ABB 6931U-101-500 Manual De Instrucciones página 30

GB
Important Information
CAUTION
Work on the 230 V supply system may only be performed
by authorised electricians!
Conventional Transformers
When operating with conventional transformers, the pri-
mary circuit of each transformer must be provided with
fuse protection in accordance with the manufacturer's
instructions. Only safety isolating transformers in
accordance with DIN VDE 0551 are to be used.