Allen-Bradley 440P-MSLB04E Limit Switch

The Allen-Bradley 440P-MSLB04E (440P-MSLB04E) is a heavy-duty industrial limit switch designed for position sensing, interlock detection, and automation control across industrial machinery and automated production lines. Built as part of the Allen-Bradley Bulletin 440P component family, this switch monitors the mechanical motion, position, and presence of moving machine parts, tooling, and safety guards. When mechanical contact or displacement occurs, the switch actuates internal contacts to transmit signaling states to programmable logic controllers, safety circuits, and industrial control architectures. Constructed for demanding factory environments, the unit provides reliable switching operation in material handling systems, packaging machinery, conveyor lines, and assembly equipment. With a catalog weight of 10 kg, the 440P-MSLB04E serves as a direct replacement component for preventive maintenance, system overhaul, and emergency repair tasks. Implementing this genuine Allen-Bradley device helps maintain operational uptime, prevents unexpected equipment stoppages, and ensures dependable electromechanical switching performance across critical industrial installations.