TERASAKI AME Series, Instruction Manual

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KRB-5200h
-19-
4.3.2 Manual Operation
The manual operating handle is intended to be used for maintenance or inspection, or if operating
power fails.
1) ON or OFF/Reset operation
Warning

Never touch live terminal parts
Otherwise, electric shock may result.
Pulling down the manual operating handle will open (OFF) and close (ON) the ACB alternately.
Perform the same operation to reset the ACB.
ACB type Handle operation angle
AME3B, AME4B Approx. 85
°
AME6B Approx. 125
°
AME8B, AME10B
Approx. 125
°
Caution : When the lock plate is drawn out, the manual operating handle cannot be removed.
Make sure the lock plate is pushed in securely before removing the manual operating handle.
Caution : The ACB equipped with the undervoltage trip device (UVT) cannot be closed unless
the UVT coil is excited.
Caution : Do not apply excessive force to the manual operating handle. Doing so may cause
damage to the handle.
Resetting the ACB after tripping, however, will require the sufficient operating force shown in the
table below:
ACB type
Handle operating force N
ON - OFF Reset
AME3B, AME4B 120 130
AME6B 90 170
AME8B, AME10B 170 260
Caution : When the manual operating handle is pull down while control voltage is applied to the
motor operator, the closing spring is automatically discharged or motor-charged immediately after
the handle is retracted. Turning on control voltage after handle operation without control voltage
will also cause the same action. This mechanism is provided to make the operator ready for the
next motorized operation.
2) Trip button
The trip button is to be used to check the tripping mechanism or the alarm switch, or to trip the
ACB in emergency. Pressing the trip button will trip open the ACB.
ACB
Motor operator
Manual operating handle