Technical information

20A
Standard Layout
Revised Layout Using Short Track Segments
Track length determines wattage calculation
Track length determines wattage calculation
The Square D Track-Limiting Panel installs between the branch circuit breaker and the track lighting, solving
the energy code calculation discrepancy, making the wattage calculation independent of track length.
20A
20A
20A
20A
20A
6A
6A
Branch Circuit
Breaker Panel
Branch Circuit
Breaker Panel
Branch Circuit
Breaker Panel
Track-Limiting
Panel
With the Track-Limiting Panel
100 ft of track = 4500W*
64 ft of track = 2880W*
Same 100 ft. of track: 6A @ 120V = 720W
6A @ 120V - 720W
1440W total
*Based on 45W/ft multiplier of California Title 24
(plus significantly higher
installed costs and reduced
layout flexibility)
20A
Standard Layout
Revised Layout Using Short Track Segments
Track length determines wattage calculation
Track length determines wattage calculation
The Square D Track-Limiting Panel installs between the branch circuit breaker and the track lighting, solving
the energy code calculation discrepancy, making the wattage calculation independent of track length.
20A
20A
20A
20A
20A
6A
6A
Branch Circuit
Breaker Panel
Branch Circuit
Breaker Panel
Branch Circuit
Breaker Panel
Track-Limiting
Panel
With the Track-Limiting Panel
100 ft of track = 4500W*
64 ft of track = 2880W*
Same 100 ft. of track: 6A @ 120V = 720W
6A @ 120V - 720W
1440W total
*Based on 45W/ft multiplier of California Title 24
(plus significantly higher
installed costs and reduced
layout flexibility)
The Track-Limiting Panel installs between the branch circuit breaker and the track lighting, solving the energy code
calculation discrepancy, making the wattage calculation independent of track length.
SCHNEIDER ELECTRIC TRACK-LIMITING PANELS
+
TRACK-LIMITING PANELS
Energy codes typically calculate track lighting loads based on linear feet of installed track. Some codes use a multiplier as low as
30 watts/foot while others use a multiplier as high as 70 watts/foot. When using the energy efcient lighting technologies available
today, the connected load is typically much less than the per-foot multipliers used by most energy codes. This penalizes lighting
designs that employ track lighting and wastes available lighting watts that could be used more effectively.
Below is a typical track lighting example. The Standard Layout consists of two 50’ runs of single circuit track, each with sixteen
39W track heads for a total connected load of 1376W. The Revised Layout Using Short Track Segments has the same 1376W
connected load but uses sixteen short 4’ track segments (64’), each fed separately, to help minimize the impact of the watts per
foot multiplier. The scenario with the Track-Limiting Panel uses the original two 50’ runs of single circuit track, with each monitored
by a 6 Amp current limiting circuit breaker that is closely matched to the actual connected load of 1376W. This results in the
minimum calculated watts per the energy codes.
With the Track-Limiting Panel
Without the Track-Limiting Panel
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