The Barksdale HD1H-HH18SS Diaphragm Pressure Switch is a housed, single-setpoint switch engineered for precise on/off control in low-pressure systems, with an actuation range of 0.4 to 18 psi. Built around a stainless steel diaphragm (18SS), it provides reliable response in demanding environments and ships with 18 inches of leads for straightforward wiring to a control circuit. The SPDT (single‑pole double‑throw) contact configuration is rated for 10 A at 125/250 VAC, 3 A at 480 VAC, and 0.5 A at 24 VDC, and the assembly is designed for exterior or damp locations with a NEMA 4-rated enclosure.
