The Omron D4GS-N3T-3 is a slim-profile safety door switch built for guarding access on machinery where panel space is tight. It carries 2NC/1NO slow-action contacts (the 3 in the order code), so you get two positively-guided normally-closed channels for the safety circuit and one normally-open for status feedback. The T suffix means vertical key insertion — the actuator enters from above, which suits hinged doors where the switch mounts on the fixed frame. That 100 A figure is the withstand, not the interrupt; it tells the panel builder what fault level the switch can ride through without welding or exploding. Operating speed range of 0.1 to 0.5 m/s and a maximum of 30 operations per minute define the mechanical duty cycle.
Fit & Integration Notes
The slim body is the headline advantage here — it fits in the same 25 mm profile as a standard limit switch but with the positive-break safety mechanism inside. Mounting on a DIN-rail adapter or directly to the panel frame via the slotted holes; the vertical key entry (T) means the actuator tongue slides in from above, which is the natural orientation for a side-hinged door where the switch sits on the top rail. Cable is 3 m, pre-wired, PVC-jacketed. No connector option on this variant — it's a hardwired tail, so plan your gland plate entry and cable routing before the panel is wired. The slow-action contacts (not snap-action) mean the switch state changes gradually with the actuator position, which is standard for safety door switches where the NC contacts must open before the door reaches the dangerous position.