Allen-Bradley 836T-T252J Pressure Control Switch

The Allen-Bradley 836T-T252J Pressure Control Switch is an externally adjustable, Style T pressure switch built for industrial use. It covers a setpoint range of 6 to 75 psi and uses a copper alloy bellows for durable sensing, making it well-suited to machine-tool and hydraulic/pneumatic applications where precise pressure actuation is required. This unit features a two-circuit contact block (commonly described as 1PDT 2-Circuit), enabling independent signaling or interlock functionality within control circuits. The enclosure is rated for multiple environments, including NEMA 1, 4, and 13, allowing panel mounting in both clean and more demanding settings. As part of the 836T family, the 836T-T252J offers externals adjustment, so field calibration to the operating pressure is straightforward without disassembly. Typical uses include monitoring and controlling pressure in machine tools, hydraulic and pneumatic systems, and other industrial processes where a reliable, repeatable pressure-triggered switch is essential. This model exemplifies Rockwell Automation’s approach to robust electromechanical pressure controls, pairing a rugged copper-bellows sensing element with dependable switching to support consistent performance across standard industrial environments.