ABB ACH550-02-645A-4 [423/454] Second environment drives of category c3

Technical data 419

ACH550-02 User’s Manual

First environment includes establishments connected to a low-

voltage network which supplies buildings used for domestic

purposes.

Second environment includes establishments connected to a

network not directly supplying domestic premises.

Drive of category C1: drive of rated voltage less than 1000 V,

intended for use in the first environment.

Drive of category C2: drive of rated voltage less than 1000 V and

intended to be installed and commissioned only by a

professional when used in the first environment.

Note: A professional is a person or organisation having

necessary skills in installing and/or commissioning power drive

systems, including their EMC aspects.

Category C2 has the same EMC emission limits as the earlier

class first environment restricted distribution. EMC standard

IEC/EN 61800-3 does not any more restrict the distribution of

the drive, but the using, installation and commissioning are

defined.

Drive of category C3: drive of rated voltage less than 1000 V,

intended for use in the second environment and not intended for

use in the first environment.

Category C3 has the same EMC emission limits as the earlier

class second environment unrestricted distribution.

Compliance with the IEC/EN 61800-3 (2004)

The immunity performance of the drive complies with the

demands of IEC/EN 61800-3, category C2 (see page 418 for

IEC/EN 61800-3 definitions). The emission limits of the drive

(frame size R8) do not comply with the demands of

IEC/EN 61800-3, category C2. The emission limits of the drive

(frame size R8) comply with category C3 with the provisions

described below.

Second environment (drives of category C3)

1. The motor and control cables are selected as specified in

this manual.

2. The drive is installed according to the instructions given in

this manual.

3. The maximum motor cable length is 100 m (330 ft).