KRB-5200h
Installation Precautions
See pages 4 to 8.
Warning
Be sure to open or trip the live ACB before mounting or dismounting it.
Otherwise, a fire or personal injury may result.
Never touch live parts or terminals when mounting or dismounting the live ACB.
Otherwise, electric shock may result.
Caution
Installation work must be performed by competent persons.
Prior to commencing any work on the ACB, stop the generator and open a disconnector or
the like to isolate all sources of power/voltage from both the primary and auxiliary circuits.
Otherwise, electric shock may result.
Be sure to bring the connecting conductors into close contact with the stud bar or the
plug-in mounting base terminal.
Otherwise, a fire could result.
When terminating conductors to the ACB, tighten terminal screws to the torque specified in
this instruction manual.
Otherwise, a fire could result.
Avoid blocking the arc gas vents of the ACB to ensure adequate arc space (insulation
distance).
Blocking the vents could result in failure of ACB tripping.
Do not place the ACB in such an area that is subject to high temperature, high humidity,
dusty air, corrosive gas, strong vibration and shock, or other unusual conditions.
Mounting in such areas could cause a fire, non-tripping, or malfunction.
Be careful to prevent foreign objects (debris, concrete powder, iron powder, etc.) and
rainwater from entering the ACB.
These materials inside the ACB could cause a fire or non-tripping.
Use both hands to support the ACB when mounting or dismounting it. A heavy ACB
should be carried by two persons.
Dropping or toppling the ACB may cause damage to it or personal injury.
OCR Field Tests Precautions
See pages 20, 21, 23 and 25.
Caution
Field tests must be performed by competent persons.
Never touch live terminal parts.
Otherwise, electric shock may result.
For testing of characteristic by injection to terminal: Ka, Kb, Kc, l, injection current should
be cut off immediately after OCR is operated.
Maintenance and Inspection Precautions
See page 28
.
Caution
ACB maintenance, inspection and/or parts replacement must be performed by competent
persons.
Prior to commencing any work on the ACB, stop the generator and open a disconnector or
the like to isolate all sources of power/voltage from both the primary and auxiliary circuits.
Otherwise, electric shock may result.
Retighten the terminal screws periodically to the specified torque.
Otherwise, a fire could result.
Summary of Contents for AME Series
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Page 32: ...KRB 5200h 26 5 3 Operation Characteristic Curves ...
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