Allen-Bradley 836T-D462JX81X15 Pressure Difference Control

Allen-Bradley 836T-D462JX81X15 Electro‑Mechanical Pressure Difference Control is a two‑circuit differential‑pressure switch with stainless steel bellows and a 24 VDC red LED pilot light, built to monitor the pressure difference between two lines and activate a control circuit when the set differential is reached. This Bulletin 836T device is offered in a Type 1 enclosure suitable for industrial environments and is available with 2‑circuit standard contact blocks (with configurations for additional circuits in some versions), plus the X81 modification for a 5‑pin mini receptacle. The model ships with a standard trip/reset setting, and the family provides adjustable differential trip/reset behavior to suit pneumatic and hydraulic applications. Differential pressure ranges for 836T units span multiple configurations, commonly listed as 5–25 psi, 5–40 psi, 6–75 psi, or 24–250 psi, allowing selection to match the monitored process. The combination of stainless steel bellows and rugged enclosure, along with the built‑in pilot light and compact electrical connector, makes it well suited for tool machines, presses, and other industrial equipment where precise sensing of a pressure difference is required and the output must interface with standard control circuits.