Type EFS is a series of power controllers designed to control temperature via electric heating elements, e.g. in ventilation systems, electric radiators, electric underfloor and ceiling heating systems or radiant heaters. EFS is particularly suitable for infinitely variable control of large power outputs, e.g. in ventilation systems where supply air temperature is accurately controlled using electric heating elements. EFS need simply be connected to an electric heating element and a temperature sensor to create a complete heating system.
EFS power controllers are sturdily designed to provide our customers with an advantageous combination of high quality, precise control and low lifecycle costs.
- Remote temperature setting
- Built-in power doubling relay
- Can be used together with an external controller
- Infinitely variable control of large power outputs
- Sturdy design
|Instructions, EFS (DA, NO, SV, EN, FR, RU, PL, DE)
File type/size:PDF ( 1,38 MB )
|Product Sheet, Controller-EFS, English
File type/size:PDF ( 651,95 kB )
|Product Catalogue, HVAC Controls and Drives, 2021, English
File type/size:PDF ( 4,20 MB )
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File type/size:- ( 41,45 MB )
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2 or 3 phased Power controller
The difference between EFS-9252 and 9253 is the number of thyrister in the unit. 9253 has 3 thyristers - and the 9252 only 2. 9253 is only used if the heat source is star connected and star point is connected to neutral.
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