Product Description


ACT Series

Safety Transformer

Panel installation on mounting rails, PRI 230 Vac, SEC 24 Vac, 10 - 100 VA


  • Robust plastic enclosure for rail mounting, e.g. in consumer units or meter mounting boards
  • Permanent corrosion protection, high insulation value and maximum electrical reliability thanks to XtraDenseFill resin encapsulation
  • Integrated short-circuit and overload protection thanks to temperature fuse in the input and fuse in the output (ACT 10 only temperature fuse)


Safety Transformers

Safety transformers with galvanic isolation provide a reliable supply to power circuits with the safety measures “protective separation” or “protection through shutdown”. Double or reinforced isolation between the primary and secondary sides protects SELV and PELV circuits. Safety transformers provide safety extra low voltages below 50 Vac or 120 Vdc. BLOCK's standard range includes power ratings of between 0.5 VA and 2,500 VA.

  • Protection for SELV and PELV circuits
  • For safety extra low voltages below 50 Vac or 120 Vdc
  • Power output: 0.5 VA to 2,500 VA


Safety isolating transformer for the safe electrical isolation of the input and output sides. The transformer is suitable for creating SELV and PELV circuits because of the limit on the output voltage.



Class B

Degree of Protection

IP 00

Rated Output Voltage

24 Vac

Rated Power

10 - 100 VA

Rated Input Voltage

230 Vac

Maximum Ambient Temperature

25 °C


VDE 0570 Part 2-6, DIN EN 61558-2-6, EN 61558-2-6, IEC 61558-2-6

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


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