OMRON D4GS-N — Safety Door Switches
Omron D4GS-N: slim safety door switch only 17 mm wide; 2 or 3 contacts, 1/3/5 m cable, IP67.
Status: In production
Brand: Omron
Product: Slim safety door switch (pre-wired cable, key-operated)
Interlock type: Type 2, low level coded (EN ISO 14119)
Width: 17 mm (three-contact models)
Contact forms: 1NC/1NO, 2NC, 2NC/1NO, 3NC
Degree of protection: IP67 (EN60947-5-1)
Omron D4GS-N is a slim safety door switch with a width of only 17 mm for the three-contact models, operated by an operation key that is sold separately. Its reversible design allows either front or rear mounting. The operation key hole has a rubber mounting that absorbs vibration and shock. The built-in switch is available with 1NC/1NO, 2NC, 2NC/1NO or 3NC contacts. The key insertion direction is horizontal or vertical, and the switch comes with a pre-wired cable of 1 m, 3 m or 5 m.
According to the datasheet, D4GS-N is a Type 2 interlocking device to EN ISO 14119 with low level coding, and its NC contacts have a direct opening mechanism certified by TÜV SÜD. The degree of protection is IP67 to EN60947-5-1. Mechanical durability is 1,000,000 operations min. and electrical durability is 100,000 operations min. at 1 A resistive load, 125 VAC. Direct opening force is 60 N min. and direct opening travel 10 mm min. The operating temperature is -30 to 70 °C, and the cable is UL2464 22 AWG.
Omron D4GS-N technical specifications
| General | |
|---|---|
| Switch type | Key-operated slim safety door switch |
| Mounting | Front or rear (reversible design) |
| Conformity | EN ISO 14119, EN60204-1, GS-ET-15 |
| Certifications | TÜV SÜD (EN60947-5-1), UL508, CSA C22.2 No. 14, CQC |
| Safety ratings | |
| Interlock type / coding level | Type 2 / low level coded (EN ISO 14119) |
| Direct opening force | 60 N min. |
| Direct opening travel | 10 mm min. |
| Electrical characteristics | |
| Rating AC-15 | 0.75 A / 240 V |
| Rating DC-13 | 0.27 A / 250 V |
| Conventional free air thermal current (Ith) | 2.5 A (EN60947-5-1) |
| Rated insulation voltage (Ui) | 250 V |
| Contact resistance | 300 / 500 / 700 mΩ max. (1 / 3 / 5 m cable) |
| Minimum applicable load | 4 mA resistive load at 24 VDC |
| Protection against electric shock | Class II (double insulation) |
| Cable | UL2464 22 AWG, outer diameter 7.2 mm |
| Mechanical and connection | |
| Mechanical durability | 1,000,000 operations min. |
| Electrical durability | 100,000 operations min. (125 VAC, 1 A resistive) |
| Operating speed | 0.1 to 0.5 m/s |
| Operating frequency | 30 operations/minute max. |
| Weight | approx. 120 g (D4GS-N1R, 1 m cable) |
| Environmental | |
| Degree of protection | IP67 (EN60947-5-1) |
| Ambient operating temperature | -30 to 70 °C (no icing) |
| Ambient operating humidity | 95% max. |
| Vibration resistance (malfunction) | 10 to 55 Hz, 0.35 mm single amplitude |
Omron D4GS-N models
| Model | Contacts | Key insertion direction | Cable length |
|---|---|---|---|
| D4GS-N1R | 1NC/1NO | Horizontal | 1 m |
| D4GS-N1R-3 | 1NC/1NO | Horizontal | 3 m |
| D4GS-N1R-5 | 1NC/1NO | Horizontal | 5 m |
| D4GS-N1T | 1NC/1NO | Vertical | 1 m |
| D4GS-N1T-3 | 1NC/1NO | Vertical | 3 m |
| D4GS-N2R | 2NC | Horizontal | 1 m |
| D4GS-N2R-3 | 2NC | Horizontal | 3 m |
| D4GS-N2T | 2NC | Vertical | 1 m |
| D4GS-N3R | 2NC/1NO | Horizontal | 1 m |
| D4GS-N3R-3 | 2NC/1NO | Horizontal | 3 m |
| D4GS-N3T-3 | 2NC/1NO | Vertical | 3 m |
| D4GS-N4R | 3NC | Horizontal | 1 m |
| D4GS-N4R-3 | 3NC | Horizontal | 3 m |
| D4GS-N4T | 3NC | Vertical | 1 m |
| D4GS-N4T-5 | 3NC | Vertical | 5 m |
Key features
- Only 17 mm wide in the three-contact models
- Reversible design for front or rear mounting
- Key hole with rubber mounting to absorb vibration and shock
- 1NC/1NO, 2NC, 2NC/1NO and 3NC contact options
- Pre-wired 1 m, 3 m and 5 m cables; IP67 protection
D4GS-N ordering codes
| Part number | Description |
|---|---|
| D4GS-N1R | 1NC/1NO, slow-action, horizontal key insertion, 1 m cable |
| D4GS-N1R-3 | 1NC/1NO, slow-action, horizontal key insertion, 3 m cable |
| D4GS-N1R-5 | 1NC/1NO, slow-action, horizontal key insertion, 5 m cable |
| D4GS-N1T | 1NC/1NO, slow-action, vertical key insertion, 1 m cable |
| D4GS-N1T-3 | 1NC/1NO, slow-action, vertical key insertion, 3 m cable |
| D4GS-N2R | 2NC, slow-action, horizontal key insertion, 1 m cable |
| D4GS-N2R-3 | 2NC, slow-action, horizontal key insertion, 3 m cable |
| D4GS-N2T | 2NC, slow-action, vertical key insertion, 1 m cable |
| D4GS-N3R | 2NC/1NO, slow-action, horizontal key insertion, 1 m cable |
| D4GS-N3R-3 | 2NC/1NO, slow-action, horizontal key insertion, 3 m cable |
| D4GS-N3T-3 | 2NC/1NO, slow-action, vertical key insertion, 3 m cable |
| D4GS-N4R | 3NC, slow-action, horizontal key insertion, 1 m cable |
| D4GS-N4R-3 | 3NC, slow-action, horizontal key insertion, 3 m cable |
| D4GS-N4T | 3NC, slow-action, vertical key insertion, 1 m cable |
| D4GS-N4T-5 | 3NC, slow-action, vertical key insertion, 5 m cable |
D4GS-N accessories
Accessories listed by the manufacturer for this product (ordered separately):
| Part number | Description |
|---|---|
| D4GS-NK1 | Operation key, horizontal mounting |
| D4GS-NK2 | Operation key, vertical mounting |
| D4GS-NK4 | Operation key, adjustable mounting (vertical upward) |
| D4GS-NK4-2 | Operation key, adjustable mounting (vertical downward) |
Other Omron Safety Door Switches
- OMRON D4NS — Safety-door switch (plastic housing, key-operated)
- OMRON D4BS — Safety-door switch (metal housing, key-operated)
- OMRON D4NL — Guard lock safety-door switch
- OMRON D4SL-N — Guard lock safety-door switch, 4/5/6 contacts
- OMRON D41L — Hygienic high-coded RFID guard lock safety door switch
- OMRON D41G — High-coded RFID guard lock safety door switch for gates
Models from other brands: Safety Door Switches
Is this safety switch right for your application?
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All product specifications are subject to change without notice. Validation of the safety function and the risk assessment remain the responsibility of the machine builder. Source: Omron, industrial.omron.eu/en/products/d4gs and model pages D4GS-N1R, D4GS-N1R-3; D4GS-N Slim Safety Door Switch datasheet (CSM_D4GS-N_DS_E_7_7, 2024.2) (accessed 25 September 2026).