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Supplying a gate operator with the correct electrical service is crucial to the performance of the operator and
the life of its electrical components. If the wire size used is too small, the voltage loss, especially during motor
startup, will prevent the motor from attaining its rated horsepower. The percentage of horsepower lost is far
greater than the percentage of voltage loss.
A voltage loss can also cause the control components to chatter while the motor is starting, substantially
reducing their life due to the resultant arcing. There is no way to restore lost performance resulting from
undersized wires, except to replace them. To avoid costly rewiring, be sure to choose a sufficient wire size
during site planning phases and at initial installation.
The tables on the following page are based on copper wire and allow for a 5% voltage drop. The ampere
values shown are the service factor ampere rating of the motor (maximum full load at continuous duty). At
minimum, a 20A circuit (protected with a 20A Inverse Time Breaker) should be provided.
Always connect electrical power and ground the operator in accordance with the NFPA 780 & NEC, Article 430
and Article 250. Research and adhere to other local codes that may apply.
Low Voltage Control Wiring
The Smart Touch Controller has very sensitive control inputs. The following is a chart of maximum distances for
wire size:
Wire Size
Maximum Distance
18 ga
7.0 miles (11 km)
20 ga
3.5 miles (5.6 km)
22 ga
2.7 miles (4.3 km)
24 ga
2.0 miles (3.2 km)
26 ga
1.0 mile (1.6 km)
28 ga
3700 feet (1.1 km)
© 2018
Power
MX3636-01 Rev. D
17
Summary of Contents for HSG80F
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