Banner Engineering SI-LS42DMH Safety Interlock Switch

The Banner SI-LS42DMH Safety Interlock Switch is a solenoid-locked interlock in Banner’s SI-LS42 family, designed to guard access to hazardous machinery with a rugged plastic interlock body. It operates from 24 V AC/DC and provides a contact configuration of 2 NC and 1 NC/1 NO, enabling reliable door monitoring and a safe stop when a guard is opened. The interlock’s enclosure measures 170 × 43 × 45 mm, and its plastic housing is rated IP67 for protection against dust and water intrusion in harsh environments. NKCR certifications are listed for this model, indicating compliance with relevant safety standards. This locking-style switch is well-suited for guard-door interlocks on conveyors, presses, and packaging lines where a positive interlock is required to prevent machine startup while a guard is open. The SI-LS42DMH model integrates with Banner’s broader SI-LS42 interlock family, offering a robust solution for safeguarding access to industrial equipment.