Application planning
4.1 Types of installation and installation locations
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
148
Manual, 10/2018, L1V30499596002-01
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 fixed-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 (figure shows the cross section of the side view):
3WL10
1 circuit breaker per panel width section in the switchboard
Circuit breaker power with rear terminals for main circuit connec-
tion
Horizontally oriented
Vertically oriented
I
u
[A]
Busbar
connection
[mm]
Com-
part-
ment
Ambient temperature
Ambient temperature
35 °C
45 °C
55 °C
35 °C
45 °C
55 °C
630 2 x 40 x 5
2
630 A
630 A
630 A
630 A
630 A
630 A
800 2 x 50 x 5
2
800 A
800 A
800 A
800 A
800 A
800 A
1000 2 x 50 x 10 /
2 x 50 x 8
1)
2
1000 A
1000 A
1000 A
1000 A
1000 A
1000 A
1250 2 x 50 x 10 /
2 x 50 x 8
1)
2
1250 A
1250 A
1200 A
1250 A
1250 A
1250 A
1)
Horizontally oriented: 2 x 50 x 10 mm / vertically oriented: 2 x 50 x 8 mm
