Product Description


AVB Series

PCB Transformer

Short-circuit proof, encapsulated, PRI 2 x 115 Vac, SEC 2 x 6 - 2 x 24 Vac, 0.35 - 3.2 VA


  • Permanent corrosion protection, high insulation value and maximum electrical reliability thanks to XtraDenseFill resin encapsulation
  • Inherently short-circuit proof
  • Minimum size at high output
  • Designed for high ambient temperatures
  • Dual input voltage for series or parallel connection
  • Self-extinguishing potting and hood material
  • Also with dual output voltage for series or parallel connection


PCB Transformers

PCB transformers are vacuum molded and feature a very high proof voltage as a result. Used on the PCB, they provide electrical isolation as a power transformer or safe electrical isolation for the input and output sides as an isolating or safety transformer. BLOCK's wide range of standard solutions provides the ideal supply for your circuit, from PCB transformers offering absolute or limited short-circuit protection or ones that are not short-circuit proof.

  • Minimal design size with high power output
  • Double input and output voltage for series or parallel connections
  • Power output 0.35 VA to 50 VA


  • As a mains transformer for adjustment of the voltage and simple electrical isolation.
  • As a safety 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.


Rated Power

0.35 - 3.2 VA


Up to 59 %

Maximum Ambient Temperature

70 °C (AVB 3,2 max. 50 °C)


Class B

Degree of Protection

IP 00

Rated Output Voltage

6 - 2 x 24 Vac

Rated Input Voltage

2 x 115 Vac


Mains Transformer

VDE 0570 Teil 2-1, DIN EN 61558-2-1, EN 61558-2-1, IEC 61558-2-1, UL 5085-1/-2, CSA 22.2 No.66

Separating Isolating Transformer

VDE 0570 Teil 2-6, DIN EN 61558-2-6, EN 61558-2-6, IEC 61558-2-6, UL 5085-1/-2, CSA 22.2 No.66


ENEC 10 (VDE), UL 5085-1/-2, CSA 22.2 No.66

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


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