Barksdale D2T-A3SS Pressure Switch 0.03-3 PSI

Barksdale D2T-A3SS is a dual-setpoint diaphragm pressure switch in a housed enclosure that monitors very low pressures, specified from 0.03 to 3 psi (gauge). It provides two SPDT switch contacts for independent high- and low-pressure thresholds, making it suitable for precise control of pneumatic lines, vacuum systems, and process control loops where tight cutoffs are required. The unit features a 1/4 in. NPT female process connection and a terminal-block housing for straightforward wiring; the enclosure is rated for NEMA 4 environments, so it can tolerate damp industrial spaces. Electrical ratings for this model are typically 10 A at 125/250 VAC and 3 A at 480 VAC, with both outputs driven by the dual setpoints. The D2T family is designed for rugged industrial use, offering compact, reliable pressure-switching with dual thresholds in a single packaged device, making it a direct fit where a small, precise, low-pressure switch is needed to actuate valves, alarms, or controllers in automation and instrumentation applications.