Ashcroft B420T Pressure Switch NEMA 4X 125-250 VAC 15A 1/4 in NPT

The Ashcroft B420T pressure switch is a NEMA 4X‑rated mechanical switch designed for reliable pressure‑based control in harsh environments. It is rated for 15 A at 125/250 VAC and uses a standard 1/4" NPT process connection (female) for straightforward installation on common piping or hydraulic lines. As part of Ashcroft's B-Series, the B420T shares the rugged enclosure and general‑purpose switching capability that supports control, alarm, or shutdown tasks in industrial systems. The enclosure provides protection against moisture, dust, and washdown conditions typical of factory floors, making it suitable for pumps, compressors, boilers, and other equipment where a pressure threshold must actuate a relay or controller. With a compact 1/4" NPT connection and a proven 125/250 VAC, 15 A rating, the B420T offers a dependable, drop‑in solution for monitoring and regulating system pressure in demanding environments.