Block STU Dual Output Transformers

Block Brand: Block

These Block STU Dual Output 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, these 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 STU 63/2x115, 63VA Transformer, 2 x 115V
    Block STU 63/2x115, 63VA Transformer, 2 x 115V
    Extended range
    Order code: 51-5328
    MPN: STU 63/2x115

    9 available to back orderBack-order availability date - 20/12/2025
    1+ £57.16
    Price per unit Ex VAT     		94mm 84mm 63VA 64mm 210 / 230 / 250 / 380 / 400 / 420 / 440 / 460 / 480 / 500 / 520 / 540V 2 x 115V
    Block STU 130/2x115, 130VA Transformer, 2 x 115V
    Block STU 130/2x115, 130VA Transformer, 2 x 115V
    Extended range
    Order code: 51-5321
    MPN: STU 130/2x115

    Available to back orderBack order, lead time 11 days
    1+ £67.00
    Price per unit Ex VAT     		105mm 96mm 130VA 78mm 210 / 230 / 250 / 380 / 400 / 420 / 440 / 460 / 480 / 500 / 520 / 540V 2 x 115V
    Order code51-532851-5321
    Ambient temperature range+40°C (max)+40°C (max)
    ConstructionOpenOpen
    Efficiency84%86%
    FixingBase plateBase plate
    Fixing typeM4 screwsM5 screws
    Frequency50-60Hz50-60Hz
    Power63VA130VA
    Primary voltage210-540V210-540V
    Secondary current273mA565mA
    Secondary voltage2 x 115V2 x 115V
    Test voltage2500V2500V
    TypeSTU 63/2x115STU 130/2x115


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