Omron G3PE-515B-3N 12-24VDC Three-Phase SSR (3 Neutral): Technical Guide, Applications and Installation
Picking the right component for a control panel takes more than scanning a catalogue. The Omron G3PE-515B-3N 12-24VDC is a Three-Phase SSR (3 Neutral) that has earned its place on the shortlist of engineers who value long service life over a bargain price — particularly in fully isolated 3-phase heating circuits applications.
Omron’s product range extends well beyond relays and switches. The company’s Omron Sensor portfolio covers inductive, photoelectric, and capacitive detection technologies — often integrated into the same panel alongside units like this one, creating a fully cohesive control system.
What Is the Omron G3PE-515B-3N 12-24VDC Three-Phase SSR (3 Neutral)?
The Omron G3PE-515B-3N 12-24VDC is a Three-Phase SSR (3 Neutral) rated at 24V DC, built to handle fully isolated 3-phase heating circuits reliably over a long service life. Key engineering features include triple neutral version, full 3-phase isolation, and the unit mounts via din rail.
What separates this unit from generic alternatives is in the details: triple neutral version, full 3-phase isolation. 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-515B-3N 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 (3 Neutral) |
| Coil / Operating Voltage | 24V DC |
| Contacts / Channels | 3-phase + 3 neutral |
| Contact Current | 15 A |
| Key Features | Triple neutral version, full 3-phase isolation |
| Mounting | DIN rail |
| Mechanical Lifetime | Semiconductor |
| Operating Temperature | -30 °C to +80 °C |
Where Is It Used?
The Omron G3PE-515B-3N 12-24VDC Three-Phase SSR (3 Neutral) is commonly specified for the following applications:
- Fully isolated 3-phase heating circuits
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-515B-3N 12-24VDC is designed with exactly those conditions in mind.
Installation Notes
The Omron G3PE-515B-3N 12-24VDC Three-Phase SSR (3 Neutral) 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 Choose the Omron G3PE-515B-3N 12-24VDC?
The case for choosing the Omron G3PE-515B-3N 12-24VDC Three-Phase SSR (3 Neutral) 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 is the difference between the Omron G3PE-515B-3N 12-24VDC and a mechanical contactor?
The Omron G3PE-515B-3N 12-24VDC Three-Phase SSR (3 Neutral) 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-515B-3N 12-24VDC, it offers faster switching, longer life, and a smaller footprint than a contactor.
How does temperature affect the Omron G3PE-515B-3N 12-24VDC?
Like all electromechanical devices, performance can be affected at the extremes of the operating temperature range. The Omron G3PE-515B-3N 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-515B-3N 12-24VDC units side by side on a DIN rail?
Yes. The Omron G3PE-515B-3N 12-24VDC Three-Phase SSR (3 Neutral) 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-515B-3N 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-515B-3N 12-24VDC to confirm whether this feature is available.
How long is the warranty on the Omron G3PE-515B-3N 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.