26
BreakMaster Load Interrupter Switch
Section 10 – Troubleshooting
Trouble
Cause
Remedy
If the switch is overheated because of excess current,
one of two remedies can be adopted:
Overload
Replace with a switch of rating adequate for
the present or future loads, or:
Rearrange circuits to remove excess load.
Poor Contact
(Contact out of adjustment)
Adjust Contacts (See Section 4.11.1)
Connections to Switch not of
Increase the capacity of the connections by adding
Overheating
adequate current carrying capacity.
conductors or by replacing with heavier conductors.
Contacts Burned or Pitted
Contacts should be dressed and fitted properly.
(See Section 4.11.1)
Bolts and Nuts of
Tighten all bolts and nuts. (Do not exceed torque as
Connections not tight
per Section 4.2 by more or less than 10 percent. Over-
tightening bolts may cause bolts to exceed their elastic
limit, leading to more loosening of the connections.)
Located in too hot an ambient
Relocate in a cooler place or arrange some means
(40°C Max.). (Such as too close to
of cooling.
a boiler, a furnace or the like)
WARNING
Do not exceed 40°C as maximum ambient temperature.
!
