Description
The Ashcroft B424BXFM-15 is a general purpose pressure switch engineered for reliable performance in demanding industrial and commercial HVAC applications. Featuring a 0–15 PSI operating range and a Single-Pole Double-Throw (SPDT) switching action, this unit delivers precise, repeatable pressure control across a wide variety of system configurations.
Key Features
- 0–15 PSI pressure range for low-pressure monitoring and control applications
- SPDT (Single-Pole Double-Throw) switching action for versatile circuit integration
- 1/4″ NPT process connection for straightforward installation on standard piping
- Buna N (Nitrile) diaphragm seal for excellent compatibility with air, water, oils, and common refrigerants
- Watertight NEMA 4X enclosure provides protection against dust, moisture, and corrosion — suitable for indoor and outdoor installations
- FM (Factory Mutual) approved for use in safety-critical and hazardous-location applications
Construction & Design
- Rugged general-purpose housing rated to NEMA 4X for watertight and corrosion-resistant performance
- Buna N seal material resists degradation from petroleum-based fluids and common HVAC media
- Compact design simplifies panel and field installation
- SPDT output allows use as a normally open (NO) or normally closed (NC) switch depending on application requirements
Certifications & Compliance
- FM Approved — meets Factory Mutual Research standards for safety and reliability
- NEMA 4X rated enclosure — watertight, dust-tight, and corrosion-resistant
Typical Applications
- HVAC system pressure monitoring and safety cutout
- Compressor and pump protection circuits
- Industrial process control panels
- Boiler and hydronic system pressure sensing
- Refrigeration system low/high pressure control
The Ashcroft B424BXFM-15 combines proven Ashcroft pressure switch reliability with FM-approved safety credentials and a robust NEMA 4X enclosure, making it a trusted choice for contractors and engineers who require dependable pressure switching in challenging environments.
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