OMRON G9SB — Safety Relays
Omron G9SB: slim safety relay unit; 2 safety contacts in 17.5 mm, 3 in 22.5 mm, 1 / 2 channels, auto or manual reset, 10 ms response.
Status: In production
Brand: Omron
Product: Slim safety relay unit (17.5 / 22.5 mm)
Safety contacts: DPST-NO (17.5 mm) or 3PST-NO + SPST-NC (22.5 mm)
Safety level: Certified up to PL e depending on the application (EN ISO 13849-1)
Input / reset: 1 or 2 channels; automatic or manual
Contact rating: 250 V AC 5 A, 30 V DC 5 A (resistive)
Response time: 10 ms max.
The Omron G9SB is a family of ultra-slim safety relay units: 17.5 mm wide models provide two or three safety contacts and 22.5 mm wide models three. 1-channel or 2-channel input and automatic or manual reset versions are available. Models with inverse inputs are mainly used with signals from two mechanical switches, while models with a positive common are used with a safety sensor or one mechanical switch. The units conform to EN standards (TÜV approval) and are certified up to PL e according to EN ISO 13849-1 depending on the application. DIN track mounting is possible.
Contacts are rated 250 V AC 5 A and 30 V DC 5 A resistive, with a rated carry current of 5 A. The operating time is 30 ms max. and the response time 10 ms max. Mechanical durability is 5,000,000 operations min. and electrical durability 100,000 operations min. The supply is 24 V AC/DC; the G9SB-3010 runs on 24 V DC only and cuts off power directly, without a safety input. The operating temperature is −25 to 55 °C and the degree of protection IP20. All models are 100 mm high and 112 mm deep.
Omron G9SB technical specifications
| General | |
|---|---|
| Mounting | DIN track |
| Size (H × W × D) | 100 × 17.5 × 112 mm or 100 × 22.5 × 112 mm |
| Safety ratings | |
| Safety level | Up to PL e depending on the application (EN ISO 13849-1) |
| Approval | EN standards, TÜV approval |
| Electrical characteristics | |
| Power supply voltage | 24 V AC / 24 V DC (G9SB-3010: 24 V DC) |
| Operating voltage range | 85% to 110% of rated supply voltage |
| Rated load (resistive) | 250 V AC 5 A; 30 V DC 5 A |
| Rated carry current | 5 A |
| Contact resistance | 100 mΩ |
| Isolation voltage (Ui) / impulse withstand voltage (Uimp) | 250 V AC / 4 kV |
| Dielectric strength | 2,500 V AC for 1 min |
| Outputs and indicators | |
| Operating time / response time | 30 ms max. / 10 ms max. |
| Mechanical durability | 5,000,000 operations min. (approx. 7,200 operations/h) |
| Electrical durability | 100,000 operations min. (approx. 1,800 operations/h) |
| Minimum permissible load (reference) | 5 V DC, 1 mA |
| Environmental | |
| Ambient operating temperature | −25 to 55 °C (no icing or condensation) |
| Ambient operating humidity | 35% to 85% |
| Protection class / pollution degree | IP20 / 2 |
| Vibration / shock resistance | 10 to 55 to 10 Hz, 0.375 mm single amplitude / destruction 300 m/s², malfunction 100 m/s² |
| Mechanical and connection | |
| Terminal tightening torque | 0.5 N·m |
Omron G9SB models
| Code | Main contacts | Auxiliary contact | Input channels | Reset mode | Input type | Rated voltage | Width | Power consumption | Weight |
|---|---|---|---|---|---|---|---|---|---|
| G9SB-2002-A | DPST-NO | — | 2 | Auto-reset | Inverse | 24 V AC/DC | 17.5 mm | 2.9 VA / 1.4 W max. | Approx. 115 g |
| G9SB-200-B | DPST-NO | — | 1 or 2 | Auto-reset | + common | 24 V AC/DC | 17.5 mm | 2.9 VA / 1.4 W max. | Approx. 115 g |
| G9SB-2002-C | DPST-NO | — | 2 | Manual reset | Inverse | 24 V AC/DC | 17.5 mm | 2.9 VA / 1.4 W max. | Approx. 115 g |
| G9SB-200-D | DPST-NO | — | 1 or 2 | Manual reset | + common | 24 V AC/DC | 17.5 mm | 2.9 VA / 1.4 W max. | Approx. 115 g |
| G9SB-3010 | 3PST-NO | SPST-NC | None (direct breaking) | Auto-reset | — | 24 V DC | 17.5 mm | 1.7 W max. | Approx. 135 g |
| G9SB-3012-A | 3PST-NO | SPST-NC | 2 | Auto-reset | Inverse | 24 V AC/DC | 22.5 mm | 3.6 VA / 1.7 W max. | Approx. 120 g |
| G9SB-301-B | 3PST-NO | SPST-NC | 1 or 2 | Auto-reset | + common | 24 V AC/DC | 22.5 mm | 3.6 VA / 1.7 W max. | Approx. 120 g |
| G9SB-3012-C | 3PST-NO | SPST-NC | 2 | Manual reset | Inverse | 24 V AC/DC | 22.5 mm | 3.6 VA / 1.7 W max. | Approx. 120 g |
| G9SB-301-D | 3PST-NO | SPST-NC | 1 or 2 | Manual reset | + common | 24 V AC/DC | 22.5 mm | 3.6 VA / 1.7 W max. | Approx. 120 g |
Key features
- 17.5 mm and 22.5 mm wide housings
- 1-channel and 2-channel input units
- Manual and automatic reset units
- Certification up to PL e depending on the application
- DIN track mounting
G9SB ordering codes
| Part number | Description |
|---|---|
| G9SB-2002-A | Safety relay unit, DPST-NO, 2 channels, auto-reset, inverse input, 24 V AC/DC, 17.5 mm |
| G9SB-200-B | Safety relay unit, DPST-NO, 1 or 2 channels, auto-reset, positive common input, 24 V AC/DC, 17.5 mm |
| G9SB-2002-C | Safety relay unit, DPST-NO, 2 channels, manual reset, inverse input, 24 V AC/DC, 17.5 mm |
| G9SB-200-D | Safety relay unit, DPST-NO, 1 or 2 channels, manual reset, positive common input, 24 V AC/DC, 17.5 mm |
| G9SB-3010 | Safety relay unit, 3PST-NO + SPST-NC, direct breaking (no safety input), auto-reset, 24 V DC, 17.5 mm |
| G9SB-3012-A | Safety relay unit, 3PST-NO + SPST-NC, 2 channels, auto-reset, inverse input, 24 V AC/DC, 22.5 mm |
| G9SB-301-B | Safety relay unit, 3PST-NO + SPST-NC, 1 or 2 channels, auto-reset, positive common input, 24 V AC/DC, 22.5 mm |
| G9SB-3012-C | Safety relay unit, 3PST-NO + SPST-NC, 2 channels, manual reset, inverse input, 24 V AC/DC, 22.5 mm |
| G9SB-301-D | Safety relay unit, 3PST-NO + SPST-NC, 1 or 2 channels, manual reset, positive common input, 24 V AC/DC, 22.5 mm |
Other Omron Safety Relays
- OMRON G9SE — Slim safety relay unit (17.5 / 22.5 mm, PL e)
- OMRON G9SA — Expandable safety relay unit (45 mm, PL e / Category 4)
- OMRON G9SR — Compact safety relay unit (modular, PL e / SIL 3)
- OMRON G9SX — Scalable hardwired safety controller (flexible safety unit, PL e / SIL 3)
- OMRON G7SA — Relay with forcibly guided contacts (4 / 6 poles, 6 A)
Models from other brands: Safety Relays
Is this safety relay right for your application?
Share the safety inputs to be connected (emergency stop, door switch, light curtain), the number of output contacts, the need for off-delayed outputs, the supply voltage and the required performance level (PL); let’s select the right unit together.
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/g9sb; G9SB Safety Relay Unit datasheet, CSM_G9SB_DS_E_6_7 (accessed 25 September 2026).