AC Input to
UPS Rectifer
4 Wire A-B-C
Rotation
L1, L2,
L3, N
Input breaker
(Optional)
Bypass Input breaker
Internal Single-Feed
Jumper
Static
Switch
Input
Contactor
Output
Contactor
Backfeed Contactor
Output Switch
Maintenance Bypass Switch
AC Output to
Critical Load
Battery
Converter
Rectifer
Inverter
L1, L2,
L3, N
Pull Chain
Parallel CAN
Mini-Slot
Interface
Remote EPO
Fuse
Fuse
Fuse
Battery Contactor
Battery
Breaker
Interface Board
L1, L2,
L3, N
AC Input to
Bypass 4 Wire
A-B-C Rotation
a
B
d
C
uPS
CaBIneT
eXTernal BaTTery
CaBIneT
noTe
Callout letters
a,B,C,
and
d
map to Table 3-5.
figure 5-5 uPS System oneline(3 Phase Input, 3 Phase output)
Eaton 9EHD UPS (20-40 kVA, 380/400/415V) Installation and Operation Manual
48
Summary of Contents for 9EHD Series
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