Eaton Powerware 9170+ UPS 3–18 kVA User Manual page 47

See Table 7 for recommended conductor sizes to wire the input circuit
breakers.
Table 7. Recommended Wire Sizes
Input Circuit Breaker Size
25A
40A
60A
80A
100A
125A
FOR U.S. INSTALLATIONS, READ THIS IMPORTANT NOTE!
This table lists the mm
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 310–16 of the National Electrical Code, ANSI/NFPA 70-1999, 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.
+
Eaton 9170 UPS (3–18 kVA) User's Guide
75°C Copper Wire Size
2
5.3 mm (10 AWG)
2
8.4 mm (8 AWG)
2
21.2 mm (4 AWG)
2
26.7 mm (3 AWG)
2
33.6 mm (2 AWG)
2
42.1 mm (1 AWG)
2
and AWG wire size for each circuit breaker size shown on the
S 164201393 Rev E www.eaton.com/powerquality
UPS ELECTRICAL INSTALLATION
Conductor Screw Torque
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)
6.6 Nm (50 lb in)
41