Omron G3PE-515B-2N 12-24VDC Three-Phase SSR with Neutral: Technical Guide, Applications and Installation
The Omron G3PE-515B-2N 12-24VDC is a Three-Phase SSR with Neutral developed for engineers who understand that the cost of an unplanned stop far exceeds the cost of a quality component. Rated at 24V DC, it addresses real challenges found in 3-phase neutral-wire heating systems without overcomplicating installation or maintenance.
Omron Omron Sensor products are commonly found on the same DIN rail or in the same enclosure as this unit. The shared design philosophy — robust construction, clear indicator LEDs, standardised mounting — means a panel built with multiple Omron product families has a consistency that makes both assembly and future maintenance easier.
Understanding the Omron G3PE-515B-2N 12-24VDC Three-Phase SSR with Neutral
The Omron G3PE-515B-2N 12-24VDC is a Three-Phase SSR with Neutral rated at 24V DC, built to handle 3-phase neutral-wire heating systems reliably over a long service life. Key engineering features include neutral-wire 3-phase design, integrated heatsink, and the unit mounts via din rail.
Technically, the Omron G3PE-515B-2N 12-24VDC delivers neutral-wire 3-phase design, integrated heatsink. 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-515B-2N 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 with Neutral |
| Coil / Operating Voltage | 24V DC |
| Contacts / Channels | 3-phase + neutral |
| Contact Current | 15 A |
| Key Features | Neutral-wire 3-phase design, integrated heatsink |
| Mounting | DIN rail |
| Mechanical Lifetime | Semiconductor |
| Operating Temperature | -30 °C to +80 °C |
Application Scenarios
The Omron G3PE-515B-2N 12-24VDC Three-Phase SSR with Neutral is commonly specified for the following applications:
- 3-phase neutral-wire heating systems
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-2N 12-24VDC is designed with exactly those conditions in mind.
Getting It Right at Installation
A few installation details make a tangible difference with the Omron G3PE-515B-2N 12-24VDC Three-Phase SSR with Neutral. Using the correct Omron socket eliminates contact resistance mismatch. Leaving adequate clearance around the unit supports thermal dissipation in dense panel layouts. And ensuring terminal screw torque is within spec prevents the kind of creeping resistance that causes intermittent faults months later.
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-515B-2N 12-24VDC Three-Phase SSR with Neutral 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
How do I install the Omron G3PE-515B-2N 12-24VDC?
Mount the Omron G3PE-515B-2N 12-24VDC Three-Phase SSR with Neutral on a 35 mm DIN rail using the compatible socket or directly as specified. De-energise the circuit before installation, connect cables at the rated cross-section, and tighten terminal screws to the torque values stated in the datasheet.
What is the electrical lifespan of the Omron G3PE-515B-2N 12-24VDC?
Electrical lifespan depends on switching frequency and load type. At rated resistive load, Omron relay products typically achieve several hundred thousand to over a million operations. The exact figure for the Omron G3PE-515B-2N 12-24VDC is stated in its technical datasheet.
Can the Omron G3PE-515B-2N 12-24VDC switch inductive loads?
Yes, but inductive loads reduce contact lifespan due to higher arc energy at switch-off. For frequent inductive switching with the Omron G3PE-515B-2N 12-24VDC Three-Phase SSR with Neutral, a suppression device — such as a varistor or RC snubber — is recommended across the load.
Is the Omron G3PE-515B-2N 12-24VDC RoHS compliant?
Omron products conform to the RoHS Directive requirements. Specific compliance documentation for the Omron G3PE-515B-2N 12-24VDC can be requested from your authorised Omron distributor.
What should I check during periodic maintenance of the Omron G3PE-515B-2N 12-24VDC?
Inspect contact surfaces for pitting or discolouration, check terminal screws for loosening (particularly in high-vibration environments), and verify that the housing shows no thermal discolouration. Replace the unit if any of these signs are present.

