3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
535
Service and maintenance
5
5.1
Notes
Qualified personnel
It is essential to refer to this documentation when setting up and operating a device/system
described here. The device/system must only ever be serviced and maintained by qualified
personnel. For the purpose of the safety information in these operating instructions, a
"qualified person" is someone who is authorized to energize, ground, and tag equipment,
systems, and circuits in accordance with established safety procedures.
Maintenance category
5.2
Regular maintenance
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.
