About the specification change of the
main breaker for FANUC LASER C series
(5) C6000-E：Rated current 300A, Sensed current 100mA
・Type : EG403C/300-100MA(made by Fuji Electric Co., Ltd.)
・FANUC purchase spec. ; A60L-0001-0424#U300EJE2
・Recommended solderless terminal (in case of the cable 200 mm
MfgCo., Ltd, R200-12 ;NICHIFU Terminal Industries CO., Ltd .
・Maker's recommended torque：45.0[N･m]
3-2. Changing of the Breaker Handle
V type handle is applied by the standard.
This V type handle is equipped with the isolation function that cannot be turned to OFF position
when the contact welding. Moreover, the protective construction satisfies IP54 because it
equips it with dustproof packing by the standard.
And, this V type handle is a structure that the handle installs to the panel side.
Before(N type) After(V type)
3-3．About the function of Shunt Trip
The specification of the shunt trip which make turn off the breaker by DC24V or AC120V voltage
does not change.
However, the method of shunt trip becomes two kinds types, one is supplied
the voltage directly to the breaker, and the other is converted the voltage to add a relay.
(The additional relay is installed in the laser oscillator. )
However, the coil of added relay has the polarity. Therefore, connect PF1 to plus and PF2 to
minus of terminal XT20 for external shunt trip conventionally. When it makes a mistake in the
polarity, the relay might be damaged.