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What is the difference between the shunt XF coil and the shunt XFCOM coil?

XF & XFCOM technical differences

Product Line:
Molded Case Circuit Breaker

Masterpact Circuit Breaker Accessory

The Shunt close (XF) remotely closes the circuit breaker if the spring mechanism is charged. Once voltage is present on the coil, it will close the breaker. 

The Shunt Close with Communications (XFCOM) needs a third hot wire from a different power source. This needs constant control voltage and must be connected via the circuit breaker communication module (BCM).
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