Input power connection – Units with load switch-disconnector or air
circuit breaker
Connection diagrams
6-pulse connection, two supply modules in parallel
*)
L1
L2
L3
Notes:
*)
Fuses are not required if the input power line is constructed of busbars that withstand the transformer short
circuit current.
**)
The cable lead-through details (number and size of holes), and cable connection details (number and
dimensions of busbars, tightening torque) are given in chapter
connection.
***)
There are no contactors inside the supply module(s) when the drive is equipped with an air circuit breaker.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
PE
PE
1L1
1L2
1L3
**)
Switching,
breaking,
disconnecting
and grounding
devices
Incoming cubicle
Technical
***)
***)
Supply module cubicle
data, section
Input power
Electrical installation
77