24 VAC Wiring Distances Chart

Recommended maximum distances for 24 VAC with 10-percent voltage drop.
(10-percent is generally the maximum allowable voltage drop for AC-powered devices.)

EXAMPLE: An enclosure that requires 80 vA and is installed 35 feet (10 m)
from the transformer would require a minimum wire gauge of 20 Awg.

NOTE: Distances are calculated in feet; values in parentheses are meters.

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