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175H1065 Danfoss

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The Danfoss 175H1065 is a variable speed drive in the VLT 3000 Variable Speed Drives series, designed for a nominal AC line voltage of 230 V three-phase. It offers a maximum output frequency of 500 Hz, supports a motor cable length up to 1000 feet unshielded, and delivers an output current of 5.6 A. This drive operates with up to 95 percent relative humidity.

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Product Description:

The 175H1065 is a variable frequency drive from Danfoss and is part of the VLT 3000 Variable Speed Drives series. The unit converts fixed mains power into a regulated three-phase output suitable for AC induction motors, allowing speed and torque adjustment in conveyors, pumps, and similar automated equipment. Its compact dimensions and panel-mounted design make the drive easy to integrate into control cabinets used for process lines and HVAC systems. By modulating voltage and frequency simultaneously, it maintains motor efficiency across the operating speed range.

Electrical ratings include a nominal input of 230 V three-phase, so the drive connects directly to low-voltage industrial mains without an autotransformer. Full-load efficiency reaches 0.96, limiting waste heat and reducing enclosure ventilation demand. During constant-torque service, the input section can draw up to 13.3 A; upstream protection therefore relies on a line fuse rated at 25 A. The inverter section delivers frequencies up to 500 Hz, supporting high-speed spindle or blower motors beyond the typical 60 Hz utility limit. Relative humidity may be as high as 95% without condensation. The unit operates at ambient temperatures up to 40 °C under rated load and withstands vibration levels of 0.7 g, supporting use on machinery frames subject to continuous motion.

For acceleration and deceleration profiles, the drive allows ramp times as long as 3600 s, which is useful when delicate products or large inertial loads require gradual speed changes. The minimum operating temperature is -10 °C, so cold-room startups do not require auxiliary heaters. Continuous motor output is supported at 5.6 A, with a short-term overload capacity of 9.0 A for 60 seconds when additional torque is required. At maximum load, the converter dissipates 130 W, which must be considered when determining cabinet airflow. Installation can use up to 1,000 feet of unshielded motor cable. The permitted storage temperature ranges from -25 °C to 65 °C without performance degradation.

Ac Line Voltage (nominal)
230 V (3-Phase)
Efficiency At 100% Load
0.96
Max Ambient Temp (full Load)
40 C
Max Input Current (ct)
13.3 A
Max Motor Cable Length
1000 ft (unshielded)
Max Output Frequency
500 Hz
Max Pre-fuse
25 A
Max Ramp Time
3600 s
Min Ambient Temp
-10 C
Output Current (ct)
5.6 A
Overload Output Current (60 S)
9.0 A
Power Loss At Max Load (ct)
130 W
Relative Humidity Max
95 %
Storage Temperature Max
65 C
Storage Temperature Min
-25 C
Vibration Test
0.7 g

Frequently Asked Questions about 175H1065:

Q: What is the nominal AC line voltage required for the 175H1065 variable speed drive?

A: The 175H1065 drive supports a nominal AC line voltage of 230 V with 3-phase input.

Q: What is the maximum output frequency available on the 175H1065 drive?

A: This model provides a maximum output frequency of 500 Hz, suitable for high-speed motor applications.

Q: What efficiency can be expected from the 175H1065 at 100% load?

A: The drive's efficiency reaches 0.96 at full load, promoting energy savings during operation.

Q: What is the highest ambient temperature at which the 175H1065 can operate at full load?

A: The maximum ambient temperature at full load for this model is 40°C.

Q: What is the maximum allowable unshielded motor cable length with the 175H1065 drive?

A: It offers a maximum unshielded motor cable length of 1000 feet.


Internal Product Review

  • ‘‘The 175H1065 is a VLT 3000 Variable Speed Drive from Danfoss, designed for 230 V three-phase operation with a max output frequency of 500 Hz. It maintains high efficiency at 0.96 under full load and supports motor cable lengths up to 1000 ft unshielded. This drive stands out for its reliable performance and flexible installation.’’

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