We reserve the right to make changes of a technical nature 109
Inspection and maintenance
Check that the type plate / labelling of the switching
device combination is legible
Clean if necessary, ensure legibility
Documentation / records for completeness /
legibility
Ensure completeness and legibility
9.3 Cleaning
Contamination must be cleaned up to ensure safe operations.
Dirt deposits can lead to overheating. Comply with these minimum safety aspects when cleaning:
External cleaning (external door and blind frame)
Ordinary persons are permitted to clean the exterior (with plain door) of distribution boards (DBO) in accord-
ance with EN 61439-3 that can be operated by ordinary persons.
- Clean the door and blind frame from the outside with a dry, lint-free cloth
- Do not use abrasive cleaning agents!
- Do not use liquids and do not clean wet!
Internal cleaning by qualified electrician only
- The interior of the switching device combination must be cleaned by a qualified electrician with the power
supply switched o
- Clean the switching device combination with a vacuum cleaner and dry cloths only (dry cleaning with
suction). During cleaning work, an electrostatic charge of the steel nozzle can cause direct and indirect
danger for sta.
- Do not use compressed air for cleaning the device!
- Do not wet clean the device!
- Remove all contamination
- Hager oers a cleaning agent for plastic surfaces under order number VZ404.
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