Powerware 9170 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 AWG and mm
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.
code requirements.
+
Powerware 9170 UPS User's Guide
®
75°C Copper Wire Size
10 AWG (5.3 mm
2
8 AWG (8.4 mm
4 AWG (21.2 mm
3 AWG (26.7 mm
2 AWG (33.6 mm
1 AWG (42.1 mm
2
wire size for each circuit breaker size shown on the wiring diagrams. The
Rev B www.powerware.com
S
UPS Electrical Installation
Conductor Screw Torque
2
) 35 in lb (4.0 Nm)
) 40 in lb (4.5 Nm)
2
) 45 in lb (5.1 Nm)
2
) 50 in lb (6.6 Nm)
2
) 50 in lb (6.6 Nm)
2
) 50 in lb (6.6 Nm)
Follow local
39