CURRENT LIMITING SUBPANEL

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1 Project: Fixture Type: Location: Contact/Phone: PRODUCT DESCRIPTION The Juno Trac-Master Current Limiting Subpanel is THE solution for complying with stringent energy codes like ASHRAE 90.1 and California Title 24. Typically for trac lighting, it is defined as a sub-branch circuit current limiter designed to limit available wattage to lighting circuits, to only that necessary to meet the lighting design criteria. The Trac-Master Subpanel employs supplementary current limiting circuit breakers configured specifically for the lighting design in the space. Rather than lighting loads being calculated by the greater of maximum fixture wattage ratings or an arbitrary watts per foot multiplier, the Trac-Master Subpanel enables calculations to instead be made based on the rating of the supplementary subpanel breaker. Because it limits a circuit not the lighting equipment itself, the Trac-Master subpanel provides maximum flexibility to accommodate frequent lighting design modifications and layout changes, especially typical for retail spaces. PRODUCT SPECIFICATIONS Features Designed to be installed between the branch circuit breaker and the lighting equipment Not intended to be used as a primary circuit protector Factory pre-assembled and customized No programming required. Construction Heavy-duty 16 gauge die formed steel enclosure Hinged door with key-locking latch Removable front panel with factory labeled breaker wiring data simplifies installation Ample quantity of combination ( 1 / 2, 3 / 4, 1 ) knockouts provide maximum installation flexibility for top, bottom and side conduit connections Precision 35mm DIN rail mounting secures breakers in place Includes ample ground terminals for all circuits Mini panel accommodates 1 to 12 circuits, standard panel accommodates 6 to 21 circuits and large panel accommodates 22 to 42 circuits Mini panel available in surface mount configuration only Standard and large available in surface mount or flush mount configurations. Finish Durable powder coat paint Industrial gray color standard. Supplementary Current Limiters Single pole supplementary protectors Rated for 120/277VAC operation Available in individual amperage ratings including 0.5A, 1A, 2A, 3A, 4A, 5A, 6A, 7A, 8A, 10A, 13A and 15A, selected based on actual lighting loads Protectors should be loaded to a maximum of 80% of rating to avoid nuisance tripping Wiring installs directly into protector terminal Color-coded ON/OFF indicator clearly identifies status Easily resettable in an accessible location in the event of an overcurrent situation UL 1077, CSA 22.2, IEC approved. Labels UL Listed cul Listed Approved by the California Energy Commission to meet the requirements of Title 24 Complies with ASHRAE Warranty Product is warranted against defects in material and workmanship for a period of 3 years. Product specifications subject to change without notice. ORDERING INFORMATION Supplementary Current Limiter ratings are determined by the electrical layout drawings. A submittal package will be provided by Juno for approval following receipt of order and single line drawings. Supplementary Current Limiter ratings and position are not required to be specified as part of the catalog number. Specifications assistance is available thru local Juno Lighting Group sales representatives or by contacting Juno Lighting Group Technical Services at (888) Ordering Examples: CLS10M, CLS16, CLS21F CLS Series Number of Circuits per Panel Panel Style Mounting Style CLS = Trac-Master Current 6-21 for Standard Panel Blank = Standard Panel (6-21 circuits) Blank = Surface Mount Limiting Subpanel for Large Panel or Large Panel (22-42 circuits) F = Flush Mount (Standard or Large Panel Only) 1-12 for Mini Panel M = Mini Panel (1-12 circuits) REV-10/12

2 DIMENSIONS MINI 1-12 CIRCUIT PANEL - SURFACE MOUNT 9 1/16" 12 3/4" 3 15/16"

3 DIMENSIONS STANDARD 6-21 CIRCUIT PANEL - SURFACE MOUNT STANDARD 6-21 CIRCUIT PANEL - FLUSH MOUNT 14 1/4" 15 7/16" 17 7/8" 19 1/8" 3 13/16" 3 13/16" LARGE CIRCUIT PANEL - SURFACE MOUNT 14 1/2" LARGE CIRCUIT PANEL - FLUSH MOUNT 15 7/16" 33 13/16" 35 1/8" 3 13/16" 3 13/16"

4 MOUNTING TEMPLATE MINI 1-12 CIRCUIT PANEL MOUNTING TEMPLATE 6" 3 1/8" STANDARD 6-21 CIRCUIT PANEL MOUNTING TEMPLATE LARGE CIRCUIT PANEL MOUNTING TEMPLATE 5 1/2" 5 1/2" 15" 30 7/8"

5 APPLICATION Energy codes typically calculate trac lighting loads based on linear feet of installed trac. 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 efficient 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 trac lighting and wastes available lighting watts that could be used more effectively. Below is a typical trac lighting example. The Standard Layout consists of 100 of single circuit trac with 32 CMH trac heads, each using 39W lamps, for a total connected load of 1440W. The Revised Layout Using Short Trac Segments has the same 1440W connected load but uses sixteen short 4 trac segments (64 ), each fed separately, to help minimize the impact of the watts per foot multiplier. The scenario with the Trac-Master Current Limiting Subpanel uses the original 100 of single circuit trac, with each monitored by a 4-Amp current limiting supplementary protector that is closely matched to the actual connected load of 1440W plus a small buffer. This results in the minimum calculated watts per the energy codes. 1. Standard Layout without the Trac-Master Subpanel Revised Layout Using Short Trac Segments The Trac-Master Subpanel installs between the branch circuit breaker and the trac lighting, solving the energy code calculation discrepancy, making the wattage calculation independent of trac length. 3. Standard Layout with the Trac-Master Panel