Omron G3PE-215B 12-24VDC Three-Phase SSR: Technical Guide, Applications and Installation
Not every datasheet tells the whole story. The Omron G3PE-215B 12-24VDC Three-Phase SSR looks straightforward on paper — 24V DC coil, standard mount — but its real value shows up six months into a demanding application like 3-phase heaters, when cheaper alternatives have already been swapped out.
In a well-designed automation system, the sensing layer and the switching layer work in close coordination. Omron’s Omron Sensor range is engineered to feed signals directly into relays and controllers from the same manufacturer, minimising compatibility concerns and simplifying system validation.
Understanding the Omron G3PE-215B 12-24VDC Three-Phase SSR
The Omron G3PE-215B 12-24VDC is a Three-Phase SSR rated at 24V DC, built to handle 3-phase heaters reliably over a long service life. Key engineering features include integrated heatsink, compact 3-phase design, and the unit mounts via din rail.
Technically, the Omron G3PE-215B 12-24VDC delivers integrated heatsink, compact 3-phase design. Matching the 24V DC control bus requires no extra hardware, which keeps commissioning time short and the panel design clean.
Core Specifications
The table below summarises the main technical parameters of the Omron G3PE-215B 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 | 15 A |
| Key Features | Integrated heatsink, compact 3-phase design |
| Mounting | DIN rail |
| Mechanical Lifetime | Semiconductor |
| Operating Temperature | -30 °C to +80 °C |
Application Scenarios
The Omron G3PE-215B 12-24VDC Three-Phase SSR is commonly specified for the following applications:
- 3-phase heaters
- Small 3-phase motors
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-215B 12-24VDC is designed with exactly those conditions in mind.
Getting It Right at Installation
The Omron G3PE-215B 12-24VDC Three-Phase SSR follows standard DIN rail mounting practice. Before inserting the unit into its socket or fixing it to the rail, always verify the circuit is fully de-energised. Check that cable cross-sections are appropriate for the load, and after commissioning, mark the panel clearly with the device type and rated voltage for future maintenance reference.
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 Engineers Choose Omron
Specifying the Omron G3PE-215B 12-24VDC Three-Phase SSR also means specifying into an ecosystem. Omron’s portfolio covers relays, sensors, PLCs, power supplies, and more — all engineered to work together. When a component does eventually need replacing, compatibility with the rest of the system is guaranteed, which is something off-brand alternatives simply cannot offer.
Frequently Asked Questions
What is the difference between the Omron G3PE-215B 12-24VDC and a mechanical contactor?
The Omron G3PE-215B 12-24VDC Three-Phase SSR is designed for panel-level signal and load switching at the current ratings specified. A contactor is built for direct motor starting at higher currents. For applications within the rated capacity of the Omron G3PE-215B 12-24VDC, it offers faster switching, longer life, and a smaller footprint than a contactor.
How does temperature affect the Omron G3PE-215B 12-24VDC?
Like all electromechanical devices, performance can be affected at the extremes of the operating temperature range. The Omron G3PE-215B 12-24VDC is rated for use across a defined ambient temperature range — consult the datasheet for precise limits and any derating requirements at elevated temperatures.
Can I mount multiple Omron G3PE-215B 12-24VDC units side by side on a DIN rail?
Yes. The Omron G3PE-215B 12-24VDC Three-Phase SSR is designed for standard DIN rail assembly with adjacent units. Ensure adequate total load current is within the rail and busbar capacity, and that enclosure ventilation is sufficient for the combined heat dissipation.
Does the Omron G3PE-215B 12-24VDC include a test facility?
Depending on the model variant, some Omron relay sockets include a manual test button or push-to-test function. Check the specific socket model specified for the Omron G3PE-215B 12-24VDC to confirm whether this feature is available.
How long is the warranty on the Omron G3PE-215B 12-24VDC?
Omron provides a standard 12-month manufacturer warranty on products purchased through authorised distributors. Extended warranty options may be available — contact your local Omron distributor for details.

