Allen-Bradley 836-C12E Inline Pressure Flow Control Switch

Allen‑Bradley 836‑C12E Inline Pressure Flow Control Switch is an electro‑mechanical pressure control device designed for inline mounting in hazardous environments, featuring an explosion‑proof enclosure rated for NEMA Type 7 and 9. This Style C Bulletin 836 switch employs an external bellows actuator (Copper Alloy, Stainless Steel Type 316) to sense process pressure and drive a two‑circuit SPST NC contact block, delivering electrical signaling when the set pressure is reached. It operates on up to 600 V supply voltage and uses a cable screw gland for connections, with control‑circuit ratings that vary by voltage (AC‑125 VA, 24–600 V; DC‑57.5 VA, 115–230 V). The unit is specified for line pressures up to 1300 psi and is built with compact dimensions of approximately 107 mm W × 138.2 mm D × 260.4 mm H, weighing about 10 lb when shipped. As part of Allen‑Bradley’s 836 pressure controls family, the 836‑C12E emphasizes inline pressure control with a rugged metal enclosure suitable for potentially explosive atmospheres, and it can be configured with standard or custom trip/reset settings. Typical applications include inline process signaling and pressure monitoring in high‑pressure industrial systems where safety classifications demand a robust, explosion‑proof switch assembly integrated into the flow path.