Table 3-6. Ups External Power Cable Terminations For The Eaton 9Ehd 20-40Kva; Table 3-7 Recommended Input Circuit Breaker Ratings - Eaton 9EHD-33-40/20 User's Installation And Operation Manual

Table 3-6 uPS external Power Cable Terminations for the eaton 9eHd 20-40 kVa
Terminal
function Terminal
AC Input to UPS
Rectifer
AC Input to Bypass
AC Output to Critical
Load
DC Input from External
Battery
Customer Ground Ground
Heater (Opeional)
noTe A B C
Callout letters , ,

Table 3-7 recommended Input Circuit Breaker ratings

uPS model
Eaton 9EHD-31-40/20
Eaton 9EHD-33-40/20
Eaton 9EHD-31-40/30
Eaton 9EHD-33-40/30
Eaton 9EHD-31-40/40
Eaton 9EHD-33-40/40
To reduce the risk of fire, connect only to a circuit provided with maximum input
circuit breaker current ratings from Table 3-7 in accordance with local regulations.
The line-to-line unbalanced output capability of the UPS is limited only by the full load per phase current values
for AC output to critical load shown in Table 3-5. The recommended line-to-line load unbalance is 50% or less.
Readily accessible disconnect devices (Bypass and output overcurrent protection and bypass disconnect
breaker) are to be supplied by the customer. Table 3-8 lists the recommended rating for bypass and output
circuit breakers.
function
L1 Phase A
L2 Phase B
L3 Phase C
N Neutral
L1 Phase A
L2 Phase B
L3 Phase C
N Neutral
L1 Phase A
L2 Phase B
L3 Phase C
N Neutral
+ Battery (+)
– Battery (-)
Ground
L Ground(jerry)
N Ground(jerry)
D
, and map to Figure 5-5.
load derating
80% Derated
100% Rating
80% Derated
100% Rating
80% Derated
100% Rating
Eaton 9EHD UPS (20-40 kVA, 380/400/415V) Installation and Operation Manual
Tightening Torque
Bus landing nm (lb in)
M8 bolt mounting
M8 bolt mounting
M8 bolt mounting
M8 bolt mounting
M8 bolt mounting
M8 bolt mounting
M8 bolt mounting
M8 bolt mounting
M8 bolt mounting
M8 bolt mounting
M8 bolt mounting
M8 bolt mounting
M10 bolt mounting
M10 bolt mounting
M8 bolt mounting
M6 bolt mounting
M6 bolt mounting
Circuit Breaker rating
400V
51A
41A
70A
56A
88A
70A
CAUTION
Screw Size and Type
8 (70) 50.24 mm (M8). Hex
2
8 (70) 50.24 mm (M8). Hex
2
8 (70) 50.24 mm (M8). Hex
2
8 (70) 50.24 mm (M8). Hex
2
8 (70) 50.24 mm (M8). Hex
2
8 (70) 50.24 mm (M8). Hex
2
8 (70) 50.24 mm (M8). Hex
2
8 (70) 50.24 mm (M8). Hex
2
8 (70) 50.24 mm (M8). Hex
2
8 (70) 50.24 mm (M8). Hex
2
8 (70) 50.24 mm (M8). Hex
2
8 (70) 50.24 mm (M8). Hex
2
10(86) 78.52 mm (M10). Hex
2
10(86) 78.52 mm (M10). Hex
2
12 (106) 50.24 mm (M8). Hex
2
3(26) 28.26 mm (M6). Hex
2
3(26) 28.26 mm (M6). Hex
2
I2T a2Sec
>2116
>3969
>6241
17