For Con-Tech Lighting Symphony Low Voltage Track System
Our Symphony Low Voltage Track has solid 10 gauge copper conductors with Noryl® insulators placed in heavy gauge extruded aluminum
channels. These 25A rated track sections are supplied with toggle bolts and wood screws for a simple installation. The 2', 4' and 6' sections
are pre-drilled with two mounting holes and the 8' section has three mounting holes. Track sections may be cut in the field, but take care to
back out the bus bar before cutting. Every section is supplied with a MLA-1 End Feed Connector/Cover and a MLA-11 End Cap.
Polarity is not an issue with low voltage lighting.
Symphony track can be fed at the MLA-1 End Feed Connector, MLA-8 Conduit End Feed, or MLA-9 Outlet Box/T-Bar Ceiling Canopy with use of a
remote transformer. Connections can be made by using the MLA-2 Straight Connector, MLA-3 Flexible Connector, or MLA-12 Right Angle Connector.
Compatible transformers are available in various configurations:
• MLA-415: 125VA Canopy Transformer, Junction Box Mount, 120/12V, End or Center Feed
• MLA-60: 60VA Plug-in Electronic Transformer with 10’ Cord and Plug, 120/12V, End Feed
• MLA-830: 240VA, Surface Electronic Transformer Feed with Knockouts and Switch, 120/12V, End Feed
Transformers/Voltage Drop Chart for Low Voltage Power Systems
When voltage and lamp brightness at the beginning of an illuminated section (close to the transformer) are higher than the voltage and lamp
brightness at the end, the difference is known as “Voltage Drop.” For a proper low voltage lighting system, circuit runs must be of sufficient
size wire to maintain a proper operating voltage to all lamps. Maximum allowable voltage drop should not exceed 5%.
Electronic Transformers
Maximum wiring distance (from remote transformer to start of track):
12' (Max.*) with AC Electronic Transformer (use minimum 10 ga. wire)
40' (Max.*) with DC Electronic Transformer (use minimum 10 ga. wire)
These distances may be extended with thicker gauge wire.
These transformers may be dimmed with dimmers specifically designed for use with Low Voltage Electronic Transformers. All electronic
transformers offer auto-reset short circuit protection, overload protection, and thermal cut-off at 257°F. These electronic transformers will not
operate without a minimum 30% load. UL Listed (UL 2108 compliant)
Magnetic Transformers
Maximum distance with Magnetic Transformer should not exceed 40.'
These transformers may be dimmed with dimmers specifically designed for use with Low Voltage Magnetic Transformers. High reliability with
magnetic circuit breakers. Primary 5% boost tap provided to compensate for voltage drop on long runs of 20' or more. These UL Listed (UL
2108 compliant) transformers will operate with any load.
WIRING DISTANCE IN FEET
REMOTE TRANSFORMER TO START OF TRACK
Ampere
Capacity
Wire
Gauge
25
10
Low Voltage
Output
Transformer
Wattage
#10 GA
Wire
#8 GA
Wire
#6 GA
Wire
#4 GA
Wire
12 Volt
150 Watt
23'
36'
57'
91'
35
8
12 Volt
250 Watt
14'
21'
34'
55'
50
6
12 Volt
300 Watt
11'
18'
28'
45'
70
4
Transformer/Driver Selection Matrix for MCT-3LED Fixture and MRL-3LED Pendants
This matrix is designed to provide multiple options to powering the MCT-3LED Symphony Track fixture and MRL-3LED Symphony Track pendants.
All transformers and drivers must be installed according to National Electrical Code and local building codes. Due to minimum wattage requirements of many electronic transformers, Con-Tech offers a low wattage Electronic Transformer option, Magnetic Transformers and Drivers.
Mounting Options
# of Fixtures (Watts)
Electronic Transformer
Magnetic Transformer
Driver
Mono-Point (MLA-8 or MLA-9)
1 (4.7W)
RS1260MLED
LVT-150
LED10CV12
Symphony Track
2 (9.4W)
RS1260MLED
LVT-150
LED10CV12
3 (14.1W)
RS1260MLED
LVT-150
LED25 12V
4 (18.8W)
RS1260MLED
LVT-150
LED25 12V
5 - 10 (23.5W - 47W)
LRT-181, LRT-363, MLA-60
LVT-1200-C-24, LVT-150, LVT-300,
LVT-300 277V, LVT-300-24, LVT-500-C,
LVT-600-24, LVT-600-277V-24, LVT-600-C
LED60WDC12V
LRT-181, LRT-363, LVT-151,
LVT-151 24V, LVT-175-DC,
LVT-303, LVT-303 24V, LVT-303-DC,
MLA-60, MLA-415, MLA-830
LVT-1200-C-24, LVT-150, LVT-300,
LVT-300 277V, LVT-300-24,
LVT-500-C, LVT-600-24,
LVT-600-277V-24, LVT-600-C
11 or > (51.7W+)
All specifications subject to change without notice.
1-847-559-5500
www.con-techlighting.com
This document can be recycled.
LED100WDC12V
Continued on Page 2
SYM INST 1
For Con-Tech Lighting Symphony Low Voltage Track System
MLA-1 End Feed Connector: Figure 1
• Remove the MLA-1 connector cover and loosen the terminal block allen
screws.
• Attach the terminal block to the Symphony track and tighten the terminal
block Philips mounting screw.
• Mount the Symphony track to the ceiling (2', 4', & 6' pieces have 2
mounting holes and 8' pieces have 3 mounting holes). Toggle bolts and
screws are provided with the track. The copper bus bars must be
inserted into the terminal block for 5/16".
• Connect the 12V secondary wires from the transformer to the terminal
block using the slotted set screws. MAKE SURE ALL CONNECTIONS
ARE TIGHT!
• Properly secure the cover to the terminal block with (1) 6-32 x 1/4"
Philips Head Screws.
Symphony Track
Busbars/10 Gauge
Locking Screw
Slotted Screws
for Bus Bars
Slotted Screws
for Transformer Feed
12V or 24V
Feed from
Transformer
MLA-1 Cover
Mounting Screw
MLA-2 Straight Connector and
MLA-12 Right Angle Joiner/“L” Connector: Figure 2
• Remove the (1) dead end and (1) MLA-1 end feed connector from the
track assembly.
• Remove the covers from the MLA-2 or MLA-12 connectors.
• Slide the terminal blocks onto the track bus bars by 5/16", tighten the
slotted and locking screws.
• Connect the 12V conductors to the terminal block using the slotted set
screws. MAKE SURE ALL CONNECTIONS ARE TIGHT!
• Properly attach the covers to the terminal block assemblies.
• Save the extra components in case of emergency.
Continued on page 3
Dead End
Busbars
End Feed
Connector
(MLA-1)
10 Gauge Wires
End Feed
Terminal Block
End Feed
Terminal Block
Slotted
Set Screws
Locking Screw
Right Angle
Cover
OR
Straight Connector
Cover
All specifications subject to change without notice.
1-847-559-5500
www.con-techlighting.com
This document can be recycled.
SYM INST 2
For Con-Tech Lighting Symphony Low Voltage Track System
MLA-3 Flexible Connector: Figure 3
Dead End
• Remove the (1) dead end and (1) MLA-1 end feed connector from the
track assembly.
• Remove the covers from the MLA-3 assemblies.
• Slide the MLA-3 terminal blocks onto the track bus bars by 5/16", tighten
the slotted and locking screws.
• Connect the 12V conductors to the terminal block using the slotted set
screws. MAKE SURE ALL CONNECTIONS ARE TIGHT!
• Properly attach the MLA-3 covers to the terminal block assemblies.
• Save the extra components in case of emergency.
Busbars
End Feed
Connector
(MLA-1)
Flexible Wire Sleeve
End Feed
Terminal Block
End Feed
Terminal Block
Locking
Screw
MLA-3
Cover
MLA-3
Cover
6-32 Screw
6-32 Screw
MLA-8 Conduit Feed: Figure 4
• Attach the Conduit or BX (Flexible Conduit) to the MLA-8 backplate either
through the end 7/8" hole or through the back 7/8" pryout. (Connectors
supplied by others)
• Remove and set aside the end feed connector (MLA-1) from the track.
• Fasten the Conduit feed backplate portion to the track. Tighten the
locking screw.
• Insert the busbar into the terminal block by 5/16". Tighten the slotted
screws.
• Mount the Symphony track to the ceiling (2', 4', & 6' pieces have 2
mounting holes, 8' pieces have 3 mounting holes). Toggle bolts and
screws are provided with the track.
• Connect the 12V secondary wires from the transformer to the terminal
block using the slotted set screws. MAKE SURE ALL CONNECTIONS
ARE TIGHT!
• Properly secure the cover to the backplate.
ML8
Backplate
Flexible Conduit
Connector
10 Gauge
Transformer
Secondary
12V Wires
End Feed
Terminal Block
Locking Screw
End Cut Out
ML8 Cover
Continued on page 4
All specifications subject to change without notice.
1-847-559-5500
www.con-techlighting.com
This document can be recycled.
SYM INST 3
For Con-Tech Lighting Symphony Low Voltage Track System
MLA-9 Outlet Box/T-Bar Ceiling Feed
Outlet Box Feed: Figure 5
• Attach the back mounting plate onto the octagon (8B) outlet box by (2)
8-32 screws provided on the outlet box
• Remove and set aside the cover from the MLA-1 end feed connector.
• Mount the terminal block to the mounting plate using a 6-32 x 1/2" screw.
• Mount the Symphony track to the ceiling (2', 4', & 6' pieces have 2
mounting holes; 8' pieces have 3 mounting holes). Toggle bolts and
screws are provided with the track. The copper bus bars must be
inserted into the terminal block for 5/16".
• Connect the 12V secondary wires from the transformer to the terminal
block using the slotted set screws. MAKE SURE ALL CONNECTIONS
ARE TIGHT!
• Properly secure the cover to the mounting plate with (2) 6-32 x 1/2"
Philips Head Screws.
• If feeding two pieces of track at 180º, carefully remove the cutout in the
canopy.
10 Gauge
Transformer
Secondary
12V Wires
MLA-9
Mounting
Plate
End Feed
Terminal Block
6-32 x 1/2" Screw
T-Bar Ceiling Feed: Figure 6
• Attach the LA-1 T-Bar clip (Ordered separately) to the 15/16" Grid.
• Install the back mounting plate onto the 8-32 x 5/8" stud (Trim to size)
with the barrel nut. The center hole on the plate is 3/16".
• Properly connect the 12V secondary wires to the back mounting plate by
using 1/2" conduit and BX fittings (Provided by others). The plate has (2)
7/8" knockouts for conduit.
• Mont the terminal block to the mounting plate using a 6-32 x 1/2" screw.
• Mount the Symphony track to the ceiling (2', 4', & 6' pieces have 2
mounting holes; 8' pieces have 3 mounting holes). The LA-1 T-Bar Clip
(Ordered separately) should be used for mounting. The copper bus bars
must be inserted into the terminal block for 5/16".
• Connect the 12V secondary wires from the transformer to the terminal
block using the slotted set screws. MAKE SURE ALL CONNECTIONS
ARE TIGHT!
• Properly secure the cover to the mounting plate with (2) 6-32 x 1/2"
Philips Head Screws.
• If feeding two pieces of track at 180º, carefully remove the cutout in the
canopy.
MLA-9 Cover
4-11/16" Square
Single or Dual Feed 180°
Flexible
Conduit
LA-1
15/16" Grid
Twist Fastener
with #8-32 x 5/8"
Stud Size
MLA-9
Mounting
Plate
Brass Nut
All specifications subject to change without notice.
1-847-559-5500
www.con-techlighting.com
This document can be recycled.
SYM INST 4