ABB ACS1000, User Manual

Page: 46 / 166

POWER ELECTRONICS AND CABINET FEATURES
PRODUCT
ACS1000W
DOCUMENT KIND
User manual
DOCUMENT ID.
3BHS213400 E01
REV.
J
LANG.
en
PAGE
46/166
3.7. Arc resistant design (optional)
The optional “Arc Resistant Design” provides the drive with arc fault protection in
accordance with IEC 62477
- 2.
The ABB arc resistant classes in Table 3 - 4 indicate the type of arc proofing that a
drive has. Depending on the drive configuration, classes I, II and III are available for
an ACS1000W.
For information on the arc resistant design class of your drive, see the project-
specific “Converter Data Sheet” (“Appendix B
- Technical data” of the ACS1000W
user manual).
3.7.1. Internal arc classification
The arc fault rating, which is based on arc fault tests, is on the label underneath the
drive rating plate on the control compartment door of the drive.
Figure 3 - 15 IAC label example
3.7.2. Power compartment doors
As part of the arc resistant design of the drive, the doors of the power
compartments must be secured with bolts and washers, which are in a bag
(Fig. 3
- 16) in the loose parts box. The drive frame has captive nuts for the bolts.
Figure 3 - 16 Door bolts
Table 3 - 4 ABB arc resistant classes
ABB class Description
Class I Protection based on arc prevention (NOT certified according to IEC 62477-2)
Class II
Protection based on arc resistant cabinet structure
(1)
(1)
IAC certified by 3rd body according to IEC 62477 - 2
Class III Protection based on external arc fault limitation and elimination. HV fuses
are applied externally to limit the arc fault current
(1)
Class IV
Fast arc detection and elimination
(1)
IAC
IEC 62477-2
3BHB049908R1206
F L R T B APR SC I
A
t
A
2b
0.3 0.3 0.3 - -
2b 2b 1 1 6 kA 0.5 s Yes No
Distance [m]
Internal Arc Classification (IAC)
ABB Class II