Barksdale Controls CD1H-H2SS Pressure Switch

The Barksdale CD1H-H2SS Pressure Switch is a compact housed diaphragm switch with a single SPDT setpoint, designed for dependable on/off control in low‑pressure systems. It uses a 1/4" NPT female pressure port and a NEMA 4 enclosure for reliable operation in damp or dusty environments, with wiring options that include free leads about 18 inches long (16 AWG) or a 3/4"-14 NPT conduit connection for flexible installation. Electrical ratings are 10 A at 125/250 VAC and 3 A at 480 VAC, and the device employs SPDT contacts suitable for common control circuits; wetted parts consist of 304 stainless steel with a 17-7 PH stainless steel diaphragm. The pressure range spans 0.5 to 36.2 psi, with direction-dependent actuation thresholds (decreasing 0.5 to 34.6 psi; increasing 1.9 to 36 psi), making it appropriate for controlling fans, pumps, or alarms in pneumatic or hydraulic circuits. Ambient operating temperature extends from −65 to 165 F, enabling use across a broad range of industrial environments, and the unit measures roughly 4.5 in high by 4.0 in wide by 4.7 in deep, reflecting its compact, panel‑mountable housing.