Taihei Boeki Co., Ltd. SZ201P Pressure Switch

The Taihei Boeki SZ201P Pressure Switch is a compact, industrial‑grade mechanical switch with a piston actuator that monitors hydraulic and pneumatic system pressure and closes or opens a circuit when a preset pressure is reached, enabling automatic pressure control, equipment protection, and alarm functions. As part of the Z Series (Piston Actuator), it uses an SPDT microswitch and offers adjustable set point and differential, with an IP65‑rated metal housing for protection against dust, water, and oil. It is compatible with hydraulic oil, water, air, gas, and steam, and mounts via a threaded process connection (configuration dependent). Pressure ranges are model dependent, up to 63.5 MPa within the Z Series. Common applications include hydraulic power units, compressors, pumps, machine tools, process equipment, and factory automation where reliable pressure monitoring and switching control pumps, valves, and safety interlocks. Certifications include CE and CCC where applicable by model, and common replacements include Taihei Boeki SZ025P and SZ350P.