How to Select An Output Voltage Tap for Safety Volt Tranformer Installation

Safety Volt Swimming Pool Transformers are manufactured with models that have 12V outputs and models with multiple outputs of 12, 13 and 14 volts. The size of the wire used to connect the transformer to the light fixture and the wire length will determine which output voltage should be used to deliver the full 12V to the pool light.

To select the proper output voltage on a multiple tap unit, use the Voltage Tap Selection Charts below. Swimming pool lights are generally installed with No. 12, 10 or 8 gauge wire.

Using the chart for the wire sized being used, find the location on the chart where the total lamp wattage column and the distance to the light row intersect. For example, if the distance between the transformer and the light fixture is 75 feet with No. 10 gauge wire being used, the chart indicates a 13V output tap should be used.

#6 Wire Tap Selection Guide

Wattage 35 70 100 150 175 200 250 275 300
Distance To Light
10ft 12 12 12 12 12 12 12 12 12
25ft 12 12 12 12 12 12 12 12 12
50ft 12 12 12 12 12 13 13 13 13
75ft 12 12 12 12 13 13 13 13 13
100ft 12 12 12 12 13 14 14 14 14
125ft 12 12 13 13 13 14
150ft 12 12 13 13 13 14
175ft 12 13 13 13 14
200ft 12 13 13 14
225ft 12 13 13
250ft 13 13 14
275ft 13 14 14
300ft 13 14 14

#8 Wire Tap Selection Guide

Wattage 35 70 100 150 175 200 250 275 300
Distance To Light
10ft 12 12 12 12 12 12 12 12 12
25ft 12 12 12 12 12 13 13 13 13
50ft 12 12 13 13 13 13 13 13 13
75ft 12 13 13 13 13 14 14 14 14
100ft 12 13 13 14 14 14
125ft 13 13 13 14
150ft 13 13 14
175ft 13 13 14
200ft 13 14 14
225ft 13 14 14
250ft 13 14
275ft 13 14
300ft 13

#10 Wire Tap Selection Guide

Wattage 35 70 100 150 175 200 250 275 300
Distance To Light
10ft 12 12 12 12 12 12 12 12 12
25ft 12 12 12 13 13 13 13 13 13
50ft 12 13 13 13 14 14 14 14 14
75ft 13 13 13 14 14
100ft 13 13 13
125ft 13 14 14
150ft 13 14 14
175ft 13 14
200ft 13
225ft 13
250ft 14
275ft 14
300ft 14

#12 Wire Tap Selection Guide

Wattage 35 70 100 150 175 200 250 275 300
Distance To Light
10ft 12 12 12 12 12 13 13 13 13
25ft 12 12 13 13 13 13 14 14 14
50ft 13 13 13 14 14 14 14 14
75ft 13 13 14
100ft 13 14
125ft 13 14
150ft 13 14
175ft 14
200ft 14
225ft 14
250ft 14
275ft 14
300ft 14


Safety Volt Transformer - Manufactured by AquaCal AutoPilot, Inc. | 2737 24th Street North | St. Petersburg, FL 33713 | 727.823.5642