APPENDIX B: DIMMER PACK FEEDER CABLES
The 2002 National Electrical Code allows for smaller, lighter, less expensive cables, providing the
terminations on each end are capable of dealing with the elevated temperatures. All Pack
terminations are rated to operate at the elevated temperatures at which 90
˚
C rated cables operate.
Proper selection is dependent on the rating of the terminations on the opposite end of the cable. All
other terminations are rated for 60
˚
C cable unless specifically marked for the higher rating.
Below are suggested feeder cables based on the 2002 NEC. They all fit the 1.15" to 1.98” range of
the Pack cable clamp and the 1/0 AWG (0 AWG) maximum size of the terminations.
Dimmer Pack
Rating
Termination
Temperature Rating
Cable Size
and Type
Cable
Diameter
2.4Kw
2.4kW
2.4kW
2.4kW
2.4kW
2.4kW
60
˚
C
60
˚
C
75
˚
C
75
˚
C
90
˚
C
90
˚
C
1/4G
1/5W
2/4G
2/5W
3/4G
3/5W
1.68
1.88
1.48
1.61
1.34
1.51
It is also possible to use single-conductor type W feeder cable. The NEC requires a minimum of 1
AWG for use in theatres. Since this cable is over-sized for this application, 1 AWG is good for all
three temperature ratings. The five cables can be bundled or unbundled. It is necessary to use a 6
AWG ground conductor as five 1 AWG conductors will not fit the cable clamp.
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