Standard
Breakers have 3 power wires in (L1-L2-L3) on the top,
and 3 power wires out (T1-T2-T3) on the bottom.
Any other control wires will indicate some sort of
modification accessory is installed!
By UL code breakers can only be modified at our UL
Approved service facilities.
They cannot be installed in the field or by
distributors. In order to get the correct breaker to
you, it is imperative that we have the correct
information due to the wide variety of options that may
be installed on your current breaker.
Accessories can be identified by small labels on the
breaker, with part numbers such as
a. (u-nzm9) (230, 60) Indicates under voltage
trip which needs 230 volt 60hz applied to turn the
breaker on.
b. (a-nzm9) (230,60) Indicates shunt trip
which needs 230 volt 60hz applied to turn the breaker
off.
c. (rhi, nhi, ahi -xx) Would be auxiliary
contacts.
If
the labels cannot be read or to double check their usage
record all the terminal numbers that have control wires
on them, and your KMparts Specialist will advise
you of your best options.
Please note any of the above when ordering. Also check
to see if they are even used. If they are present but
there are no wires on them then chances are you don’t
need them.