Installation
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20106891
4.17 Motor connection at 208-230 or 460V
Please, pay attention to the indications in case of modification of
voltage, maintenance, or substitution.
4.18 Motor connection at 575V
Please pay attention to the indications in case of maintenance or
substitution.
4.19 Reversible direction
For example: L1 with L2, there is not difference between IE1, IE2/
Epact and IE3 NEMA Premium Efficiency.
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
S8380
~ ~ ~ ~ ~ ~
460V 208-230V
~ ~ ~ ~ ~ ~
460V 208-230V
Fig. 29
the motors, manufactured for 575V IE3 NEMA Pre-
mium Efficiency voltage, have the same control
box base of the IE1 and IE2/Epact motors.
If it is necessary to reverse the direction then re-
verse the two main supply phases.