Allen-Bradley 836T-T301J Pressure Control Switch

The Allen-Bradley 836T-T301J is a T-style electro-mechanical pressure control switch built for traditional machine-tool applications, offering an adjustable operating range from 70 to 1000 psi and an adjustable differential of 75 psi. It employs a piston-type actuator (without seal) and provides independently adjustable operating range and differential with a SPDT two-circuit contact block, with a plug-type electrical connection for easy installation. The enclosure is rated for industrial use (Type 1, 4, and 13) and carries an IP66 protection rating, suitable for use in challenging environments and compatible with water and oil. The 836T-T301J uses a 3/8 in. NPTF female pressure connection, with SAE 7/16-20 UNF-2B and SAE 9/16-18 UNF-2B O-ring boss seal interfaces. Electrical ratings include 720 VA (break) at 72–120 V AC and 7200 VA (make) at 120–600 V AC, aligning with IEC AC-15 and DC-13/NEMA A600 utilization categories. The device can withstand occasional surge pressures up to 10,000 psi and operates in temperatures as low as -22 °F, with the same -22 °F rating for storage. Its compact dimensions approximate 88.9 mm wide, 76.7 mm deep, and 182 mm tall, and it is specified for a 1,000 psi maximum pressure. This model is designed for reliable pressure control in hydraulic or pneumatic circuits where precise, repeatable switching is required.