Omron G9SA-TH301 Safety Relay Unit
The Omron G9SA-TH301 Safety Relay Unit enhances machine protection using 3PST-NO main contacts, an SPST-NC auxiliary output, and dedicated 2-channel safety input support. Compatible with 24 VAC/VDC or 100–240 VAC, it maintains stable operation at 85%–110% rated voltage and consumes up to 8.6 VA/3.3 W or 12.5 VA. With 30 ms operating time, 10 ms response, and strong vibration/shock endurance, it ensures continuous safeguarding in industrial systems. Operating from −25 to 55°C, it withstands harsh conditions. Manufactured by Omron and classified under Omron Relay, it belongs to the Omron G9SA Series.
| Brand | Omron |
| Product Type | Safety Relay Unit |
| Model Number | G9SA-TH301 |
Omron G9SA-TH301 Safety Relay Unit - Technical Specifications
| Specification | Value |
|---|---|
| Main contacts | 3PST-NO |
| Auxiliary contact | SPST-NC |
| Number of input channels | 2 channels |
| Rated voltage | 24 VAC/VDC; 100 to 240 VAC |
| Operating voltage range | 85% to 110% of rated power supply voltage |
| Power consumption | 24 VAC/VDC: 8.6 VA/3.3 W max. 100 to 240 VAC: 12.5 VA max. |
| Contact resistance | 100 mΩ |
| Operating time | 30 ms max. |
| Response time | 10 ms max. |
| Vibration resistance | 10 to 55 to 10 Hz, 0.375-mm single amplitude (0.75-mm double amplitude) |
| Shock resistance | Destruction 300 m/s2 Malfunction 100 m/s2 |
| Ambient operating temperature | −25 to 55°C (with no icing or condensation) |
| Ambient operating humidity | 35% to 85% |
| Terminal tightening torque | 0.6 N·m |
| Weight | Approx. 210 g |
The Omron G9SA-TH301 offers a dependable safety control solution with its 3PST-NO main contacts and SPST-NC auxiliary contact. Built to handle 2 input channels, it allows seamless integration into complex safety circuits for emergency stop systems, safety sensors, and interlocks. Operating at a wide input voltage range of 24 VAC/VDC to 240 VAC, the unit remains stable within 85% to 110% of the rated voltage, accommodating varying power conditions often seen in Indian industrial setups.
Its high-speed 10 ms response time and 30 ms operating time ensure prompt action during fault conditions, minimizing risk to both machinery and personnel. The G9SA-TH301 is built to endure industrial stress with vibration resistance from 10–55 Hz and shock tolerance of up to 300 m/s². Despite its robust features, the unit maintains an efficient power footprint with a consumption of 8.6 VA/3.3 W at 24 VAC/VDC and 12.5 VA at 100–240 VAC. It functions flawlessly in ambient temperatures between −25°C and 55°C with humidity levels up to 85%.
Weighing just 210 g and offering a terminal tightening torque of 0.6 N·m, this safety relay is easy to install and maintain. Trusted by engineers across India for its durability and quick performance, the Omron G9SA-TH301 is a preferred safety component in manufacturing and processing units.
