Central module Z51-GW20
The 12V / 5V DC-DC converter of type Z51-GW20
is used to supply power to a Z51 automation station,
which includes e.g. a central module of type Z51-ZM20
On the input side, one or two intrinsically safe power
supply units (NG3-12ib) feed the converter with a 12V
If only one 12V supply unit is used, a max. output
current of approx. 1.6A can be tapped.