18. Supply the Electronic Board
The Relay C thyristor unit, to work, requires a voltage supply for the electronic boards. The Max consumption
is 10VA.
The voltage supply for the electronic boards is configured in line with customer requirements that are defined
in the Order Code. The Order Code is written on the identification label.
Warning: Before connecting or disconnecting the unit check that power and control cables
are isolated from voltage sources.
To change auxiliary supply voltage sold the correct link-jumper on Relay C board
The type of mounted transformer depends of the chosen Voltage in the order code.
Attention! never link all the jumpers JP1+JP2+JP3 at the same time or JP3 + any other jumper,
JP3 must be always alone, follow only the configuration shown.
Order Code
As ordered
Change to
Jumper JP1 + JP2 are linked
Link only Jumper JP3
Transformer range
Line voltage
Transformer range
Line voltage
RC3_ _ _-_1
90:135V
100/120V
180:265V
200/208/220/230/240V
RC3_ _ _-_2
180:265V
200/208/220/230/240V
342:528V
380/400/415/440/480V
RC3_ _ _-_3
238:330V
277V
540:759V
600/690V
Only Jumper 3 is linked
Link Jumper JP1 + JP2
RC3_ _ _-_5
342:528V
380/400/415/440/480V
180:265V
200/208/220/230/240V
RC3_ _ _-_6
540:759V
600V
238:330V
277V
RC3_ _ _-_7
540:759V
690V
238:330V
277V
JP2
JP3 JP1
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