Installation, connection and feeder configuration
4.1 Installing the soft starter
3RW44 soft starters
30 Manual, 03/2017, NEB535219502000/RS-AB/008
Installation requirements
Degree of protection IP00
3RW44 soft starters conform to IP00 degree of protection.
The devices must be installed in control cabinets with IP54 degree of protection (pollution
degree 2), taking account of the ambient conditions.
Make sure no liquids, dust or conductive objects can get inside the soft starter. The soft
starter produces waste heat (power loss) while it is operating (refer to chapter General
technical data (Page 243)).
Overheating of the switching device
Provide adequate cooling at the place of installation to prevent the switching device from
overheating.
Note
Coated circuit boards
All 3RW44 soft starters with a production date G/150206 onwards are
equipped as standard
with coated printed circuit boards to improve protection of the device against tough ambient
conditions such as dust, moisture or other harmful influences.
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