A compact IP 55/IP 66 enclosure with type designation 'A4' is now available for the Danfoss frequency converter families VLT AutomationDrive, HVAC Drive and Aqua Drive with power ratings up to 4kW. Compared with the existing A5 enclosures, the dimensions have been reduced by 33%.
This size reduction has been achieved through the use of modern components with optimised efficiency, and new cooling technology. All of the elements of a typical VLT drive configuration, including RFI filter compliant with EN 55011 Class A1/B, a mains interference suppression choke, and the brake module, are integrated into the unit to avoid additional installation and component costs.