OMRON Relay Single-Phase Power Regulator (Heater Break Detection Series) G3PX-EH(N) G3PX Data Sheet
Summary
Precision Power Controllers engineered for industrial automation, these single-phase AC units provide advanced temperature management for resistive metal heaters. Featuring phase-control systems, soft-start functions, and vital safety detection—including open circuits and overcurrent protection—they ensure stable, highly accurate heating performance. This manual serves as a comprehensive guide detailing various controller series (EUN, EH, EC), model structure, and necessary accessories. Ideal for automation engineers and technical professionals designing or upgrading complex industrial process heating systems requiring reliability and optimal temperature regulation.
Page 1 Text Content
Power Controllers
CSM_G3PX_DS_E_2_1
Single-phase Models EUN Series AC Power Controllers with Phase-control System Allow Precise Temperature Control Models with Base-up and Soft-start Functions EH Series Phase Control System Makes It Possible to Detect Single Heater Open Circuit (EH Series) and Multiple Heater Open Circuits (EHN Series) EC Series Optimum Devices for Controlling Input Power for Pure Metal Heater, and Incorporating Overcurrent Detecting and Single Heater Open Circuit Detecting Functions OMRON’s unique design and carefully-selected materials made it possible to produce a compact and lightweight Power Controller. Replaceable, easy-to-install Power Device Cartridge assures ease of maintenance. Detecting component failures and operating errors. Certified by UL and CSA.
Refer to Safety Precautions for All Power Controllers.
Model Number Structure Model Number Legend G3PX-@@@@-@
1. Basic Model Name 5. Functions G3PX: Power Controller UN: Simple models 2. Rated Load Power Supply Voltage H: Single heater open circuit detection function 2: 100/110 VAC and 200/230 VAC HN: Multiple heater open circuit detection function 3. Rated Load Current C: Constant-current function 20: 6. CT Unit Type
Note: Refer to CT Unit on page 4.
60: 4. Number of Phases E: Single
Page Summary Contents For OMRON Relay Single-Phase Power Regulator (Heater Break Detection Series) G3PX-EH(N) G3PX Data Sheet
Manual Details
| Brand | Omron |
|---|---|
| Pages | 23 |
| File Size | 2.62 MB |
| Published | June 06, 2026 |
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Frequently Asked Questions
Which Power Controller series handles multiple open circuits?
The EHN series is designed to handle multiple heater open circuit detection.
What benefit does the replaceable Power Device Cartridge offer?
It assures ease of maintenance and troubleshooting component failures.
How can I specify long lead wires while ordering a CT Unit?
Add 'CT10' (100 cm) to the model number suffix when ordering, for example G3PX-2@0EC-CT10.
Does this controller offer a constant current function?
Yes, the EC series is designed with a Constant-current function (C series).