- For the MCCB NSX type,
the Orange LED in the front panel is the Pre-alarm default set for overload,
this LED is flashing when the flowing current is > 90 % of Ir as a pre-alarm for Overload soon condition
the Orange LED in the front panel is the Pre-alarm default set for overload,
this LED is flashing when the flowing current is > 90 % of Ir as a pre-alarm for Overload soon condition