Allen-Bradley 836T-T251JX5 Pressure Control Switch

Allen-Bradley 836T-T251JX5 Pressure Control Switch is an externally adjustable, electromechanical pressure switch from Rockwell Automation’s 836T family, designed to regulate pneumatic or hydraulic pressure in traditional machine‑tool applications and to provide a switch signal when the preset pressure is reached. For the T251 series, the nominal setpoint is around 35 psi, with external adjustment allowing precise tuning to match a machine’s operating requirements; the device is built to drive relays or PLC inputs in industrial panels, enabling pumps, valves, or actuators to respond automatically to pressure changes. This 836T model is part of Bulletin 836T pressure controls, whose repair parts catalog notes common configurations such as replacement contact blocks and bellows, reflecting a modular design that supports field servicing. Typical uses include machine tools like presses and milling machines where maintaining a specific pressure improves process control and safety.