Siemens 3VA1 100 A Manual page 66

Description
2.5 Standards and guidelines
Note
In addition to the clearances stated above, any insulating equipment that might be required
must also be considered, see chapter Insulating equipment (Page 191).
It must be ensured that the cable or busbar connection does not reduce the air insulation
clearance.
Accessory components can increase the width or height of the molded case circuit breaker.
In this case the minimum clearances apply from the corresponding sides of the overall
molded case circuit breaker/accessory combination.
NOTICE
Damage to the molded case circuit breaker and the system
Depending on the application, larger minimum clearances may be necessary.
Please observe the specifications regarding air and creepage distances in the applicable
overriding guidelines (e.g. IEC 61439).
66
3VA molded case circuit breakers
Manual, 04/2015, A5E03603177010-02