Siemens SENTRON 3WL10 - Use in IT Systems

Note
All values refer to the withdrawable breakers and 󹪝xed-mounted breakers and to the conductor
cross-sections stated in the table in Section Installation in the switchboard (Page 138) 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).
4.1.6 Use in IT systems
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 certi󹪝cations
Application planning
4.1Types of installation and installation locations
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Equipment Manual, 10/2023, L1V30499596002-03 137