Omron G3PE-225B 12-24VDC Three-Phase SSR: Technical Guide, Applications and Installation
Industrial automation decisions are rarely reversed quickly. Choosing the Omron G3PE-225B 12-24VDC Three-Phase SSR for 3-phase heating control systems applicationsat 24V DC is the kind of decision that stays looking smart years later, when the system is still running without issues.
Many engineers working with this product also specify Omron Omron Sensor solutions on the same project. The shared ecosystem means signal levels, cable standards, and mounting accessories align across product families — a practical advantage that saves time during panel design and commissioning.
What Is the Omron G3PE-225B 12-24VDC Three-Phase SSR?
The Omron G3PE-225B 12-24VDC is a Three-Phase SSR rated at 24V DC, built to handle 3-phase heating control systems reliably over a long service life. Key engineering features include integrated heatsink, compact 3-phase design, and the unit mounts via din rail.
What separates this unit from generic alternatives is in the details: integrated heatsink, compact 3-phase design. The coil operates at 24V DC, making it straightforward to match to existing control voltage buses without additional transformers or converters.
Technical Specifications
The table below summarises the main technical parameters of the Omron G3PE-225B 12-24VDC. For full specifications, always refer to the official Omron product datasheet, as application-specific derating may apply.
| Parameter | Value |
|---|---|
| Product Type | Three-Phase SSR |
| Coil / Operating Voltage | 24V DC |
| Contacts / Channels | 3-phase |
| Contact Current | 25 A |
| Key Features | Integrated heatsink, compact 3-phase design |
| Mounting | DIN rail |
| Mechanical Lifetime | Semiconductor |
| Operating Temperature | -30 °C to +80 °C |
Where Is It Used?
The Omron G3PE-225B 12-24VDC Three-Phase SSR is commonly specified for the following applications:
- 3-phase heating control systems
- Industrial ovens
Across these use cases, the consistent thread is a need for dependable switching over a large number of operations, often in environments where an unplanned fault would create significant disruption. The Omron G3PE-225B 12-24VDC is designed with exactly those conditions in mind.
Installation Notes
Commissioning the Omron G3PE-225B 12-24VDC Three-Phase SSR is straightforward. Snap or screw it into position on the DIN rail, connect cables at the correct terminals, and confirm polarity where applicable. During the first powered test, verify that the indicator LED (where fitted) responds correctly and that the output contacts behave as expected under a controlled test load.
For ongoing maintenance, periodically inspect for contact discolouration, check terminal screws for loosening, and look for any signs of heat stress on the housing. Catching these early avoids the much larger cost of an unplanned production stop.
Why Choose the Omron G3PE-225B 12-24VDC?
The case for choosing the Omron G3PE-225B 12-24VDC Three-Phase SSR is not built on marketing alone. It rests on measurable factors: documented mechanical and electrical lifespan ratings, certifications that satisfy CE and UL requirements, and a global spare parts network that means you can source a replacement quickly when a unit eventually reaches end of life.
Frequently Asked Questions
What applications is the Omron G3PE-225B 12-24VDC designed for?
The Omron G3PE-225B 12-24VDC Three-Phase SSR is designed primarily for 3-phase heating control systems, industrial ovens. Its construction and contact ratings make it well suited to both continuous-duty and intermittent switching in these environments.
What coil voltage does the Omron G3PE-225B 12-24VDC use?
The Omron G3PE-225B 12-24VDC operates at a coil voltage of 24V DC. Always verify that your control circuit voltage matches before installation.
Does the Omron G3PE-225B 12-24VDC require a specific socket?
Yes, Omron designs its relay families to work with specific matched sockets. Using a non-specified socket can affect contact pressure and shorten service life. Refer to the Omron G3PE-225B 12-24VDC datasheet for the compatible socket model.
What certifications does the Omron G3PE-225B 12-24VDC carry?
Omron products are manufactured to CE and UL standards, with additional certifications depending on the model. Product-specific certification details are available in the official Omron datasheet and on the product label.
Where can I source the Omron G3PE-225B 12-24VDC in Europe?
The Omron G3PE-225B 12-24VDC Three-Phase SSR is available through Omron’s authorised European distributors. Purchasing through official channels ensures product authenticity, full warranty coverage, and access to technical support.

