Alternate Short-Circuit Protection; Miniature Circuit Breakers (Iec Environment) - ABB ACH480 Hardware Manual

90 Technical data

Alternate short-circuit protection

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Miniature circuit breakers (IEC environment)

The protective characteristics of the circuit breakers depend on their type,
construction and settings. There are also limitations pertaining to the short-circuit
capacity of the supply network. Your local ABB representative can help you to select
the circuit breaker when the supply network characteristics are known.
WARNING! Obey the installation instructions of the circuit breaker
manufacturer. If there is a short circuit, hot ionized gases can escape from the
circuit breaker.
You can use the circuit breakers listed below. You can also use other circuit breakers
with the same electrical characteristics. ABB does not assume any liability
whatsoever for the correct function and protection with circuit breakers not listed
below. If the recommendations given by ABB are not obeyed, the drive can
experience problems the warranty does not cover.
Note: Miniature circuit breakers with or without fuses have not been evaluated for
use as short circuit protection in USA (UL) environments.
Type
ACH480-04-...
3-phase U = 380...480 V (380, 400, 415, 440, 460, 480 V)
N
02A7-4
03A4-4
04A1-4
05A7-4
07A3-4
09A5-4
12A7-4
018A-4
026A-4
033A-4
039A-4
046A-4
050A-4
1) Maximum allowed rated conditional short-circuit current (IEC 61800-5-1) of the electrical power network.
ABB miniature circuit breaker
Frame
R1
R1
R1
R1
R1
R1
R2
R3
R3
R4
R4
R4
R4
Type
S 203P-B 6
S 203P-B 6
S 203P-B 8
S 203P-B 10
S 203P-B 16
S 203P-B 16
S 203P-B 25
S 203P-B 32
S 203P-B 50
Contact ABB
Contact ABB
Contact ABB
Contact ABB
1)
kA
5
5
5
5
5
5
5
5
5