical rooms or rooftop units
United Electric H400-453 Pressure Switch 320819-301 professional-grade solution designed for contractorsThe United Electric H400 453 is a heavy duty 0 20 PSI pressure switch from the 400 Series, engineered for precise threshold protection and multi output control in demanding industrial environments. Designed with a NEMA 4X enclosure made of epoxy coated diecast aluminum, this unit provides exceptional resistance to corrosion and moisture, making it ideal for pump, turbine, and compressor applications. It features a single SPDT switch output rated at
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