Single/Two Phase Power Controllers

Single/Two Phase Power Controllers When applying electrical heating to air in a ventilation system or to the soccer field of a Champions League stadium, it is important, that the requested temperature is maintained as accurately as possible with as small variations in the temperature as possible.

With the complete product range of power and step controllers from OJ Electronics, this requirement can be met, as easily, as a valve is installed to control a hydronic heating system. Best of all, this can be done maintaining the system durability, which today is a natural requirement in hydronic systems.

To find out more, take a closer look at the products on these pages or contact OJ Electronics for special requirements and technical assistance.

Type EFM

The EFM is a series of power controllers for controlling small heating cables and electrical radiators. The EFM is engineered to replace solid-state relays in a large range of application, providing a more accurate and noiseless control. The EFM has been successfully installed in many residential and commercial buildings. It is primarily used within the HVAC industry for the control of electrical batteries in air handling units ensuring the precise control of the heating. It is however also applied for ceilings, floors and radiant heating etc.
The EFM series has been developed to give our costumers an advantageous combination of high quality, accurate control at any heat requirement and low life cycle costs.

  • More accurate and noiseless control
  • No excessive temperatures
  • Easy installation


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