Barksdale D1T-H18 Pressure Vacuum Actuated Switch

The Barksdale D1T-H18 Pressure Vacuum Actuated Switch is a diaphragm‑type, single‑point SPDT pressure switch in the D1T family that activates on pressure or vacuum and provides contact ratings up to 10 A at 125/250 VAC. Built with stainless‑steel wetted parts (17‑7PH / SS304) and an aluminum housing, the D1T‑H18 is designed for rugged industrial use and specifies a 0.4–18 psi actuation range for its common variant. It features SPDT contacts with typical configurations rated at 10 A at 125/250 VAC and 3 A at 480 VAC, and supports multiple electrical connections, including ST1 and ST3 harness options or a DIN EN 175301‑803 A plug on single‑point versions; performance specs include ±1% repeatability at constant temperature and a maximum switching rate of up to 20 cycles per minute.