Allen-Bradley 836T-T255J Pressure Control 40-450 PSI

The Allen-Bradley 836T-T255J is a traditional machine-tool, T-style pressure control switch that opens or closes its SPDT, two-circuit contact block in response to hydraulic or pneumatic pressure, making it a compact, rugged overpressure control for industrial systems. It offers an adjustable operating range of 40–450 psi with an approximate 20 psi differential, and a maximum line pressure rating up to 900 psi, suitable for demanding machine-tool and fluid-power applications. Built with copper alloy bellows for durability, the unit is designed for Enclosure Type 1, 4 and 13 environments, and ships with a standard trip/reset setting (factory default) without pilot lights. Typical uses include regulating pump and valve actuation, protecting equipment from overpressure, and providing a reliable pressure-sensing element in hydraulic or pneumatic control loops.