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Table 3-5 Input/output ratings and external Wiring requirements for the eaton 9eHd 20-40 kVa
Basic unit rating
Input and output Voltage
a: aC Input to uPS rectifer
Full load current plus battery recharge current
(3) Phases, (1) Neutral, (1) Ground
Conductor Size (Phase A, B, C and N)
B: aC Input to uPS Bypass (five Wire, dual-feed)
Full Load Current
(3) Phases, (1) Neutral
Conductor Size (Phase A, B, C )
Conductor Size (N) (linear load )
C: dC Input from external Battery (432 Vdc)
(1) Positive, (1) Negative
Conductor Size
d: aC output to Critical load (five Wire)
Full Load Current
(3) Phases, (1) Neutral
Conductor Size (Phase A, B,C )
Conductor Size (N) (linear load )
Protective bonding conductors
Protective earthing conductors
neutral (n) (mains/load):( non-linear load )
Backfeed protection device
noTe
Callout letters
External overcurrent protection is not provided by this product, but is required by codes. Refer to
table 3-5 for wiring requirements. If an input/output lockable disconnect is required, it is to be
supplied by the user.
16
Eaton 9EHD UPS (20-40 kVA, 380/400/415V) Installation and Operation Manual
cross-
sections
A
B
C
D
,
,
, and
map to Figure 5-5.
units
kVA
kW
Volts
Amps
min
mm
2
max
mm
2
Amps
min
mm
2
max
mm
2
min
mm
2
max
mm
2
Total Amps
min
mm
2
max
mm
2
Amps
min
mm
2
max
mm
2
min
mm
2
max
mm
2
min
mm
2
Clearance distance:> =2.0 mm
Break time < =15s
CAUTION
rating 50/60 Hz
20
30
18
27
400/230
400/230
41
56
4×1
6×1
16×1
25×1
29
43
2.5×1
4×1
10×1
16×1
6×1
10×1
25×1
35×1
46
69
6×1
10×1
25×1
35×1
29
43
2.5×1
4×1
10×1
16×1
6×1
10×1
25×1
35×1
1.0times
6×1
10×1
1.7 times
40
36
400/230
70
10×1
35×1
58
6×1
25×1
16×1
50×1
92
16×1
50×1
58
6×1
25×1
16×1
50×1
16×1
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