To connect a home-run wire to the terminals: For example, you may have six home runs, in which case you would have six wires in the same COM terminal and the other half of the 10-2 wires go into the voltage terminals, which can have multiple runs/wires in each tap as well. You can hook up multiple home runs to each and any of the terminals. So if you have a long run of 100 feet, you may need to use the 15v voltage terminal in order to have 12v of power all the way out at the far away fixtures. For example, with our 300W Multi-Tap Transformer, you can output at a variety of voltages to compensate for voltage drop. The correct voltage terminal is the one that results in an optimal voltage at the fixtures connected to that run. One wire gets connected to the common terminal (labeled “COM”) the other wire connects to a voltage terminal (the colored labels that say 12, 13, 14, etc). Low voltage wire does not have polarity it does not matter which of the two wires connects to the common terminal and which to the voltage terminal, as long as one wire goes to each.
VOLT LANDSCAPE LIGHTING TRANSFORMER HOW TO
How to Connect Lighting Runs to the Transformer This means that the true optimal working capacity of a transformer is about 70% of the transformer’s total capacity.
Furthermore, it is important to account for the loss of current through the wire, which reduces the capacity by an additional 10%. That means that the working capacity is 240W (or 80% of the transformer capacity is smaller than 300W).
VOLT LANDSCAPE LIGHTING TRANSFORMER CODE
Even though the capacity of each common tap is 300W (or transformer capacity if less than 300W), the National Electrical Code specifies that a circuit can only be loaded up to 80% of its maximum.When the transformer capacity is less than 300W, the capacity will be equal to the transformer capacity. These common taps can accommodate up to 300W (25A). On the secondary side (low voltage taps) of the VOLT® 300 Watt (12v-15v) Multi-Tap Low Voltage Transformer, for example, each circuit has its own magnetic circuit breaker (toggle switch) that is connected to a common tap (marked with a “COM” label).A transformer may become hot do not mount on vinyl.The bottom of the transformer must be at least 12 inches from the ground.The transformer must be mounted in a vertical position.Do not use extension cords with transformers.
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