Installation
27
20109674
GB
4.16 Motor connection at 208-230 or 460V
Please, pay attention to the indications in case of modification of
voltage, maintenance, or substitution.
4.17 Motor connection at 575V
Please pay attention to the indications in case of maintenance or
substitution.
4.18 Reversible direction
For example: L1 with L2, there is not difference between
IE1
,
IE2/
Epact
and
IE3 NEMA Premium Efficiency.
WARNING
the motors, manufactured for 208-230/460
IE3
NEMA Premium Efficiency
voltage, have the
same connection than
IE2/Epact
motors, but differ-
ent connection than
IE1
motors no more star/delta
but star/double star.
D3686
IE1
IE2/Epact - IE3 NEMA Premium Efficiency
U2
V2
W2
U3
V3
W3
U1
V1
W1
S8379
U2
V2
W2
U3
V3
W3
U1
V1
W1
S8380
~ ~ ~
~ ~ ~
460V
208-230V
~
~
~
~
~
~
460V
208-230V
Fig. 34
WARNING
the motors, manufactured for 575V
IE3 NEMA Pre-
mium Efficiency
voltage, have the same control
box base of the
IE1
and
IE2/Epact
motors.
S8382
~ ~ ~
575V
Fig. 35
WARNING
If it is necessary to reverse the direction then re-
verse the two main supply phases.
/ / /
/ / /
VKDIW
S8381
L1
L2
Fig. 36