Omron G9SA-321-T075 Safety Relay Unit
The Omron G9SA-321-T075 Safety Relay Unit offers reliable machine safety with 3PST-NO main contacts, an SPST-NC auxiliary contact, and selectable 1-channel or 2-channel input. Featuring a 7.5-second OFF-delay, it supports controlled shutdown sequencing in safety circuits. The relay operates on 24 VAC/VDC or 100–240 VAC with a voltage tolerance of 85%–110% and a maximum consumption of 8.6 VA/3.3 W or 12.5 VA. With 30 ms operating time, 10 ms response, and industrial-grade vibration/shock endurance, it ensures stable operation. Manufactured by Omron and listed under Omron Relay, it belongs to the Omron G9SA Series.
| Brand | Omron |
| Product Type | Safety Relay Unit |
| Model Number | G9SA-321-T075 |
Omron G9SA-321-T075 Safety Relay Unit - Technical Specifications
| Specification | Value |
|---|---|
| Main contacts | 3PST-NO |
| Auxiliary contact | SPST-NC |
| Number of input channels | 1 channel or 2 channels possible |
| OFF-delay time | 7.5 s |
| 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. 270 g |
Built for industrial reliability, the Omron G9SA-321-T075 offers dependable performance with its 3PST-NO main contacts and a SPST-NC auxiliary contact. It supports 1 or 2 input channels and features a built-in OFF-delay time of 7.5 seconds, making it ideal for safety circuits that demand controlled shutdowns after input removal. The device is compatible with both 24 VAC/VDC and 100 to 240 VAC power supplies, functioning within 85% to 110% of the rated voltage.
Its power efficiency is backed by a maximum consumption of 8.6 VA/3.3 W at 24 VAC/VDC and 12.5 VA on higher voltages. Designed to meet rugged industrial requirements, the G9SA-321-T075 can withstand shocks up to 300 m/s² and vibrations ranging from 10 to 55 Hz with 0.75 mm double amplitude. It operates seamlessly in ambient temperatures from −25°C to 55°C and humidity conditions between 35% and 85%, ensuring long-term performance in Indian manufacturing plants.
With fast 10 ms response time, secure terminal tightening torque of 0.6 N·m, and a compact body weighing around 270 g, the Omron G9SA-321-T075 safety relay stands as a trusted solution for time-sensitive machine safety needs.
