Siemens SENTRON 3WL10 - Application Planning; Types of Installation and Installation Locations

See also
Use in IT systems (Page137)
4.1.7 Electromagnetic compatibility
The user of speci󹪝c devices in an industrial environment can result in electromagnetic
interference in the electrical installation. The circuit breaker has been developed and tested for
electromagnetic compatibility in compliance with IEC 60947-2, Annexes J and F.
4.1.8 Installation in the switchboard
The switchboard version and the installation and ambient conditions can have a great in󹪞uence
on the ratings of the circuit breakers. The circuit breaker is also optimized for advantageous
switchboard integration and provides savings and reduced engineering in respect of
• Copper busbars
• Connection architecture
• Segregation and internal separation
• Mounting options
In the following mounting conditions (see Section "Power in the switchboard"), the most
important factors have been taken into account that can a󹪜ect the power ratings of the
circuit breaker in the switchboard. These factors are:
• Switchboard type
• Degree of protection of the switchboard
• Separation type 3
• Number of devices that are connected to the same switchboard panel at the same time
• Type of connection and terminal
• Ambient temperature T
a
(IEC61439-1)
• Circuit breaker with guide frame
• Maximum permissible temperature at the terminal 120°C
Power in the switchboard
The following tables provide data about the power of the circuit breaker within the switchboard.
The data communicated are a summary of computer simulations and tests actually performed.
They are valid as guide values both for the 󹪝xed-mounted breakers and the withdrawable
breakers and are not a substitute for an insulation test according to IEC 61439.
The switchboard used in the test has degree of protection IP31 and has the following design
and dimensions (󹪝gure shows the cross section of the side view):
Application planning
4.1Types of installation and installation locations
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
138 Equipment Manual, 10/2023, L1V30499596002-03