Autotransformer TLR 3120B 12A

393.00 354.00 exc. VAT

Variable three-phase autotransformer

Option Without TK protection

Transformer speed controllers applicable to voltage-controllable motors to control the rotational speed.

1 in stock


Autotransformers three-phase TLR 3120B 12A

Option Without TK protection

Autotransformer regulators serve the purpose of airflow control, fitted in three-phase ventilation and heating systems.

Transformer speed controllers are based on the principle of voltage control with auto-transformers.
They are applicable to voltage-controllable motors to control the rotational speed.

Specifications of three phase auto transformer:

  • Input: 400V – 50/60 Hz  – 12A
  • Indicator lamp
  • Connection by terminal blocks
  • Switch: 5 positions with an Off-position
  • Steel Housing
  • Enclosure IP44
  • Maximal ambient temperature: 35 °C
  • Output voltage: from 0 to 400V
  • Dimensions: 57 x 35 x 29 cm
  • Weight: 50 Kg

Advantages of three phase variable auto transformer:

  • 5 steps speed
  • Special for ventilation systems
  • High quality and low price
  • Easy installation

CE Standard for auto transformer:  

  • According to the European Standards
  • EMC 2004/108/CE and Low Voltage norm 2006/95/CE
  • RoHS compliant

Three-phase autotransformer TLR 315 1,5A

Variable autotransformers TLR 335 3,5A

Autotransformers three-phase TLR 350B 5A

Additional information

Weight 50 kg
Dimensions 60 × 40 × 38 cm



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