The category C3 includes AC drives that have the nominal voltage of less than 1000 V. These
AC drives are used in the 2nd environment only.
CATEGORY C4
Available for: All products.
These AC drives obey the standard IEC/EN 61800-3 + A1 if they are used in IT systems. In IT
systems, the networks are isolated from ground, or connected to ground through high
impedance to decrease the leakage current.
NOTE!
If the AC drives are used with other supplies, they do not obey the EMC
requirements.
To change the EMC protection category of your Vacon NX AC drive from C2 or C3 to C4, see
the instructions in Chapter 8.5 Installation in an IT system.
NO EMC EMISSION PROTECTION
In IP00.
The AC drives of this category do not give EMC emission protection. These drives are
installed in enclosures.
NOTE!
An external EMC filter is usually necessary to obey the EMC emission
requirements.
WARNING!
In a domestic environment this product can cause radio interference. If necessary,
do the sufficient steps.
9.3.1
ENVIRONMENT DEFINITIONS IN PRODUCT STANDARD IEC/EN 61800-3 + A1
Environment
Description
Examples
First environment
Environment that includes domestic premises.
It also includes establishments directly con-
nected without intermediate transformers to a
low-voltage power supply network which sup-
plies buildings used for domestic purposes.
Houses, apartments, commercial
premises or offices in a residential
building are examples of first envi-
ronment locations.
Second environment
Environment that includes all establishments
other than those directly connected to a low-
voltage power supply network that supplies
buildings used for domestic purposes.
Industrial areas, technical areas of a
building supplied from a dedicated
transformer are examples of second
environment locations.
TECHNICAL DATA FOR NXS AND NXP
VACON · 147
24-HOUR S358 (0)201 212 575 · EMAIL: [email protected]
9
Содержание NXP
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