Low voltage wire size table – LBL Lighting MO Rmt Elec Xfmr 300w 120v/12v DC User Manual

Page 3

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CONDUIT

LOW VOLTAGE
WIRES

3

1C

Install a conduit from the transformer to the electrical
box.

For the best performance, use the "Low Voltage Wire
Size Table" below to select the wire size.

Install the low voltage wires from the transformer to the
electrical power feed box.

Connect one red transformer wire to each low voltage
wire with a wire nut.

8

9

10

11

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.

TRANSFORMER
WATTAGE

WIRE SIZE
FOR 5 FT

WIRE SIZE
FOR 6-15 FT

WIRE SIZE
FOR 16-20 FT

WIRE SIZE
FOR 21-40 FT

WIRE SIZE
FOR 40-60 FT

WIRE SIZE
FOR 61-90 FT

LOW VOLTAGE WIRE SIZE TABLE

300 WATT

#6 GA

#4 GA

#1 GA

#1/0 GA

#3/0 GA

#10 GA

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