The Omron D4GS-N4R-3 is a slim safety door switch with 3NC slow-action contacts, built for guarding access points on machinery where space is tight. The 3 m cable gives you reach to the control cabinet without a junction box. Horizontal key insertion (R-type) means the actuator enters from the side — plan the mounting orientation accordingly. Rated conventional free air thermal current (Ith) is 2.5 A per EN60947-5-1, and the conditional short-circuit current is 100 A — so the switch can handle typical control-circuit fault levels downstream of a 100 A fuse or breaker. Operating speed range is 0.1 to 0.5 m/s; outside that window the slow-action contacts may not engage cleanly. Maximum 30 operations per minute keeps the mechanical life predictable.
Omron D4GS-N4R-3 Slim Safety Door Switch, 3NC, 3m Cable
MPND4GS-N4R-3
Omron D4GS-N4R-3 Slim Safety Door Switch, 3NC slow-action contacts, 3m cable, 2.5A Ith, horizontal key insertion.
$115.00 – $119.38Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.12 Kg |
| Cable length | 3 m |
| Product type | Slim Safety Door Switch |
| Built-in switch | 4 = 3NC (slow-action) |
| Operating speed | 0.1 to 0.5 m/s |
| Operating frequency | 30 operations/minute max |
| Conditional short-circuit current | 100 A (EN60947-5-1) |
| Direction of operation key insertion | R = Horizontal |
| Conventional free air thermal current | 2.5 A (EN60947-5-1) |
Product details
Frequently asked questions
Where can I buy the D4GS-N4R-3 and get current pricing?
The D4GS-N4R-3 is available to order through independent distribution. Submit an RFQ for current pricing and availability — we confirm both at quote time.
What does the 3NC contact configuration mean for my safety circuit?
Three normally-closed contacts in series provide a redundant safety path — if any one contact fails to open, the circuit stays open. This meets the redundancy requirements for PL d / SIL 2 applications when wired correctly.
What is the operating speed range for the D4GS-N4R-3?
The operating speed is 0.1 to 0.5 m/s. Slower than 0.1 m/s may cause the slow-action contacts to hesitate; faster than 0.5 m/s risks incomplete contact transfer.
MPN
D4GS-N4R-3