Applications
3.6 Applications of the 3VA molded case circuit breaker with frequency converters
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
177
Applications of the 3VA molded case circuit breaker with frequency
converters
3VA molded case circuit breakers can be used as protective devices in systems using
frequency converters.
Applications of 3VA1 molded case circuit breakers with frequency converters
The 3VA1 thermal-magnetic molded case circuit breakers can be used on the primary or
secondary side of the frequency converter in these applications.
Applications of 3VA2 molded case circuit breakers with frequency converters
The 3VA2 electronic molded case circuit breakers can only be used on the primary side of
the frequency converter in the specified 50/60 Hz frequency range. Higher or lower
frequencies result in major deviations in measured values with the result that the tripping
characteristic cannot be adhered to.
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