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New Products / Motors & Drives / Danfoss Drives

Compact D-frame Drives

March 12, 2014
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Danfoss D-frame VLT DrivesAvailable in a power range from 125-450 HP (90-315kW) and up to 68% smaller than previous generation D-Frame drives, new D-Frame VLT® Drives require significantly less panel or wall space than previous models which were already among the smallest in their class. This reduces installation costs and increases installation flexibility. These drives also leverage back channel cooling to remove 90% of the heat generated by the drive, reducing both up front and ongoing costs and making them an ideal panel building solution.

The new drives are available with IP20, IP21 (NEMA 1) or IP 54 (NEMA 12) enclosure protection ratings. For robust protection they also come standard with conformal coated printed circuit boards, which together with the optional heat sink access panel, help to extend drive lifetime and reliability. The new units can be factory-fitted with optional semiconductor fuses to further reduce installation costs. Additional factory-fitted basic input options such as mains disconnect, contactor and circuit breaker, eliminate the need to install these basic options externally.

New D-Frame drives also use Danfoss’ unique and innovative back-channel cooling concept to keep electronics safely within optimal operation temperatures. The big advantage of back-channel cooling is that system installation and operating costs can be dramatically reduced.

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