Technical data
155
Category C4
If the provisions under Category C3 cannot be met, the use of the drive in the second environment is
also possible if:
1. It is ensured that no excessive emission is propagated to neighbouring low-voltage networks. In
some cases, the natural suppression in transformers and cables is sufficient. If in doubt, the supply
transformer with static screening between the primary and secondary windings can be used.
2. An EMC plan for preventing disturbances is drawn up for the installation. A template is available
from the local ABB representative.
3. The motor and control cables are selected as specified in the Hardware Manual.
4. The drive is installed according to the instructions given in the Hardware Manual.
WARNING! A drive of category C4 is not intended to be used on a low-voltage public network which
supplies domestic premises. Radio frequency interference is expected if the drive is used on such a
network.
“C-tick” marking
“C-tick” marking is required in Australia and New Zealand. A “C-tick” mark is attached to each drive in
order to verify compliance with the relevant standard (IEC 61800-3:2004 – Adjustable speed electrical
power drive systems. Part 3: EMC product standard including specific test methods), mandated by the
Trans-Tasman Electromagnetic Compatibility Scheme. See section Compliance with EN 61800-3:2004
on page 154.
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