Lighting Control & Design - SilverBullet™ (T24)

Lighting calculations for most energy codes include a deduction for each linear foot of track. California’s Title 24 “charges” 45 watts/linear foot of track lighting. Seattle “charges” 70 watts /foot. ASHRAE, 30 watts/foot. With today’s lighting technology the connected load is far less than the per-foot requirements of these codes.

The SilverBullet, a “Sub-Branch Circuit Current Limiter” solves this requirement by enforcing a definite current limit to lower the VA rating of each track lighting circuit.

For example, California’s Title 24 would require three track circuits with a total length 100 ft to be calculated at a minimum of 4500 watts (45 watts/foot x 100 ft). With the SilverBullet those three tracks could be limited to 8 amps each to reduce the lighting load calculation to 2880 watts (120v x 24 amps).

For example, Califonia's Title 24 would require three track circuits with a total length 100 ft to be calculated at a minimum of 4500 watts (45 watts/foot x 100ft). With the SilverBullet those three tracks could be limited to 8 amps each to reduce the lighting load calculation to 2880 watts (120v x 24 amps).

The SilverBullet is designed to be placed in-line between the branch circuit breaker and the track mounted lighting.

“The wattage of line voltage lighting track and plug-in busway which allows the addition or relocation of luminaires without altering the wiring of the system shall be the volt-ampere rating of the branch circuit feeding the luminaires.”

When doing energy calculations, use the ampere rating of the supplementary breaker in the SilverBullet as opposed to the linear footage of the track.

For example California’s Title 24 mandate’s three track circuits with a total length 100 ft to be calculated at a minimum of 4500 watts (45 watts/foot x 100 ft). With the SilverBullet those three tracks could be limited to 8 amps each to reduce the lighting load calculation to 2,880 watts (120v x 24 amps).

This is what the SilverBullet does. When doing energy calculations, use the ampere rating of the supplementary breaker in the SilverBullet as opposed to the linear footage of the track. No magic. Just a SilverBullet.

Approvals:
California Energy Commision- Approval
California Energy Commision-Acknowledgement
ASHRAE addendum

GR 2400™ System

Features