Product Description


CT Series

Power Transformer

Base plate, PRI 2 x 240 Vac, 600 Vac, SEC 24 Vac, 120 Vac, 50 - 2,500 VA


  • Contact protected screw connection terminals
  • Up to 2,500 VA
  • Fused versions available
  • Versions with DIN rail for additional components available
  • Very good corrosion protection and low noise thanks to BLOCK IMPEX vacuum impregnation
  • Jumpers included for primary voltage selection


Power Transformers

Power transformers with galvanic isolation can be used, e.g., to supply reliable low contact voltage to FELV circuits. In accordance with EN 61558, power transformers provide basic isolation between the primary and secondary sides at a minimum. This makes them ideal for creating new independent networks. BLOCK's standard range includes power ratings of between 0.5 VA and 2,500 VA.

  • Basic isolation in accordance with EN 61558
  • Power output: 0.5 VA to 2,500 VA


As a separating transformer for adjustment of the voltage and simple electrical isolation.


Rated Power

50 - 2,500 VA


Up to 95 %

Maximum Ambient Temperature

40 °C


Class B

Degree of Protection

IP 00

Rated Output Voltage

24 V, 120 V

Rated Input Voltage

2 x 240 V or 600 V


EN 61558 part 1 with part 2-1, UL 5085-1/-2;2:2, CSA 22.2 No. 66


UL 5085-1/-2, CSA 22.2 No.66, EAC

Specifications vary between configurations. Refer to the Configurations below for more information and links to the manufacturer's website.


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