Static 4PP-K5-N4-B1A-3-50 Pressure Switch

Static/SOR 4PP-K5-N4-B1A-3-50 Pressure Switch is a weatherproof electromechanical switch in the Series K5 family designed to trigger at a precise pressure threshold in pneumatic and hydraulic systems. It offers an adjustable setpoint range of 3 to 50 psi and uses a 1/4" NPT pressure port (F) for straightforward piping connections. The unit features an aluminum B1A housing and is built for non-hazardous, damp environments, with weatherproof variants rated for NEMA 4/4X (IP65) service. A static O-ring seal at the pressure port supports leak-tight operation across cycles. Typical 3–50 psi weatherproof configurations in this family exhibit a modest dead-band, enabling tight control for start/stop actions in applications such as compressors, pumps, and process lines. The compact 4PP-K5-N4-B1A-3-50 design integrates with standard control relays and PLC logic, delivering a reliable pressure-switch solution for industrial automation where a 3–50 psi actuation point is required.