Application planning
4.1 Types of installation and installation locations
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
146 Manual, 10/2018, L1V30499596002-01
Note
All values refer to the withdrawable breakers and fixed
-mounted breakers and to the
-sections stated in the table in Section Installation in the switchboard
147) and to the overriding standard IEC 60947.
The values do not apply to all mounting conditions for circuit breakers and may deviate
depending upon factors such as packing density, ventilation, internal separation of the
installation, etc.
Please observe the applicable overriding guidelines (e.g.
IEC 61439).
The devices have been tested and are ready for use in terms of their IT network capability
according to IEC 60947-2 Annex H, including maximum rated operational voltage
● 3VA27: 690 V
● 3WL10: 690 V Class N and Class S / 440 V Class B
Failure probability acc. to B10d
● 3WL10 = 20,000 mechanical operating cycles
● 3VA27 = 10,000 mechanical operating cycles
Vibration resistance and shock resistance
The circuit breaker is insensitive to vibrations and meets the requirements relating to
mechanical and electromechanical vibration resistance according to the following standard:
● IEC 60068-2-6
– 1 to 13 Hz with a vibration amplitude of 1 mm
– 13 to 100 Hz with constant acceleration of 0.7 g
● IEC 60721-3-1
– Storage: 1M3
● IEC60721-3-2
– Transport: 2M2
● IEC60721-3-3
– Operating conditions: 3M2
● Shipping register or certifications
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