Block ST 230V to 24V Transformers

Block Brand: Block

The Block ST 230V to 24V 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, thiese high quality transformers offer 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) Power Rating Height Length Width Weight Type Primary Voltages Secondary Voltages
    Block ST 20/23/24, 20VA Transformer, 230V to 24V
    Block ST 20/23/24, 20VA Transformer, 230V to 24V
    Extended range
    Order code: 51-5272
    MPN: ST 20/23/24

    Available to back orderBack-order availability date - 04/10/2026
    1+ £35.95
    Price per unit Ex VAT     		20VA 81mm 66mm 56mm 0.9kg Isolation Transformer 230V 24V
    Block ST 100/23/24, 100VA Transformer, 230V to 24V
    Block ST 100/23/24, 100VA Transformer, 230V to 24V
    Extended range
    Order code: 51-5255
    MPN: ST 100/23/24

    Back order - 20 availableBack-order availability date - 04/10/2026
    1+ £51.99
    10+ £49.17
    Price per unit Ex VAT     		100VA 95mm 84mm 76mm 2.2kg Isolation Transformer 230V 24V
    Block ST 160/23/24, 160VA Transformer, 230V to 24V
    Block ST 160/23/24, 160VA Transformer, 230V to 24V
    Extended range
    Order code: 51-5265
    MPN: ST 160/23/24

    Back order - 13 availableBack-order availability date - 04/10/2026
    1+ £53.55
    Price per unit Ex VAT     		160VA 105mm 96mm 88mm 2.4kg Isolation Transformer 230V 24V

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