Allen-Bradley 836-A2A Pressure Control Relay Module

Allen-Bradley 836-A2A Pressure Control Relay Module is an electromechanical pressure switch from the Bulletin 836 family, designed for general industrial use and packaged in a NEMA Type 1 enclosure (Device Style A). It features internal copper-alloy bellows and a Form C (changeover) isolated relay output, enabling reliable pressure‑triggered control of connected equipment. The model is listed with a sensing range up to 0–140 psi, suitable for automatic cut-in/cut-out control of pumps, compressors, and fluid systems. Factory-set standard trip and reset points align with the maximum operating range and minimum differential for consistent out‑of‑the‑box performance. Designed for direct panel mounting, the 836-A2A supports standard pressure-sensing connections and is used wherever precise, mechanical pressure actuation is required in industrial processes or fluid handling lines.