Product Overview
The OMRON G9SE-201 is a slim, dual-channel safety relay for monitoring emergency-stop switches, safety-door switches, light curtains and other safety input devices.
It provides two instantaneous safety relay outputs and one solid-state auxiliary output. Its 17.5 mm-wide design and front-facing Push-In Plus terminals reduce control-panel space and simplify installation and maintenance.
The relay can support safety systems designed up to Performance Level e, Category 4 and SIL 3, subject to the complete circuit architecture and risk assessment. OMRON G9SE product information
Main Technical Specifications
| Specification | Details |
|---|---|
| Rated supply voltage | 24 VDC |
| Operating-voltage range | −15% to +10% of rated voltage |
| Safety input configuration | Single or dual channel |
| Instantaneous safety outputs | 2 NO safety relay contacts |
| Auxiliary output | 1 PNP transistor output |
| Auxiliary-output capacity | Maximum 100 mA DC |
| Safety contact rating | 5 A at 250 VAC or 5 A at 30 VDC, resistive load |
| AC-15 rating | 2 A at 240 VAC |
| DC-13 rating | 1.5 A at 24 VDC |
| Maximum power consumption | 3 W |
| Operating time | Maximum 100 ms |
| Safety response time | Maximum 15 ms |
| Reset modes | Automatic or manual reset |
| Feedback-loop monitoring | Supported |
| Maximum cable length | 100 m |
| Mechanical durability | Minimum 5 million operations |
| Electrical durability | Minimum 50,000 operations |
| Safety rating | PL e / Category 4 / SIL 3 |
| Module width | 17.5 mm |
| Protection rating | IP20 |
| Mounting method | DIN rail |
Technical values are taken from the official OMRON G9SE specifications.
Applicable Safety Input Devices
- Emergency-stop pushbuttons
- Safety-door interlock switches
- Mechanical safety limit switches
- Non-contact safety switches
- Safety light curtains
- Safety laser scanners
- Two-hand control arrangements, subject to circuit design
- Protective guards and access doors
Typical Marine and Industrial Applications
- Marine auxiliary machinery control panels
- Engine-room pump and compressor systems
- Hydraulic power-pack safety circuits
- Deck machinery and winch controls
- Cranes and lifting equipment
- Conveyor systems
- Packaging and processing machinery
- Automated manufacturing equipment
- Robot-cell safety circuits
- Machine retrofit and panel upgrading
Key Features
- Compact 17.5 mm-wide body
- Two instantaneous safety relay outputs
- Dual-channel safety-device monitoring
- PL e, Category 4 and SIL 3 capability
- Fast shutdown response of 15 ms or less
- Push-In Plus terminals for faster wiring
- Automatic and manual reset options
- External-device monitoring and feedback loop
- Front LED indicators for power, both inputs and output
- Suitable for emergency-stop, guard-switch and light-curtain circuits
Important Ordering Checks
Before supplying the G9SE-201 DC24, confirm:
- Required number of safety outputs
- 24 VDC control supply
- Automatic or manual reset arrangement
- Single-channel or dual-channel input
- Dry-contact or PNP safety device
- Required feedback-loop wiring
- Load current and utilization category
- Required safety certification for the installation
- New, unused unit in original OMRON packaging
