Danfoss VLT AutomationDrive FC 300 Design Manual page 19

Safety and Conformity
indicator of aggressive airborne gases is blackening of
copper rails and cable ends.
D and E enclosures have a stainless-steel back-channel
option to provide additional protection in corrosive
environments, such as salt air found near sea side
applications. Proper ventilation is still required for the
internal components of the frequency converter. Contact
Danfoss for additional information.
2.5.1 Humidity
The frequency converter has been designed to meet the
IEC/EN 60068-2-3 standard, EN 50178 § 9.4.2.2 at 50 °C.
2.5.2 Vibration
The frequency converter has been tested according to the
procedure based on the following standards:
•
IEC/EN 60068-2-6: Vibration (sinusoidal) - 1970
•
IEC/EN 60068-2-64: Vibration, broad-band random
The frequency converter complies with requirements that
exist for units mounted on the walls and floors of
production premises, as well as in panels bolted to walls or
floors.
®
VLT AutomationDrive FC 300 Design Guide 90-1200 kW
MG34S202 - Rev. 2013-08-19
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