Unique issues exist in identifying

Unique
issues
exist in
identifying
when a MCCB
should be
considered
as a candidate to be replaced. By nature of the
component itself, manufacturers of these products assemble,
calibrate, test and then many times seal the molded cases ofthese devices. There are typically no internal serviceable
parts and breaking the factory seal generally results in
jeopardizing the manufacturer’s warranty. Because of issues
inherent to the product design, historically the maintenance of
MCCBs by the end user has been limited to mechanical
mounting, electrical wiring and manual operation of the
mechanism.