Introduction
1.5 Safety instructions
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
12 Manual, 10/2018, L1V30499596002-01
A qualified person for the purpose of this documentation is a person who is familiar with
assembling, installing, commissioning, and operating the product and who has the relevant
qualifications, such as:
● Training or instruction/authorization to close and open, ground, and tag circuits and
devices and systems according to the safety standards.
● Training / instruction in the proper care and use of protective equipment in accordance
with established safety procedures.
● Training in first aid.
The circuit breakers are designed to be operated in enclosed rooms in which the operating
conditions are not affected by dust or corrosive vapors/gases. Suitable enclosures must be
used in dusty or damp conditions. You will find further ambient conditions in Chapter
Application planning (Page 137).
The circuit breaker complies with the standards:
● IE 60947-2
● IEC 60947-3
● EN 60947-2
● EN 60947-3
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