Class II
14
25’
12
39’
63’
100’
10
8
Max. Length
of Run (ft.)
Wire Size
(Gauge)
15V
300
n/a’
16’
25’
200
15’
23’
37’
14V
300
n/a’
15’
23’
200
13’
22’
34’
12V Length
Wattage
Wire Size (Gauge)
10
12
26’
20’
300W
150W
DC Transformer
12V Length
Wattage
Wire Size (Gauge)
12
25’
50W
AC Transformer
12V Length
Wattage
pr
ima legac
y
tr
ansf
or
mer and v
oltage dr
op inf
or
ma
tion
Magnetic & Toroidal Transformer Information
Electronic Transformer Information
Follo
w all local and na
tional elec
tr
ical c
odes
.
For assistanc
e please call P
rima C
ust
omer S
er
vic
e a
t 562-407-3079
proper usage. Prima low voltage transformers must be used with all Prima Lighting product installations. All warranties are void if Prima transformers are not used.
Prima’s catalogs provide general information and suggestions for proper dimmer usage. Please consult our customer service department with any questions
installation. Adhere to all local and national electrical codes prior to installation.
IMPORTANT: USE ONLY LOW VOLTAGE DIMMERS WITH MAGNETIC & TOROIDAL TRANSFORMERS
Prima recommends the use of 10AWG THHN wire to maintain 25 amp capacity.
(Note: Using a dimmer may shorten the secondary length distance.)
Class I
ELECTRONIC TRANSFORMERS ARE DIMMABLE
Prima recommends the use of 10AWG standard wire on output.
Attach wires firmly with wire nuts.
Watts (VA) Per Circuit
13V
300
n/a’
14’
21’
200
13’
20’
32’
12V
12
300
n/a’
13’
20’
200
12’
19’
30’
10
8
Total Watts on Rail
X
Length of Run
Cable Size Constant
= Voltage Drop
Voltage Drop Formula
Cable Size
(Gauge)
Cable Size
Constant
12
7,500
11,920
18,960
10
8
Wire Size (Gauge)
10
10
12
12
12
5’
8’
10’
15’
30’
300W
200W
150W
100W
50W
AC Transformer
Class II Electronic Transformers
Class I Electronic Transformers
Wire Size
(Gauge)
MUST USE LOW VOLTAGE ELECTRONIC DIMMER TO FULFILL PRIMA WARRANTY.
13615 Marquardt Ave. Santa Fe Springs, CA 90670
Ph. 562-407-3079 . Fx. 562-407-3069
www.primalighting.com
REV. 052416
