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4.16 Motor connection at 208-230 or 460V
WARNING:
the motors, manufactured for 208-230/460 IE3 NEMA Premium Efficiency voltage, have the same connection than IE2/Epact motors,
but different connection than IE1 motors no more star/delta but star/double star.
Please, pay attention to the indications in case of modification of voltage, maintenance, or substitution.
IE1
~ ~ ~
460V
4.17 Motor connection at 575V
WARNING:
the motors, manufactured for 575V IE3 NEMA Premium Efficiency voltage, have the same control box base of the IE1 and IE2/Epact
motors.
Please pay attention to the indications in case of maintenance or substitution.
4.18 Reversible direction
WARNING:
If it is necessary to reverse the direction then reverse the two main supply phases.
For example: L1 with L2, there is not difference between IE1, IE2/Epact and IE3 NEMA Premium Efficiency.
20095062
D3686
~ ~ ~
208-230V
L1
L2
VKDIW
Installation
IE2/Epact - IE3 NEMA Premium Efficiency
U2
V2
U3
V3
U1
V1
~
~
460V
S8382
~ ~ ~
575V
/
/
S8381
28
GB
S8380
W2
U2
V2
W3
U3
V3
W1
U1
V1
~
~
~
208-230V
/
/
/
/
S8379
W2
W3
W1
~
Fig. 33
Fig. 34
Fig. 35
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