Page 1
Installation Instructions for
120 Volt to 12 Volt DC Single Feed 300W Remote
Electronic Transformers
TRANSFORMERS
250AT300EL
950RM30012EL
1.2
This product requires installation by qualified
CAUTION: RISK OF FIRE
electrician. Before installing be sure to read all
instructions and TURN THE POWER TO THE
ELECTRICAL BOX OFF.
GENERAL PRODUCT INFORMATION:
This transformer is ETL listed for use with low voltage lighting
systems of brands offered by Encompass Lighting Group.
This product is suitable only for indoor dry locations and
approved for use at any height above the finished floor.
A typical installation is shown. Specific installation must be in
accordance with the local electrical codes.
This product may be dimmed only with a low voltage
electronic dimmer. Using a dimmer not designed for low
voltage electronic applications may work initially, but could
eventually cause transformer failure and will void the warranty.
The dimmer must be derated as indicated by the dimmer
manufacturer.
This product is intended for use with Encompass Lighting
Group brands of low voltage lighting systems only.
During installation, make sure all power connections are tight.
Important Safety Information
Do not conceal or extend bus bar conductors through a
building wall.
Do not install this lighting system in a damp or wet location.
To reduce the risk of fire and burns, do not install this lighting
system where the uninsulated open bus bar conductors can
be shorted or contact any conductive materials.
To reduce the risk of the system overheating and possibly
causing a fire, make sure all the connections are tight.
Do not install fixture assemblies closer than six inches to
curtains or similarly combustible materials.
Turn the electrical power off before modifying the lighting
system in any way.
The fixtures used with the system must be identified for use
with the corresponding system.
Minimum volume of the electrical box must be 6 cubic inches
(98 cubic centimeters).
Read all instructions thoroughly. Read "Important Safety
Information" on next column before proceeding with the
installation.
To Reduce Risk of Fire
transformer for the system as described in this installation
instruction.
Load the circuit of the remote transformer to 300
Watt.
1
, it is important to wire the remote
MAXIMUM
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Install the Remote Transformer
1A
TRANSFORMER
COVER
PHILLIPS SCREW
1 1
11
1B
4
CONDUIT
6
3
5
2
2
7
NOTE: In order to use small gage wires from the
transformer to the electrical box, it is recommended to
install the remote transformer near (if possible) the
electrical box. See "Low Voltage Wire Size Table" on
page 3.
Remove the four Phillips screws to remove the
1
transformer cover.
2
Secure the transformer housing in place (hardware not
included).
Install a conduit and power line wires from the panel to
3
the remote transformer.
4
Do not
connect the power line wires to the panel at this
time.
Make sure the transformer housing is grounded in
5
accordance with local electrical codes.
Connect the transformer white wire to the neutral power
6
line wire with a wire nut.
Connect the transformer black wire to the hot power line
7
wire with a wire nut.
2
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1C
CONDUIT
11
10
11
Install a conduit from the transformer to the electrical
8
box.
For the best performance, use the "Low Voltage Wire
9
Size Table" below to select the wire size.
NOTE: Other wire sizes that comply with electrical
code can be used, but may result in an increased
voltage drop and reduced lamp intensity.
NOTE: The THHN wire sizes are for 3% or less drop
in voltage based on 300 watt loads. Lengths are the
distance from the transformer to the system power
feed connector.
10
Install the low voltage wires from the transformer to the
electrical power feed box.
Connect one red transformer wire to each low voltage
11
wire with a wire nut.
LOW VOLTAGE
WIRES
8
LOW VOLTAGE WIRE SIZE TABLE
TRANSFORMER
WATTAGE
300 WATT #6 GA #4 GA #1 GA #1/0 GA #3/0 GA#10 GA
WIRE SIZE
FOR5FT
WIRE SIZE
FOR 6-15 FT
WIRE SIZE
FOR 16-20 FT
3
WIRE SIZE
FOR 21-40 FT
WIRE SIZE
FOR 40-60 FT
WIRE SIZE
FOR 61-90 FT
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1D
12
TRANSFORMER
COVER
14 14
Connect the 120 volt power line wires at the panel.
12
After installing the entire system, operate the system for
13
five minutes. On the low voltage side, all electrical
connection points should be no more than warm to the
touch. If a connection is hot to the touch, retighten the
connection and check to ensure that the temperature
decreases.
14
Replace the transformer cover and tighten the four
Phillips screws.
PHILLIPS SCREW
14
14
SAVE THESE INSTRUCTIONS!
7400 Linder Ave, Skokie, IL 60077
847.410.4400
www.encompasslighting.com
© 2008 Encompass Lighting Group. All rights reserved. The "Encompass Lighting Group"
graphic is a registered trademark of Encompass Lighting Group. Encompass Lighting Group
reserves the right to change specifications for product improvements without notification.
A Generation Brands Company
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