Power supply installation Standard 1.0
44 CallPilot
DC wire gauge tables
Introduction
The tables in this section specify the DC power feed wire requirements.

Cabinet and module DC feed recommended wire gauge

specifications

Notes:
1. Cabinet and module ground wire specification is #10 AWG insulated
green safety ground wire.
2. Cabinet conduit can be 1.91 cm (0.75 in.) or 3.18 cm (1.25 in.), and must
be insulated from cabinet ground.
Length #10 AWG #8 AWG #6 AWG
Junction
box #4
AWG
Junction
box #4
AWG
0–30 m (100 ft) yes yes yes yes yes
0–45 m (150 ft) no yes yes yes yes
0–75 m (250 ft)nonoyesyesyes
0–135 m (450 ft) no no no yes yes
0–210 m (700 ft) no no no no yes
Over 210 m (700 ft) no no no no no