Banner Engineering SI-LS42DMH Safety Relay Switch

SI-LS42DMH is a locking-style safety interlock switch from Banner Engineering's SI-LS42 Series, engineered to sense the closed position of guard doors and gates on industrial equipment and feed a safety input to the control system. The DMH variant represents a specific configuration in the series, built around a robust locking mechanism designed to resist inadvertent disengagement; its holding force is rated at 153 kgf, underscoring its resistance to prying or vibration. When the guard door is closed and the interlock is engaged, the device provides a safety input to compatible Banner safety controllers or relays as part of a guarded-start safety circuit. This interlock is intended for guarding applications where access doors must remain closed during operation, ensuring that a machine's safety logic transitions to a safe state if a door is opened during production. By integrating with Banner's safety ecosystem, the SI-LS42DMH offers a cohesive interlock solution that can slot into Banner's broader line of machine-safety products, helping simplify installation and diagnostics in automated systems.