In modern industrial automation, solid state relays (SSRs) play a critical role in ensuring smooth, efficient, and reliable power switching. Among the most trusted products in this category is the Omron G3PE-235B Three-Phase Solid State Relay, a DIN-rail mounted SSR designed for heavy-duty industrial loads. If you’re in search of durability, compliance, and seamless integration, this Omron relay is worth serious consideration.
This guide will walk you through its detailed product specifications, compliance certifications, application examples, and a comprehensive datasheet summary to help you understand how the G3PE-235B fits into your automation or power control systems.
What is the Omron G3PE-235B Solid State Relay?
The Omron G3PE-235B is a three-phase, zero-cross switching SSR with a maximum load current of 35A and a control voltage range of 9.6 to 30 VDC. It is designed for DIN rail mounting and integrates seamlessly into modern industrial panels. With its phototriac coupler output, screw terminals, and SPST configuration, it ensures safe, quiet, and efficient switching for high-power applications.
For industries where resistive heating, packaging machinery, and HVAC systems are critical, this SSR provides long operational life, minimal maintenance, and compliance with global safety standards.
Key Features and Specifications
Here are the confirmed specifications of the Omron G3PE-235B:
· Rated Load Current: 35A (per phase at 25 °C)
· Load Voltage Range: 75–264 VAC (100–240 VAC nominal)
· Control Input Voltage: 9.6–30 VDC (12–24 VDC nominal)
· Minimum Load Current: 0.5 A
· Switching Type: Zero-cross
· Contact Configuration: SPST (equivalent)
· Terminal Type: Screw
· Output Device: Phototriac coupler
· Turn-On Time: ≤1 cycle (10 ms max at 50/60 Hz)
· Off-State Leakage Current: 10 mA (max at 200 VAC)
· On-State Voltage Drop: Approx. 1.6 V RMS per phase
· Operating Temperature Range: –30 °C to +80 °C
· Dimensions (WxHxD): 44.5 × 100 × 100 mm
· Weight: Approx. 400 g
These features ensure that the G3PE-235B is reliable even under challenging conditions, from industrial furnaces to food packaging lines.
For more insights on how relays compare to other automation devices, explore our Industrial Relays Collection.
Certifications and Compliance Standards
The G3PE-235B complies with international safety and quality standards, making it suitable for use worldwide. Omron designed this relay to meet:
· UL508 and CSA C22.2 No.14 approvals for North America
· EN/IEC 60947-4-3 compliance for Europe
· TÜV certification for IEC conformity
· RoHS compliance for environmental safety
These certifications not only ensure safety but also support integration into multinational projects where strict adherence to standards is mandatory.
If you’re setting up compliance-heavy systems, you may also want to check our Circuit Protection Devices that ensure safe operation alongside SSRs.
Applications of Omron G3PE-235B
The Omron G3PE-235B solid state relay is widely used in industrial heating and automation applications. Its zero-cross function makes it highly effective in managing loads with minimal electrical noise.
Common Applications:
· Industrial Ovens & Furnaces: Controls resistive heating coils for consistent temperature management.
· Plastic Molding Machines: Provides precise control of heater bands and molds.
· Food Packaging Equipment: Controls sealing bars and shrink tunnels.
· HVAC Systems: Used in controlling 3-phase heating elements.
· Conveyor Systems: Helps regulate heat-driven processes in manufacturing.
According to OMRON, A Solid State Relay (SSR) is a relay that does not have a moving contact. In terms of operation, SSRs are not very different from mechanical relays that have moving contacts. SSRs, however, employ semiconductor switching elements, such as thyristors, triacs, diodes, and transistors
For industries dealing with sensors and controllers, pairing this SSR with our Industrial Sensors Collection ensures seamless control loops.
Compatibility Considerations
While the Omron G3PE-235B is versatile, some considerations ensure optimal performance:
1. Load Type: Best for resistive loads. High inrush current loads (like tungsten lamps or some ceramic heaters) may need additional inrush limiting devices.
2. Control Source: Works directly with PLC outputs, thermostats, or process controllers.
3. Mounting: Slim 44.5 mm width makes it compatible with standard DIN rails.
4. Fusing: Fast-acting fuses recommended, sized ~1.8× the rated load current.
Why Choose Omron G3PE-235B?
1. Longevity: No moving parts, hence longer life than mechanical relays.
2. Silent Switching: Ideal for noise-sensitive environments.
3. High Compliance: Certified to global standards.
4. Compact Size: Easy DIN rail installation in crowded panels.
5. Versatility: Wide control voltage and operating temperature ranges.
Conclusion
The Omron G3PE-235B three-phase solid state relay is a powerful and reliable choice for industrial heating and automation needs. With robust certifications, a wide control voltage range, and compatibility with global standards, it ensures seamless integration into modern industrial systems.
For businesses aiming to improve system reliability, reduce downtime, and maintain compliance, investing in this SSR can be a game-changer. Pair it with the right sensors, controllers, and protective devices, and you have a complete solution for industrial power control.
