Category C4; Ul Marking; Ul Checklist - ABB ACS880-04 Hardware Manual

196 Technical data

Category C4


If the provisions under
be met as follows:
1. It is ensured that no excessive emission is propagated to neighboring low-voltage
networks. In some cases, the inherent 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.
Neighboring network
Point of measurement
Low voltage
Equipment
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.

UL marking

The drive modules are cULus Listed.

UL checklist

•
Make sure that the drive type designation label includes the cULus Listed marking.
•
CAUTION - Risk of electric shock. After disconnecting the input power, always wait
for 5 minutes to let the intermediate circuit capacitors discharge before you start
working on the drive, motor or motor cable.
•
The drive is to be used in a heated, indoor controlled environment. The drive must be
installed in clean air according to the enclosure classification. Cooling air must be
clean, free from corrosive materials and electrically conductive dust.
•
The maximum surrounding air temperature is 40 °C (104 °F) at rated current. The
current is derated for 40 to 55 °C (104 to 131 °F).
•
The drive is suitable for use in a circuit capable of delivering not more than 100,000 rms
symmetrical amperes, 600 V maximum when protected by the UL fuses given in the
table on page 182.
appropriate UL standard.
Category C3 cannot be met, the requirements of the standard can
Medium voltage network
Low voltage
Equipment
(victim)
The ampere rating is based on tests done according to the
Supply transformer
Static screen
Drive
Equipment