VLT 6172 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
The Danfoss VLT 6172 is part of the VLT 6000 HVAC Drives series and features a shaft output of 132 kW with an efficiency of 0.98. This drive has a maximum output power of 191 kVA at 550 V and supports an input current of 198 A at the same voltage. It provides breakaway torque of 160 percent for 0.5 seconds and measures 1208 mm in height and 420 mm in width in its IP54 enclosure.
Internal Product Review
The VLT 6172 is a Danfoss HVAC drive that stands out for high-demand installations, with 132 kW shaft output and 0.98 efficiency. Strong motor control comes from 110% starting torque for 1 minute and 160% breakaway torque for 0.5 s, supporting confident starts under varying HVAC loads. A 201 A output current rating gives this unit impressive capacity for larger HVAC systems.
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Product Description:
The VLT 6172 is an AC variable-frequency drive produced by Danfoss for the VLT 6000 HVAC Drives series. As an HVAC-focused inverter, it regulates centrifugal fans, pumps, and compressors by converting fixed three-phase mains power into a modulated output that matches real-time airflow or water flow demand. Using this drive in an automation loop allows building controllers to adjust motor speed instead of relying on mechanical throttling, which lowers energy use and mechanical wear.
The motor-starting profile includes a breakaway torque of 160% for 0.5 s to free stationary loads, followed by a starting torque of 110% for 1 minute to reach operating speed. Once running, a true power factor of 0.90 keeps reactive draw low, while an efficiency of 0.98 minimizes conversion losses. The input section draws 198 A at 550 V, and the inverter can deliver an output current of 201 A with a continuous shaft power of 132 kW. Electrical output is rated at 191 kVA, and the unit handles transient overloads up to 221 A for 60 seconds. Internal switching components and magnetics dissipate 3430 W at 525 to 600 V, so most of the incoming energy reaches the motor terminals. The IP54 enclosure measures 1208 mm high and 420 mm wide, allowing wall or floor mounting in mechanical rooms.
Thermal management relies on an aluminum heat sink and protective circuitry that resets at 60 °C and trips at 80 °C to protect the power modules. The upstream circuit requires a maximum fuse rating of 350 A, and the drive withstands fault currents up to 100,000 A without case rupture. Breaker coordination based on these limits supports selective fault clearing in distribution panels. Power loss remains constant even at the stated overload current, allowing ventilation capacity to be calculated for the expected heat load.
