Ashcroft B461S Pressure Switch

The Ashcroft B461S Pressure Switch is an industrial‑grade device that converts a defined pressure threshold into a discrete electrical signal, enabling automatic control or alarm actions in a wide range of equipment. Configured for a 100 psi range, it triggers when system pressure reaches that point, supporting straightforward shutdown, start/stop control, or signaling in process instrumentation. The unit is rated for 15 A at 125/250 VAC, allowing it to switch commonly used loads such as pumps, compressors, and hydraulic circuits without a separate interlock relay. As part of Ashcroft’s B-series family, the B461S shares the design philosophy and form factor characteristic of Ashcroft pressure switches, providing reliable operation in challenging industrial environments. Engineers often use B-series switches to translate analog pressure into a binary control input, simplifying integration with programmable logic controllers and other automation components. With its established reputation for dependable performance, the B461S offers a proven solution when a simple, mechanical switch is the desired output from a pressure-monitoring system.