Allen-Bradley 836T-T351J Pressure Control Switch

The Allen-Bradley 836T-T351J is a piston-operated, T-style pressure control switch designed for traditional machine‑tool service up to 1000 psi. It offers an adjustable operating range of 140 to 1000 psi and an adjustable differential around 100 psi, with a SPDT 2‑circuit contact block for interfacing to external controls. Housed for industrial environments, it carries Type 1, 4 & 13 enclosure ratings and an IP66 protection class, and is suitable for oil and water applications. The pressure port is 3/8 in. NPTF female with SAE 7/16-20 UNF-2B thread and O-ring boss seals for secure connections. Electrical performance includes 720 VA break at 72–120 V AC and 7200 VA make at 120–600 V AC, enabling compatibility with common control circuits. The unit’s physical footprint is 88.9 mm wide, 76.7 mm deep, and 182 mm tall, designed to fit standard panel layouts. It also tolerates occasional surge pressures up to 10,000 psi, making it suitable for hydraulic or pneumatic transients, with factory configuration providing standard trip and reset points within the 140–1000 psi range.