Block ST 500/4/23, 500VA Transformer, 400V to 230V

Block
MPN
ST 500/4/23
Brand
Block
EAN-13
4016138686111
Order Code
51-5289
Country of Origin
Germany
View Full Product Range (2)
Qty Unit Price (Ex VAT)
1+ £123.40
Price per unit {{ this._page.IncVat ? 'Inc' : 'Ex' }} VAT
2 in stock, despatched same dayBack-order availability date - 29/05/2026

The Block 500VA Transformer 400V to 230V is a low inrush current control, safety, or isolation current transformer 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 tranfsormer also has excellent corrosion protection and low noise thanks to BLOCKIMPEX vacuum impregnation.


  • Primary voltage: 400V
  • Secondary voltage: 230V
  • Power: 500VA
  • Contact protected screw connection terminals - comply with UVV BGV A3
  • Simple mounting - robust metal footplate with oval slots
  • Natural cooling
Type Isolation Transformer
Primary Voltages 400V
Secondary Voltages 230V
Power Rating 500VA
Height 123mm
Length 120mm
Width 122mm
Weight 7.2kg

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