Recommended maintenance/inspection intervals
Following initial commissioning, the equipment/system must be inspected at least once per year.
In addition, an inspection should be carried out after 1000 trips at rated operational current.
If the molded case circuit breaker or switch disconnector is operated in an atmosphere that is dust-laden or in which corrosive vapors, gases, or salt spray is present, it is advisable to adjust the inspection intervals accordingly, e.g. to twice per year.