Eaton Electrical ASY0674, ASY0673, ASY0529, ASY0567 manual Recommended Wire Sizes

UPS ELECTRICAL INSTALLATION

See Table 7 for recommended conductor sizes to wire the input circuit breakers.

Table 7. Recommended Wire Sizes

Input Circuit Breaker Size	75°C Copper Wire Size	Conductor Screw Torque
25A	5.3 mm2 (10 AWG)	4.0 Nm (35 lb in)
40A	8.4 mm2 (8 AWG)	4.5 Nm (40 lb in)
60A	21.2 mm2 (4 AWG)	5.1 Nm (45 lb in)
80A	26.7 mm2 (3 AWG)	6.6 Nm (50 lb in)
100A	33.6 mm2 (2 AWG)	6.6 Nm (50 lb in)
125A	42.1 mm2 (1 AWG)	6.6 Nm (50 lb in)

FOR U.S. INSTALLATIONS, READ THIS IMPORTANT NOTE!

This table 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 310–16 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 S 164201393 Rev E www.eaton.com/powerquality 41