Pool/Spa Underwater Lighting Application
LANDSCAPE LIGHTING APPLICATIONS
INSTALLATION
For field wiring information, please refer to the instructions attached to inside of front cover.
• Make sure that all unused taps (leads) are separately insulated.
• Use the following tables as a guide to determine the correct wire size.
• The voltage at lamp terminals after installation should be 12 ± 0.3 VAC.
• Voltages above 12.3 VAC at the light may cause the internal safety fuse of the transformer to
switch off and on. To prevent this from happening follow chart below for correct voltage and
wire gauge selection.
1. Select power source by combining Bulb wattage.
2. Determine length of cable run(s).
3. Determine wire gauge needed to deliver necessary power.
4. Connect cable to output tap of transformer given in table.
2
• Use only CSA or UL certified low-voltage cable.
• Low voltage cable shall be buried a maximum 6
inches (15.2 cm) in order to connect to the main low
voltage cable.
Transformer Wattage (W) Minimum Gauge AWG
300 12
100 16
Transformer Cable - Voltage Selection Chart
Length of Cable 100 W Transformer
10 ft 13 V 12 V 12 V 12 V 12 V 12 V
25 ft 13 V 13 V 12 V 12 V 12 V 12 V
50 ft 14 V 13 V 13 V 12 V 12 V 12 V
75 ft 14 V 13 V 13 V 12 V 12 V
100 ft 13 V 13 V 13 V 12 V
125 ft 14 V 13 V 13 V 12 V
150 ft 14 V 13 V 13 V 13 V
175 ft 14 V 14 V 13 V 13 V
200 ft 14 V 13 V 13 V
250 ft 14 V 13 V 13 V
Wire Gauge (AWG)
#16* #14 #12 #10 #8 #6
* Minimum Gauge Cable
**Blank fields indicate conditions not suited for wiring
Transformer Cable - Voltage Selection Chart
Length of Cable 300 W Transformer
10 ft 12 V 12 V 12 V 12 V
25 ft 13 V 13 V 12 V 12 V
50 ft 13 V 13 V 13 V 13 V
75 ft 14 V 13 V 13 V
100 ft 14 V 14 V 13 V
125 ft 14 V 13 V
150 ft 14 V 14 V
175 ft 14 V
200 ft 14 V
250 ft 14 V
Wire Gauge (AWG)
#12* #10 #8 #6
* Minimum Gauge Cable
**Blank fields indicate conditions not suited for wiring
Because of our commitment to continuing research and improvements, Intermatic Incorporated reserves the right to make changes, without notice, in the specifications and material contained
herein and shall not be responsible for any damages, direct or consequential, caused by reliance on the material presented.
INTERMATIC INCORPORATED, LIBERTYVILLE, IL 60048
http://www.intermatic.com
LIMITED WARRANTY
Warranty service is available by either (a) returning the product to the dealer from whom the unit was purchased or (b) completing
a warranty claim online at www.intermatic.com. This warranty is made by: Intermatic Incorporated, 1950 Innovation Way, Suite
300, Libertyville, IL 60048.
For additional product or warranty information go to: http://www.Intermatic.com or call 815-675-7000.
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