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VENTS TRF-220/12-25

  • Description
  • Characteristics
  • Downloads
  • Dimensions
  • Wiring plan
  • Low-voltage step-down transformers are used in humid premises as bathroom and kitchen with low-voltage (12 V) safety requirements. 
  • TRF transformers are used to provide safe power voltage 12 V/ 50 Hz for the domestic fans not more than 16 W (25VA) with current load up to 2 A.
  • Transformer for flush mounting.
  • The transformer casing is made of plastic and supplied with a protective terminal box.
  • Electrical connection of the fan with the safe voltage 12 V is done through the output terminal block.
  • For overload protection the transformer is equipped with a replaceable melting fuse built in the input terminal board.
  • Protection rating (except terminal blocks) IP 40.
  • Transformer is designed for indoor installation in areas not subjected to high humidity and temperature influence.
  • Transformer is designed for ceiling flush mounting or recess wall mounting.
  • In case of installation into a junction box provide sufficient air ventilation to prevent the device overheating.
  • Observe the applicable fire safety requirements while installation and operation.
  • Do not install transformers above heating equipment.
Parameter TRF-220/12-25
Measurement unit
Voltage 230 V
Maximum load current 2 A
Phase 1 -
Maximum ambient temperature for the casing +40 °С
Frequency 50 Hz
Protection rating IP40 -
Max. load power, no more 16 (25 VA) -
Overall dimensions LxBxH Transformer 91х58х62
Terminal box 110х40х40
Mass 0.8 kg
Files archieve
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"TRF-220/12-25" product description 09-2015 (pdf 97.7Kb)
Download high quality image "TRF-220/12-25" (psd 968.06Kb)
"TRF-220/12-25" user's manual 06-2019 (V32EN-01) (pdf 1.37Mb)
Download image "TRF-220/12-25" for your website (png 201.25Kb)
Parameter Value Measurement unit
Wiring plan
Wiring plan


Transformer wiring diagrams

  • Q1 - external switch integrated into fixed wiring system;
  • ХТ1 - input terminal block with built-in fuse in the protecting terminal box;
  • XF1 - socket integrated into fixed wiring system;
  • XM1 - standard wall plug;
  • Т1 - transformer;
  • ХТ2 - output terminal block for connection of 12 V fan.
  • В - low voltage fan, 12 V.
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