USG Power Module with Class A GFCI

In large applications, thermostats can be extended with additional USG power modules.

Product regions: USA & Canada

  • GFCI

Request Product Documents FAQ


Power Module with Built-in GFCI

OJ Microline® intuitive Power Module with built-in GFCI

In large applications, UCG, UDG and UTN thermostats can be extended with additional USG power modules with built-in Class A GFCI. Output can thus be increased by 15 A per module.


  • Easy to use with no need for use of manual
  • Screw terminals for safe and easy installation
  • Multi voltage: 120 – 240 V (incl. 208 V)
  • Output relay: 15 A
  • Class A GFCI: suitable for wet room installation
  • Industrial Design:
    USA – Design Patent No. D768092
    Canada – Design Patent No. 161353

Product Documents

Product Sheets
Product Sheet, UDG / USG, English
File type/size:PDF ( 252.91 KB )
Product Sheet, UTN / USG, English-USA
File type/size:PDF ( 550.43 KB )
Product Catalogue 2024 North-America and Canada, English
File type/size:PDF ( 2.59 MB )
User Manuals
User Manual, UCG / UDG (EN-US, FR-CA, ES-MX)
File type/size:PDF ( 6.89 MB )
Instructions, UDG / UCG / UTN / USG (EN-US, FR-CA, ES-MX)
File type/size:PDF ( 368.92 KB )
Quick Guide, USG / ASG (EN-US, FR-CA, ES-MX)
File type/size:PDF ( 230.22 KB )

Product FAQ

Where to connect the ground wire of floor mats?


The ground wire in the floor mat must be connected directly to the ground wire of the supply.

What is the recommended night setback?


The recommended night setback is max 5°C/41°F

Does the adaptive function reset when making a factory reset?


Yes the adaptive function is reset during a factory reset.

Installation – Length of sensor cable


What is the maximum length of the sensor cable?


In general, it is recommended that the maximum sensor cable length should be 164 feet/50 meters, the length might be shorter. Read the instructions for the precise maximum length.

How can I cure the E2 error message?


“E2” means defective, damaged or disconnected floor sensor. Sensor resistance should be 10 or 12 kOhm at 25°C (77°F). The onstruction or quick guide holds informatiom for the specific thermostats.

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