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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.