Allen-Bradley 836T-T253E Pressure Switch

The Allen-Bradley 836T-T253E is an externally adjustable, electromechanical pressure switch from Rockwell Automation’s 836T family (Style T), engineered around a copper alloy bellows that convert pressure changes into a precise switching action suitable for harsh industrial environments. It uses a two-circuit contact block (DPDT) to switch two independent circuits as the sensed pressure crosses its setpoint, with a nominal operating range specified for 30 to 125 psi to cover medium to high-pressure applications. The switch is rated for up to 600 V AC and a maximum 5 A load, enabling direct control of pumps, compressors, valves, or other actuators in manufacturing lines, hydraulics, and pneumatics. As a Bulletin 836T device, it features externally accessible setpoint adjustment and rugged all-metal construction designed to endure vibration, temperature fluctuations, and exposure to industrial contaminants.