03 POWER ELECTRONICS AND CABINET FEATURES
3BHS842007 E01 REV C
ACS6080
USER MANUAL
Figure 3-32 IAC label example
IMPORTANT!
The Main Circuit Breaker (MCB) for the drive fulfills the APR
(Associated Protection Requirement) without the need for additional
devices. The MCB requirements are described in “2.7 Important note -
main circuit breaker” on page 45.
3.8
Busbars and grounding
The ACS6080 drive contains busbars for various types of connections.
Figure 3-33 Busbars
3.8.1
AC busbars
The incoming feeder and motor cables are connected to their
corresponding busbars inside a TEU. In multi-motor drives, several TEUs
are part of the drive lineup.
Depending on drive configuration, the incoming busbars are
interconnected with the ARU or the LSU. The outgoing busbars are
interconnected with the inverter unit(s). Phase designations help
identifying the busbars.
IAC
IEC 62477-2
3BHB049908R6220
F
L
R
T
B
APR
SC
I
A
t
A
2b
0.3
0.3
0.3
-
-
2b
2b
1
1
20 kA 0.5 s
Yes
No
Distance [m]
Internal Arc Classification (IAC)
ABB Class II
