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614-00205-01_EN
ENGLISH
5. Power cables connection
5.1 Installation requirements
Recommended protective devices and cable cross-sections
Backfeed protection
utility
Circuit breaker
Note:
Do not feed neutral through circuit breaker or backfeed.
1.
Recommended upstream protection
UPS power rating
Upstream circuit breaker
9PX 8K SP
8000VA
D Curve - 60A
9PX 10K SP
10000VA
D Curve - 60A
2.
Recommended backfeed protection
One of following AC contactors used as backfeed protection devices shall be installed external
to Main Input of UPS. The following Eaton XCE050D contactors are recommended.
Note that the appropriate contactor should be sourced based upon the on-site voltage.
EATON XTCE050D series contactor
Nominal Coil
Voltage
Pickup
Drop out
Pickup
Drop out
Part number
Freq
Min
Max
Min
Max
Min
Max
Min
Max
208
XTCE050D00D
60
0.8
1.1
0.3
0.6
166
229
62
125
220
XTCE050D00G
60
0.8
1.1
0.3
0.6
176
242
66
132
240
XTCE050D00B
60
0.8
1.1
0.3
0.6
192
264
72
144
Manufacture
Type
Rating
Moeller GMBH
DILM-50
General Use - 80A, 600VAC, 50/60Hz
3.
Recommended wire size
Terminal
position
Wire
function
Terminal wire
size rating
Minimum input
wire size
Tightening
torque
L1
Phase
8-4 AWG (10-25 mm
2
)
6 AWG
(75°C)
For 9PX 8K SP
4 AWG
(75°C)
For 9PX 10K SP
18 lb in /
2.03 Nm
L2
Phase
N
Neutral
Ground
Copper wire, solid or stranded.
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