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Technical Data
5.2 EMC Requirements (Electromagnetic Compatibility)
The EMC requirements depend on the intended use.
• Class B environment (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. Examples of class B environments include houses, apartments, commercial premises
or offices in a residential building.
Caution: The relevant EMC regulations for which the HYDROVAR was tested in class B environments is
based on the restricted use of the product and the following limitations:1) the drive voltage is less than
1000 V; 2) it is neither a plug in device nor a movable device and, 3) when used in the class B environ-
ment, it is intended to be installed and utilized by technicians with the necessary training and skills
required for installing and/or using power drive systems, including specific training with respect to EMC
requirements.
• Class A environment (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, techni-
cal areas of any building fed from a dedicated transformer are typical examples of class A environment
locations.
The HYDROVAR complies with the general EMC regulations and is tested according to the follow-
ing standards: EN 61800-3/2004
EN 55011 (2002) Disturbance voltages / Disturbance field strength
First environment Second Environment
– class B / class C2 – class A / class C3
Disturbance voltages OK OK
Disturbance field strength * 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
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