16 2 - Operation and maintenance
TO320 M - EN - Ed. 04.09
Wiring diagram
THREE-PHASE MOTORS
The windings of the standard motors can be connected in two ways:
• star connection (Fig. 1)
• delta connection (Fig. 2)
STAR CONNECTION
The star connection is obtained by connecting together terminals W2, U2, V2 and powering terminals
U1, V1, W1.
DELTA CONNECTION
The delta connection is obtained by connecting the end of one phase to the beginning of the next
phase.
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