Juno Lighting TL576-10-BL, TL576-25-BL, TL576-60-BL Installation Manual

D3.1.10

Low Voltage Systems

Project:

Fixture Type:

Location:

REMOTE MOUNT CLASS 2

MAGNETIC TRANSFORMER

Contact/Phone:

PRODUCT SPECIFICATIONS

Description TL576-10-BL: 12V-10VA remote magnetic transformer Class 2

• Rated for 0.5-10 watts total load • 120VAC input

• Ideally suited for driving Juno Mini LED Downlight/Gimbal and Solo-Task fixtures • May also be used to operate other low wattage LED or incandescent loads.

TL576-25-BL: 12V-25VA remote magnetic transformer Class 2

• Rated for 0.5-25 watts total load • 120VAC input • Ideally suited for driving Juno Mini LED Downlight/Gimbal and Solo-Task fixtures • May also be used to operate other low wattage LED or incandescent loads.

TL576-60-BL: 12V-60VA remote magnetic transformer Class 2

• Rated for 0.5-60 watts total load • 120VAC input • Ideally suited for driving Juno Mini LED Downlight/Gimbal and Solo-Task fixtures • May also be used to operate other low wattage LED or incandescent loads.

Construction Potted core and coil • 13 volt boost tap • Thermally protected primary • Manually resettable, fast-acting magnetic circuit breaker on secondary • Primary and secondary circuits physically and electrically isolated.

Circuit Breaker Resettable magnetic circuit breaker • Provides faster short circuit protection than standard thermal circuit breakers

• Provides overload protection which is unaffected by ambient operating conditions • Eliminates false overload failures due to elevated ambient temperatures which can occur with thermal circuit breakers • Enables transformer to be mounted in any position.

Dimming 120V installations only – consult factory for 277V dimming applications • Incandescent loads can be dimmed with high quality dimmers designed specifically for use with magnetic transformer • LED loads may be dimmed using only dimmers that have been tested and qualified by Juno for use with Juno LED fixtures referenced on the following pages – consult factory to confirm compatibility of other dimmers prior to installation with Juno LED fixtures.

Installation Easy access front located wiring compartment • Wire nut terminations for input and output circuits • Operate in accessible locations with ambient temperatures below 140˚ F.

Labels UL/CUL listed • New York City Approved. Product specifications subject to change without notice.

12V AC LED-COMPATIBLE

TL576

DIMENSIONS

3 1/2”

3”

9”

PRODUCT CODES

Catalog Number Finish Description TL576-10-BL Black TL576-25-BL Black TL576-60-BL Black

ENGINEERING DATA

TL576-10 TL576-25 TL576-60

Input Voltage 120V 120V 120V Input Current Typ. 0.21A 0.31A 0.51A Nominal Output 11.9V 11.6V 11.2V Max. Load 10W 25W 60W Operating Frequency 60Hz 60Hz 60Hz Power Factor 0.70 0.85 0.92 T.H.D.I. 37% 30% 27%

10W 12V AC Magnetic Transformer 25W 12V AC Magnetic Transformer 60W 12V AC Magnetic Transformer

REV-1/13

D3.1.10

Low Voltage Systems

12V AC LED-COMPATIBLE REMOTE MOUNT

CLASS 2 MAGNETIC TRANSFORMER

TL576

APPLICATION

Consideration 12V Electronic Driver/Transformer 12V Magnetic Transformer

• Length • Use for short to medium fixture run lengths and • Use for medium to long run lengths and medium to

low to medium wattage systems higher wattage systems

• Dimming

designed for use with electronic transformers; designed for use with magnetic transformers;

transformers used with Juno LED fixtures should transformers used with Juno LED fixtures should only be operated with dimmers pre-qualified for only be operated with dimmers pre-qualified for suitability by Juno Lighting Group suitability by Juno Lighting Group

• Transformer Location • For best performance, transformer should be • Install in well ventilated locations where ambient

• Can be surface mounted or installed in insulation.

• Install where ambient temperature will not exceed 120

• Distance to First Fixture • For best results, should be mounted within 4’ • Suitable for remote mounting at long distances

• For optimal results, use dimmers specifically • For optimal results, use dimmers specifically

located close to fixture run.

F (50°C); transformer must be accessible

to first fixture in run.

temperature will not exceed 140°F (60°C);

transformer must be accessible

VOLTAGE DROP CALCULATIONS (FOR MAGNETIC TRANSFORMERS)

Voltage drop is a function of the following factors:

Wire Length: As the wire length from the supply to the fixture becomes longer, voltage drop increases.

Wire Diameter: As the wire cross-sectional area becomes smaller, voltage drop increases (this is related to the resistance per foot of wire).

Amperage of the Electrical Load: As the amperage of the electrical load increases, voltage drop also increases.

Voltage drop in 12 volt systems is 10 times greater than in 120 volt systems.

This is because a load of the same wattage has 10 times greater amperage in 12 volts as compared to 120 volts.

This is illustrated by the formula: WATTS = VOLTS x AMPS Assuming a 120 watt electrical load: 120 WATTS = 12 VOLTS x 10 AMPS 120 WATTS = 120 VOLTS x 1 AMP

Voltage drop from a magnetic transformer to the first lampholder on 12V Trac 12 can be calculated as follows:

TRANSFORMER

VOLTAGE DROP = 2D x A x Ω WHERE:

D = Distance in feet from transformer to 1st lamp A = Total amperage load of all lampholders on the trac

Ω = Resistance per foot of wire per the following chart:

Wire Gauge Resistance Per Foot of Wire (OHMS) #8 .00065

#10 .00104 #12 .00166

(A =

WATTS

______

VOLTS

WATTS

______

)

1300 S. Wolf Road • Des Plaines, IL 60018 • Phone (847) 827-9880 • Fax (847) 827-2925 220 Chrysler Drive • Brampton, Ontario • Canada L6S 6B6 • Phone (905) 792-7335 • Fax (905) 792-0064 Visit us at www.junolightinggroup.com

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