Ashcroft B4505 Pressure Switch

Ashcroft B4505 Pressure Switch is a compact industrial pressure switch rated for 200 psi with electrical ratings of 15 A at 125/250 VAC. As a member of Ashcroft's B-Series family, it is designed to monitor hydraulic or pneumatic systems and trigger a control circuit or alarm when the pressure reaches the switch’s setpoint. Typical applications include pump or compressor control, pressure-protection interlocks, and automated shutdown sequencing in manufacturing equipment where a defined pressure threshold must initiate an electrical signal. B-Series switches are offered with a variety of enclosure options and switch elements to suit different service conditions, and the B4505 would follow that family approach—supporting configurations appropriate for environments requiring watertight or explosion-proof housings, depending on the selected setup. For exact installation details—such as enclosure type, diaphragm material, contact arrangement (e.g., SPDT/DPDT), wiring options, and any model-specific certifications—consult the official Ashcroft B-Series specifications and datasheets on the manufacturer’s site.