Mains Transformer

A mains transformer for general applications is a transformer where the input winding and the output winding are separated by basic insulation at a minimum. Reinforced or double insulation between the input and output circuits is not required.

Mains transformers of 1(5) kVA, single- (three)-phase, are generally executed according to EN61558-2-1. This standard can also be applied to isolation transformers with higher output powers if agreed upon between buyer and seller.