Alternate short-circuit protection
￭ Miniature circuit breakers (IEC)
Note: Miniature circuit breakers with or without fuses have not been evaluated for use as
short circuit protection in North America (UL) environments.
The protective characteristics of the circuit breakers depend on the type, construction and
settings of the breakers. There are also limitations pertaining to the short-circuit capacity of
the supply network. Your local ABB representative can help you in selecting the breaker
type when the supply network characteristics are known.
WARNING!
Due to the inherent operating principle and construction of circuit breakers,
independent of the manufacturer, hot ionized gases can escape from the breaker
enclosure in case of a short-circuit. To ensure safe use, pay special attention to
the installation and placement of the breakers. Obey the manufacturer’s instructions.
You can use the circuit breakers specified by ABB. You can also use other circuit breakers
with the drive if they provide the same electrical characteristics. ABB does not assume any
liability whatsoever for the correct function and protection of the circuit breakers not specified
by ABB. Furthermore, if the specifications given by ABB are not obeyed, the drive can
experience problems the warranty does not cover.
Network SC
1)
ABB miniature circuit breakerFrameIEC type
ACS480-04-…
kAType
3-phase U
N
= 400 V
5S 203P-B 6R102A7-4
5S 203P-B 6R103A4-4
5S 203P-B 8R104A1-4
5S 203P-B 10R105A7-4
5S 203P-B 16R107A3-4
5S 203P-B 16R109A5-4
5S 203P-B 25R212A7-4
5S 203P-B 32R3018A-4
5S 203P-B 50R3026A-4
5S 203P-B 63R4033A-4
5S 803S-B 80R4039A-4
5S 803-B 100R4046A-4
5S 803-B 100R4050A-4
1)
Maximum allowed rated conditional short-circuit current (IEC 61800-5-1) of the electrical power network.
104 Technical data
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