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L3
L2
L1
N
CONTACTOR
FUSE
SINGLE PHASE
L3
L2
L1
CONTACTOR
FUSES
THREE PHASE
Figure 2.2.1: Power Connections
G85139-H1750-U049-C1
19/08/99
PE L/L1
N/L2
L3
PE
U
V
W
FILTER
(Class B only)
P
P
TYPICAL INSTALLATION
FILTER
PE
P
Control
Terminals
Mains Input
Terminals
Motor Terminals
Asynchronous and synchronous motors can be connected to the MICROMASTER
inverters either individually or in parallel.
Note:If a synchronous motor is connected to the inverter, the motor current may be
two and a half to three times greater than that expected, so, the inverter must be de-
rated accordingly.
MICROMASTER
L
U
V
N
W
PE
MICROMASTER
L3
U
L2
V
L1
W
PE
12
2. INSTALLATION
MOTOR
U
V
W
MOTOR
U
V
W
© Siemens plc 1999
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