NORDAC ON / ON+ (SK 3xxP) – Manual with installation instructions
136 BU 0800 en-4521
8.1.3 EMC of device
EMC interference to the environment
This device produces high-frequency interference, which may make additional suppression measures
necessary in domestic environments ( 8.1 "Electromagnetic compatibility (EMC)").
The use of shielded motor cables is essential in order to maintain the specified radio interference
suppression level.
The device is exclusively intended for commercial use. It is therefore not subject to the requirements
of the standard EN 61000-3-2 for radiation of harmonics.
The limit value classes are only achieved if
• the wiring is EMC-compliant
• the length of shielded motor cable does not exceed the permissible limits
• The standard pulse frequency (P504) is used
The motor cable shield must be connected on both sides.
Device version
Max. motor cable length,
shielded
Conducted emissions 150 kHz
- 30 MHz
Class C2 Class C1
Standard configuration for
operation on TN/TT networks
(active integrated mains filter)
5 m -
The PE contacts of the connection cables (e.g mains and motor cable) are connected to each other in
the device. For fault-free operation we recommend a further connection between the PE of the device
and the PE of the system construction. Depending on the device version, one or two screw terminals
are available at the device.
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