Power Connection Tightening Torque
Size
in-lb (Nm)
in-lb (Nm)
Notes:
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Strip the motor and power cables as shown above.
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Both UL and IEC tools may be used
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Applies to strained wire, solid wire, or
ferrule installations
Circuit Breaker Sizing
The circuit breaker selected must be in accordance with the National Electric Code (NEC) Requirements. The NEC
determines that circuit breakers should handle 80% of their rated capacity for continuous loads and 100% for
intermittent loads. NEC Articles 210.20, 215.3, and 430 address the NEC requirements in more detail. For safety
reasons it is recommended to assume all loads are continuous.
To explain the process for finding the minimum breaker size necessary, please complete the following:
1.
Find your total current load of the circuit (ex: 13.7)
2.
Multiply your current load by 1.25 to find your minimum breaker size (ex: 13.7*1.25=17.125)
3.
Find the correct breaker to match the size you found in #2. If it is not a standard size, per the NEC, select the next
standard size up. For our example we would select a 20A breaker.
Control wire
in-lb (Nm)