Ashcroft B450B Pressure Switch

Ashcroft B450B Pressure Switch is a B-Series industrial pressure switch rated for 400 psi and designed for 125/250 VAC operation, enabling straightforward integration with standard control circuits. This model is intended for use in process control, hydraulic systems, and OEM equipment where a defined pressure threshold must trigger a relay or circuit to start, stop, or protect equipment, and it is compatible with common AC control wiring practices found in many facilities. In operation, the switch provides a pressure-activated electrical signal that allows simple interfacing with controllers, PLCs, relays, or alarm circuits, supporting straightforward integration into pumps, compressors, and pressure-relief arrangements. The B450B400 configuration identifies the 400 psi-rated variant within Ashcroft’s B-Series family, a line chosen for industrial environments where reliable pressure monitoring is essential for automation and safety.