Applications
3.6 Applications of the 3VA molded case circuit breaker with frequency converters
3VA molded case circuit breakers with IEC certificate
178 Manual, 03/2019, A5E03603177010-03
If the 3VA2 molded case circuit breaker with communication is used, it must be ensured that
only one 24 V DC power supply unit is used in the system. If this power supply unit is
installed on the primary side, the cable must have additional shielding and must be
connected to ground. Interruptions in communication might otherwise occur.
You can find tables of tested protective devices for SINAMICS PM240-2 Power Modules on
the Internet (https://support.industry.siemens.com/cs/ww/en/view/109486009
).
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