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5.2 EMC requirements (Electromagnetic compatibility)
The EMC requirements differ between two environments which depending on the intended
use.
• First environment – class B (EN 61800-3: Class C2)
Environment that includes domestic premises, it also includes establishments directly
connected without intermediate transformers to a low-voltage power supply network
which supplies buildings used for domestic purposes.
E.g. Houses, apartments, commercial premises or offices in a residential building are typical
examples of first environment locations.
Be careful
: The relevant EMC regulations for which the HYDROVAR is tested in the first
environment consider that the HYDROVAR is a restricted available product. That means the
voltage of the inverter is less than 1 000 V, it is neither a plug in device nor a movable
device and, when used in the first environment, is intended to be installed and
commissioned only by a person or an organisation having necessary skills in installing
and/or commissioning power drive systems, including their EMC aspects.
• Second environment – class A (EN 61800-3: Class C3)
Environment that includes all establishments other than those directly connected to a low
voltage power supply network which supplies buildings used for domestic purposes
E.g. Industrial areas, technical areas of any building fed from a dedicated transformer are
typical examples of second environment locations.
The HYDROVAR complies with the general EMC regulations and is tested according
to the following standards: EN 61800-3/2005
EN 55011 (2002) Disturbance voltages / Disturbance field strength
First environment
– class B / class C2
Second Environment
– class A / class C3
Disturbance voltages OK OK
Disturbance field stength *) OK
*) Warning - In a domestic environment, this product may cause radio interference, in which case
supplementary mitigation measures may be required.
EN 61000-4-2 (2001) Electrostatic Discharge
EN 61000-4-3 (2002) Electromagnetic field immunity test
EN 61000-4-4 (2001) Burst Immunity Test
EN 61000-4-5 (2001) Surge Immunity Test
EN 61000-4-6 (1996) Immunity of Conducted RF-Disturbance
EN 61000-4-11 (2001) Voltage dips and interruptions