Block ST 230V to 12V Transformers

Block Brand: Block

The Block ST 230V to 12V Transformers are low inrush current control, safety, or isolation current transformers with screw connection terminals. Designed with a very good switch on behaviour thanks to reduced starting currents, plus high performance for the volume thanks to compact design, this high quality transformers also have excellent corrosion protection and low noise thanks to BLOCKIMPEX vacuum impregnation.

  • Contact protected screw connection terminals - comply with UVV BGV A3
  • Simple mounting - robust metal footplate with oval slots
  • Natural cooling
      • Description Image Product Buy Pricing (Ex VAT) Height Length Power Width Primary Voltage Secondary Voltage
      Block ST 63/23/12, 63VA Transformer, 230V to 12V
      Block ST 63/23/12, 63VA Transformer, 230V to 12V
      Extended range
      Order code: 51-5292
      MPN: ST 63/23/12

      4 available to back orderBack-order availability date - 19/12/2025
      1+ £40.56
      Price per unit Ex VAT       		89mm 78mm 63VA 60mm 230V 12V
      Block ST 250/23/12, 250VA Transformer, 230V to 12V
      Block ST 250/23/12, 250VA Transformer, 230V to 12V
      Extended range
      Order code: 51-5274
      MPN: ST 250/23/12

      3 available to back orderBack-order availability date - 19/12/2025
      1+ £70.94
      Price per unit Ex VAT       		105mm 96mm 250VA 103mm 230V 12V
      Order code51-529251-5274
      Ambient temperature range+40°C (max)+40°C (max)
      ConstructionOpenOpen
      Efficiency84%90%
      FixingBase plateBase plate
      Fixing typeM4 screwsM5 screws
      Frequency50-60Hz50-60Hz
      Power63VA250VA
      Primary voltage230V230V
      Secondary current5.25A20.83A
      Secondary voltage12V12V
      Test voltage2500V2500V
      TypeST 63/23/12ST 250/23/12


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