Ashcroft B424BXFMRN Pressure Switch

Ashcroft B424BXFMRN is a B-Series NEMA 4X snap‑action pressure switch designed for reliable pressure control, shutdown, and alarm signaling in industrial and OEM systems. It features a 60 psi range, with setpoints adjustable from 15% to 100% of the range and an internal locking screw to secure the chosen setting, and it supports a variety of diaphragm materials (Buna‑N, Viton, Teflon, 316L stainless steel, Monel) to match process compatibility. The enclosure is epoxy‑coated aluminum rated for NEMA 4X/IP66, and the standard pressure connection is 1/4 NPT female with 3/4 NPT female termination (optional reducing bushings available). The B-Series line offers a broad selection of switch elements, and options include UL, FM, CE, CSA, and NSF‑61 approvals, with SIL3 capability on certain models. Typical applications include pumps, compressors, boilers and burners, and other hydraulic and industrial systems requiring precise differential/pressure control and reliable tripping behavior across a range of temperatures and media.