Ups Input Current Ratings - Eaton 9PXM8S4K User Manual

UPS Input Current Ratings

Table 5. UPS Recommended Breaker Sizes
NOTE
NOTE
See for recommended conductor sizes to wire the input circuit breakers.
Table 6. UPS Recommended Wire Sizes
Input Breaker Size
FOR U.S. INSTALLATIONS, READ THIS IMPORTANT NOTE
• lists the mm2 and AWG wire size for each circuit breaker size shown on the wiring diagrams. The
minimum recommended circuit breaker sizes for each model and voltage application are listed on the
wiring diagrams.
• Conductor sizes shall be no smaller than the 75°C wire size based on the ampacities given in Table 310.15
(B)(16) of the National Electrical Code® (NEC®), ANSI/NFPA 70-2017, and article 220. All circuit
conductors, including the neutral conductor, must be the same size (ampacity) wire. Code may require a
larger AWG size than shown in this table because of temperature, number of conductors in the conduit, or
long service runs. Follow local code requirements.
36 4–20kVA Users Guide P-164000669 4–20kVA Users Guide P-164000669—Rev 10
UPS Capacity
4kVA
8kVA
12kVA
16kVA
20kVA
If a super charger is installed in an EBM, the circuit breaker for the AC input to EBM
must be a 25 A breaker with 5.3 mm2 (10 AWG) copper wire.
To accommodate the feature of easy system expendability, it is recommended that
initial installation of the Eaton 9PXM UPS contains wiring to support the maximum
capacity of the UPS cabinet : 20kVA for 12–slot cabinets and 16kVA for 8 slot chassis.
25A
50A
80A
100A
125A
Input Circuit breaker Rating
25A
50A
80A
100A
125A
75° Copper Wire Size
5.3 mm2 (10 AWG)
8.4 mm2 (8 AWG)
21.2 mm2 (4 AWG)
33.6 mm2 (2 AWG)
42.1 mm2 (1 AWG)
IMPORTANT
75°C Copper Wire Size
5.3 mm2 (10 AWG)
8.4 mm2 (8 AWG)
21.2 mm2 (4 AWG)
33.6 mm2 (2 AWG)
42.1 mm2 (1 AWG)
Conductor Screw Tourqe
4.0 Nm (35 lb in)
4.5 Nm (40 lb in)
5.1 Nm (45 lb in)
6.6 Nm (50 lb in)
6.6 Nm (50 lb in)