Allen-Bradley 840-1BCE Pressure Switch

The Allen-Bradley 840-1BCE (840-1BCE) is an electromechanical pressure switch engineered for pressure monitoring, regulating, and safety interlocking in industrial control systems. Manufactured by Allen-Bradley, this switch functions by detecting changes in fluid or pneumatic line pressure and actuating an internal switching contact once reaching a predetermined setpoint. It provides essential feedback to automation equipment, motor starters, and programmable logic controllers, helping protect downstream equipment against overpressure or loss of pressure conditions. With a net weight of approximately 10 kg, the robust assembly is built to withstand demanding industrial plant environments and continuous operation. It can be integrated into industrial machinery, fluid power circuits, lubrication units, pneumatic networks, and process piping where accurate pressure sensing and contact operation are required. The device serves as a direct replacement component for preventive maintenance, emergency repair, or system retrofits in existing Allen-Bradley installations. Reliable mechanical construction ensures consistent cycling, dependable control response, and prolonged service life under repetitive pressure variations across automated manufacturing setups.