High Power VLT® Series VaHigh Power VLT® Series Variable Frequency Drives

Description

Danfoss Drives VLT® Series Variable Frequency Drives are now available with power through 1350 HP in 460 and 690 VAC.  F1 frame models deliver power up to 1050 HP in an 86.8 in. x 55.1 in. x 23.9 in. footprint, while F2 frame models deliver up to 1350 HP in an 86.8 in. x 71.0 in. x 23.9 in. footprint.  

 

These high power variable frequency drives not only deliver high power performance, they facilitate ease-of-use by sharing a common platform with smaller Danfoss drives.  Proven power electronics promise reliable operation, and components are accessible from the front of the unit for quick, easy serviceability and maintenance.  A Rittal TS8 enclosure system in IP21 (NEMA1) or IP54 (NEMA12) enables easy system expansion, while a Class A1 RFI filter (optional class A2) reduces EMI/RFI without the need for external filters.  Additional features include DC-link reactors to reduce harmonics without external AC line reactors, DC-link fuses that provide independent protection of inverters, and coated PCBs provide extra protection in potentially corrosive environments.

 

High power F frame size VLT Series variable frequency drives also feature a unique cooling design that utilizes a ducted back channel to pass cooling air over heat sinks, with minimal air passing through the electronics area.  This allows 85% of the heat losses to be exhausted directly outside the enclosure, which improves reliability and prolongs drive life by dramatically reducing temperature rise and contamination of electronic components.

 

A number of power, monitoring, enclosure, filtering, control and convenience options and accessories are available to enhance performance and operation. 
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