Instructions

05/05/05 Rev 1
Installing Transformer:
1. The junction box will support the entire weight of the
transformer, make sure it is adequately braced and
supported. Extension wires are supplied to connect
junction box wires to the transformer input wires.
Connect white neutral wire to white wire, and black hot
wire to black wire with wire nuts. The ground wire may
be green or bare copper, connect it to the green
extension wire
2. Pass the open ends of the wires through the center
hole of the cross bar/ threaded tube assembly, and
mount cross bar to junction box as shown
3. Open the transformer case by removing the three
screws on the perimeter. The cover halves will
separate but not detach, allow the lower half to hang
temporarily
4. Raise the support plate & transformer assembly on to
the threaded tube. Attach the heavy nut to the bottom
of the tube and tighten so the transformer assembly is
close to the ceilling
5. Connect the extension wires to the transformer input
wires, with wire nuts. Follow the previous color code.
6. Position the bottom cover so the power feed adapter
is aligned to receive monorail. Close the bottom cover
and secure with the three secrews removed earlier.
7. Loosen the screw on the rail adapter so that the two
pieces will slip over the rail.
8. Hold the two adapter halves against the rail while
tightening the screw. It is important that the adapters
halves seat firmly against the rail.
9. After the first 20 minutes of operation switch off system
and check for abnormal heat. Hot spots are caused by
poor connection, correct by re-tightening.
Voltage Drop Guideline
Run length
LM-EN12-150E 12V 150W Electronic 30
LM-EN12-250E 12V 250W Electronic 12
Surface mount data based on full load to end of rail.
Note: These models are equipped with electronic
transformers. An electronic low voltage dimmer is
recommended.
High frequency output cannot be read by most standard
multi meters.
The transformers require a minimum load to work properly.
250-watt model has a 100-watt minimum.
100 & 150-watt models have a 60-watt minimum.
Important: If system does not light on first power up,
turn off power and check for shorts with a continuity
tester. Leaving power on will harm the transformer.