BUG-O Systems BGW-5000 - Manual (Page 29)

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7. Put the equipment on the pre-set bottom up guide track.
4.4 Input Connection
WARNING!
Only a qualified electrician should connect the input leads to the GIRTH WELDER. Connections should be
made in accordance with all local and national electrical codes.
Connect three phase supply line (380V for standard GIRTH WELDER, 240V / 440V for special version)
to L1, L2, L3 and ground to the input lug of the 3-phase circuit breaker inside the electrical cabinet as
illustrated to the input supply connection diagram below.
Connect the output of the 3-phase circuit breaker with the welding power supply input.
The electrical cabinet also consists of a step down transformer and a secondary circuit breaker for 1 phase /
220V input to the GIRTH WELDER. The girth welders are shipped connected for the input voltage specified
for the destination of the machine in factory.
NOTE: Please turn main input power of the machine OFF before performing reconnects procedure. Failure
to do so will result in damage to the machine.