Industrial MS4316BX Safety Interlock Switch With Indicator

MS4316BX Safety Interlock Switch With Indicator is an Omron STI door-guard interlock device designed to protect personnel by ensuring machine access doors are secured before the equipment can operate. The MS4316BX combines a robust mechanical interlock with a built-in LED indicator, delivering both physical guarding and a clear visual signal of the guard status for operators and maintenance personnel. This variant is intended for mounting on guarded enclosures where a guard must be closed to allow machine startup, and it integrates with safety circuits to enforce fail-safe control logic in conjunction with safety relays or controllers. The indicator provides immediate status feedback—typically signaling when the door is closed and the interlock is engaged—helping technicians confirm correct guarding during setup and routine operation. As part of the MS family from Omron STI, the MS4316BX reflects the lineage of compact, panel- or door-mounted interlock solutions that are commonly used on industrial equipment, presses, conveyors, and other automated lines where guarding is required. When selecting a replacement or upgrade, verify compatibility with your enclosure cutout, mounting hardware, electrical interface (contacts and wiring scheme), and the specific logic of your safety circuit to ensure correct integration and compliance with relevant safety standards.