Operation; Switching Operation - Mitsubishi Electric C Series Handling And Maintenance

2.2 Operation

2.2.1 Switching operation

Electric power can be turned ON/OFF by moving the handle up/down.
Note 1. Never apply any excessive impact to the handle.
Note 2. When the extension handle is used, fix it firmly with screws. After use, remove the extension
handle quickly.
Note 3. ON, OFF operation must operate quickly and correctly. Otherwise it may cause open phase
with a few time when operated slowly in case of some types of breakers.
Operating method and condition of the circuit breaker are illustrated below.
1 1 Closing (ON) 1
1 1
Switch on the
power (closing)
2 Opening (OFF) 2 2
2 2
Switch off the
power (opening)
ON operation
Moving the handle upward closes
the circuit.
OFF operation
Moving the handle downward opens
the circuit.
ON state indication
ON
mark appears
on red back-
ground.
A white
line
appears.
OFF state indication
OFF mark
appears on
green
background.
6