Allen-Bradley 836-C8S Electro Mechanical Pressure Switch

Allen-Bradley 836-C8S Electro-Mechanical Pressure Switch is a rugged industrial sensor that converts pressure into a switch action to drive control circuits. It features a 6 to 250 psi adjustable operating range and uses a 1/4 in NPTF internal pipe thread or a 3/8 in NPSF internal pipe connection for mounting and process plumbing, making it suitable for pneumatic and hydraulic systems. The unit provides a two-circuit SPST NC contact configuration with standard ratings of 5 A at 240 V AC and 3 A at 600 V AC, and control-circuit ratings up to AC-125 VA at 24–600 V, enabling reliable interfacing with common industrial controllers. The 836-C8S utilizes a Style C external copper alloy bellows actuator, a design choice that supports robust operation in demanding environments and aligns with Allen-Bradley’s Bulletin 836 pressure controls lineage. This model is commonly applied in applications such as pressure safety interlocks, pump or compressor control, and automated process monitoring where a compact, mechanically actuated switch with clear setpoints is required. As with all 836 series devices, exact enclosure options and installation specifics can vary by configuration, so verifying the mechanical fit and electrical ratings for your exact installation is recommended.