175H1695
by Danfoss
The 175H1695 is a variable frequency drive produced by Danfoss and placed within the VLT 3000 Variable Speed Drives series. As a motor controller, it adjusts AC induction motor speed to match process demands, improving energy use and maintaining torque across a wide load range in industrial automation.
The drive accepts a three-phase input of 3 × 380/400/415 V (±10%), synchronized to line networks operating at 50/60 Hz. Within that envelope it draws up to 2.0 kVA of apparent power and delivers a shaft‐related output of 1.1 kW while providing a continuous output current of 2.8 A. Apparent power influences upstream conductor sizing, whereas the rated kilowatt figure defines the maximum mechanical work transferable to the motor. The stated current rating is the basis for thermal sizing of contactors and cable cross-sections. Its design reserves screened motor-lead runs up to 150 m and unscreened runs up to 300 m so cabinet placement can be distant from the driven load without signal distortion.
During transient demands the unit can supply 3.1 A for 60 s, and branch protection is coordinated with a 16 A pre-fuse to clear faults quickly without nuisance trips. Internal dissipation reaches 60 W at maximum electrical loading; this heat loss must be extracted to keep enclosure temperature inside the specified ceiling of 40 °C when running at full load. Below that ambient limit, the drive operates without derating. Power loss figures assist HVAC sizing for sealed cabinets, and the overload window allows brief torque surges during motor start-up or process upsets without exceeding thermal limits of copper windings.
