The Omron SS-1GL-E-4-ND is a snap-action limit switch used for mechanical position feedback on automated lines — the plunger trips when a cam, guard, or actuator reaches a set point and sends a discrete signal back to the PLC or relay logic. Mounted through a panel or bracket at the moving member, it gives the control cabinet a clean, repeatable end-of-travel or interlock indication without needing a proximity sensor and target.
Sourcing posture and panel-side handling
Field-replaceable by design: a single limit switch swaps out at the bracket without disturbing the rest of the wiring duct, which is exactly the swap order a service tech wants when the line is down. The listed product category is Limit Switches, and the title row on the source ledger carries the same part number verbatim — so the BOM call-out, the panel label, and the purchase order line all key off the one string without a suffix or prefix to reconcile.