Barksdale E1H-H250-Q13 Pressure Vacuum Switch

The Barksdale E1H-H250-Q13 Pressure Vacuum Switch is a housed, diaphragm-seal piston mechanical switch in the Econ‑O‑Trol family that provides a positive setpoint range of 10 to 250 psi and is designed for both pressure and vacuum control in industrial systems. This SPDT, single‑circuit switch uses a Buna‑N diaphragm/O‑ring seal and is rated for up to 10 A at 125/250 VAC and 3 A at 480 VAC, making it suitable for energizing relays or control circuits in equipment such as compressors, boilers, and other pneumatic systems. The housed configuration offers protection at NEMA 4 and IP65 levels, helping it withstand dust, washdown, and moisture in harsh environments, while a compact 1.78 lb body eases installation. The E1H‑H250‑Q13 is part of Barksdale’s Econ‑O‑Trol line and is intended for reliable, field-set pressure switching with a 10–250 psi positive‑pressure range; it is commonly used where precise on/off control of pressure and vacuum is required. Note that this specific model has been discontinued by the manufacturer, so sourcing may rely on remaining stock or suitable alternatives within the E1S/E1H family. In sum, the E1H series delivers rugged mechanical switching for applications needing a robust, single‑point pressure switch with built‑in versatility for vacuum‑related controls, without resorting to electronic sensing.