NORD Drivesystems BU0135 - Manual (Page 82)

SK 105E…175E Motor Starter Manual
82 Pre-series version BU 0135 GB-2713
7.3 Electromagnetic compatibility
As of July 2007, all electrical equipment which has an intrinsic, independent function and which is sold as an
individual unit for end users, must comply with Directive 2004/108/EEC (formerly Directive EEC/89/336).
There are three different ways for manufacturers to display compliance with this directive:
1. EC declaration of conformity
This is a declaration from the manufacturer, stating that the requirements in the applicable European standards for
the electrical environment of the equipment have been met. Only those standards which are published in the Official
Journal of the European Community may be cited in the manufacturer’s declaration.
2. Technical documentation
Technical documentation can be produced which describes the EMC characteristics of the device.
This documentation must be authorised by one of the ‘“Responsible bodies” named by the responsible European
government. This makes it possible to use standards that are still under preparation.
3. EC type test certificate (This method only applies to radio transmitter equipment.)
SK 1x5E motor starters only have an intrinsic function when they are connected to other equipment (e.g. with a
motor). The basic units cannot therefore carry the CE mark which would confirm compliance with the EMC directive.
Precise details are therefore given below about the EMC behaviour of this product, based on the proviso that it is
installed according to the guidelines and instructions described in this documentation.
Class A devices (Group 2) :
Class A is for equipment of the normal class and is intended for use in an industrial environment. Devices
which are installed at a location which is covered by this category are not connected directly to the public
low voltage supply grid, but rather, they are connected to an industrial grid with an assigned transformer.
If the standards for equipment class A are not sufficient in a special industrial environment, e.g. if sensitive
measuring channels may be affected, the user must request class B equipment.
Class B equipment:
Class B equipment is required if it is used in a commercial and small-scale industrial environment
and is to
be connected directly to the public low voltage supply grid. The equipment class must be stated by the
manufacturer in the product information.
ATTENTION
SK 1x5E motor starters are designed solely for commercial applications. They are
therefore not subject to the requirements of the standard EN 61000-3-2 for radiation of
harmonics.
This device produces high frequency interference, which may make additional suppression
measures necessary in domestic environments.