175H7433 Danfoss
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The Danfoss 175H7433 is part of the VLT 3000 Variable Speed Drives series and features a constant torque motor rating of 15 HP, with a quadratic torque motor rating of 20 HP. This drive provides an apparent output power of 17.3 kVA in constant torque mode and offers an efficiency of 96% at full load. It also includes an integrated RFI filter and supports a maximum output frequency of 500 Hz.
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Product Description:
The 175H7433 is a variable frequency drive built by Danfoss for the VLT 3000 Variable Speed Drives series. It accepts three-phase mains and produces a synthesized output whose voltage and frequency are adjusted in real time, letting automation engineers trim motor speed, reduce energy demand, and match torque to process conditions. The device targets conveyors, pumps, and ventilation equipment scattered across factory and utility installations and consolidates control, protection, and diagnostics inside a single compact enclosure for simplified commissioning.
Under constant-torque duty the inverter delivers an apparent output of 17.3 kVA and can provide a continuous motor current of 24.0 A. Its full-load efficiency is 96%, which limits thermal stress on internal components. The rectifier section draws up to 21.8 A from the supply, data that guides breaker and cable sizing. Speed control ranges from zero to a maximum of 500 Hz, enabling oversynchronous operation where the connected machine permits. In this mode the drive supports a constant-torque motor rating of 15 HP, suitable for positive-displacement equipment that requires steady shaft power.
For quadratic-torque profiles typical of centrifugal pumps, the drive handles 23.0 kVA and a 20 HP motor without derating. Upstream protection is secured with a pre-fuse limit of 63 A. During short overloads it can source 38.4 A for sixty seconds, giving extra start-up torque. Power dissipation peaks at 425 W at maximum load, easing enclosure cooling design. Programmable acceleration and deceleration extend to 3600 s, allowing gentle speed transitions for mechanically sensitive loads. An integrated RFI filter suppresses conducted emissions to help installations meet EMC guidelines.
Frequently Asked Questions about 175H7433:
Q: What is the maximum output frequency supported by the 175H7433 VLT 3000 drive?
A: The maximum output frequency of the 175H7433 is 500 Hz, allowing for highly flexible motor speed control.
Q: What is the apparent output power for constant torque settings on the 175H7433?
A: This model delivers an apparent output power of 17.3 kVA in constant torque applications.
Q: What is the continuous output current (CT) for the Danfoss 175H7433?
A: The continuous output current for this drive in constant torque applications is 24 A.
Q: What efficiency can be expected from the 175H7433 drive at full load?
A: The efficiency of the 175H7433 at full load is 96%, which helps minimize energy losses during operation.
Q: Does the Danfoss 175H7433 variable speed drive include an RFI filter?
A: An integrated RFI filter comes standard with the 175H7433, providing built-in electromagnetic interference suppression.
