WAC Lighting Low Voltage Duorail Monorail Installation Instructions & Frequently Asked Questions

WAC Duorail
Two Circuit Monorail System

Offering the sleek look of a monorail, but engineered for more capacity and control, featuring two circuits that can be independently switched or dimmed. Choose from hundreds of Quick Connect pendants and fixtures. Duorail is the thinnest two-circuit low voltage system in the industry at just.75" high and a.5" wide and maintains a maximum capacity of 50 amperes for demanding rail applications.

Each circuit uses up to 300 watts at 12 volts or 600 watts at 24 volts. For large applications both circuits can be switched together for up to 1,200 watts at 24 volts. Precision fabricated brass components and electroplated solid copper conductors ensure durability and reliability.

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Available in Dark Bronze or Brushed Nickel finish. Easily shaped in the field to fit any space. An ideal modern upgrade on traditional track lighting for, residential and commercial interiors.

Transformer Selection Guide:
Either electronic or magnetic transformers can power DuoRail. Electronics are smaller than magnetic. The larger magnetic transformers have greater wattage capacities. There is a lesser degree of voltage drop in a magnetic transformer, making them a more practical choice for longer runs (see voltage drop guidelines). Electronic transformers offer quieter operation than magnetics, making them a more practical choice for quiet settings. Magnetic transformers generally contain less components making them among the most reliable power sources.

Either transformer can be used with dimmer switches. An electronic transformer will work with most standard incandescent dimmers. A magnetic transformer generally requires a low voltage dimmer specifically made for magnetic loads. However some of our remote magnetic transformers have the ability to be dimmed with standard incandescent dimmers. Consult our factory for details.

Because the DuoRail system works with 12 or 24 volts we offer transformers for either voltage. The maximum amperage of the rail is 50 amps（one circuit is 25 amps）. You may run 600 watts on a 24 volt system (25 amps) or 300/600 watts on a 12 volt system ( also 25 amps). Our 600 watt transformers are offered in 12 or 24 volts, however the 12 volt version has two outputs with 300 watts available at each.

Transformers are available as surface mounts or remote.
To use see instructions furnished with the transformer.

Debuzzing coil:
Inherent with all magnetic transformers is an audible buzz, mostly when dimmed. To lessen the noise, our surface mount transformers are supplied with a factory installed debuzzing coil (or choke). The debuzzing coil is an option on remote magnetic transformers. Debuzzing coils are installed between the switch and transformer on the black (hot) primary wire.

Duorail System Frequently Asked Questions

Is your low voltage Duorail system UL listed?
Yes. It is UL & CUL listed for both the United States and Canada

What components do I need to build a complete Duorail system?
The basic components of a Duorail system are as follows:

• Transformer
• Power feed
• Rail / Connectors
• Rail support
• Fixtures / Pendants
• Duorail Quick Connect Adapters

What is the capacity of Duorail ?
Duorail is rated at 25 amps: this means a 12 volt system has a maximum capacity of 2 x 300 watts. A 24-volt system has a maximum capacity of 2 x 600 watts.

What if I need more wattage?
You can use more than one power feed. Utilizing multiple power feeds between non-conductive I-connectors (I-DEC) gives you the appearance of one continuous run. Each section can then have up to 2 x 300W at 12V (or 2 x 600W at 24V).

How long can I make a Duorail system?
There are two considerations, capacity and voltage drop. In terms of capacity, it can have as many power feeds as is necessary to support the wattage. In terms of voltage it is limited to the distance power can travel through the rail.

When powering from a remote transformer, what gauge of wire should I use between the transformer and the power feed?
A minimum 10-AWG wire should be used. Heavier gauge wire is needed if the transformer is not within close proximity to the power feed. See page 169 in WAC Lighting's main catalog for the corresponding voltage drop chart.

When I installed a dimmer on my Duorail System, the transformer started to buzz, what can I do about it?
Check that you have the correct dimmer switch for the type of transformer you are using (i.e. electronic low voltage dimmer with a electronic transformer, low voltage magnetic dimmer with a magnetic transformer). An integral de-buzzing coil is included with all of our surface mounted magnetic transformers. However an additional in-line de-buzzing coil
(model# LM2-DBC12XXXXXX) between the dimmer and transformer is available to further reduce buzzing.

How does the Duorail attach to the ceiling?
The most common method is by using rigid standoffs, which are available in various lengths. We recommend 3 supports for an 8ft section of rail however a tightly curved rail may require more. We offer two variations of standoffs, one to fit on standard T-bar grid ceilings, and one to fit sloped ceilings. Additional cables are available 96" in length and are easily adjustable to shorter lengths.

Are the rigid standoffs field-cuttable?
Yes. The standoffs may be easily cut to custom lengths. The standard sizes range from 3" to 5.75" and additional rods are available up to 48".

Can I get longer standoffs?
Longer standoffs are accomplished by using a coupler to join two rods together.

Can I bend the Duorail in the field?
Yes. We recommend using our bending machine (HM-BM).

Can I field cut the Duorail ?
Yes. The Duorail is field-cuttable

Are all Quick Connect fixtures compatible with the Duorail ?
Yes. You may connect any of our Quick Connect pendants or fixtures to the Duorail .

What is the difference between using a surface mount transformer and a remote transformer?
The surface mount transformers are mounted above the Duorail, and can be seen on the surface of the ceiling. The remote transformer power feeds can be operated from further away, or in the ceiling, so they will not be seen.

How is the Duorail System sustainable?
The Duorail ™ uses LEDme® pendants and fixtures featuring state-of-the-art LED technology, as well as low voltage halogen elements. The Duorail ™ System has a Five-Year Warranty and is Responsibly produced in WAC's clean, zero landfill manufacturing campus.

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