175H1236 Danfoss
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The Danfoss 175H1236 is part of the VLT 3000 Variable Speed Drives series and supports a maximum output frequency of 500 Hz. It features a maximum input current of 30.7 A in continuous mode and 41.5 A in variable mode, with an output current of 44 A in variable mode. The drive handles max apparent power of 23.0 kVA in continuous mode and 31.6 kVA in variable mode, and supports a max wire size of 6 AWG.
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Product Description:
The 175H1236 drive is an AC variable-frequency unit manufactured by Danfoss within the VLT 3000 Variable Speed Drives series. It converts fixed mains power to a controlled three-phase output so that induction or permanent-magnet motors can be regulated in industrial automation, ventilation, and pumping systems. By adjusting output frequency and voltage, the device allows process planners to match motor speed to load demand, reduce energy use, and improve mechanical lifespan.
The control terminal accepts a cycle-by-cycle input current up to 30.7 A in constant-torque mode and up to 41.5 A in variable-torque mode; upstream circuit breakers must accommodate those peaks. When driven at its maximum carrier setting the inverter produces up to 500 Hz, allowing high-speed spindles or servo-duty motors to run above base speed. In constant-torque service the output apparent power reaches 23.0 kVA, while variable-torque applications can draw a continuous 44 A without derating. The drive may be switched on or off up to five times per minute, and its wire lugs accept conductors as large as 6 AWG to minimize voltage drop at rated load.
Ramp handling and protective limits complete the performance profile. The programmable acceleration or deceleration interval can be extended to 3600 s, supporting slow starts for large inertia loads or gradual stops that prevent hydraulic transients. For short bursts the inverter withstands an overload of 51.2 A for 60 s, giving machines enough torque reserve to break static friction or handle momentary shocks. In variable-torque operation the apparent power ceiling rises to 31.6 kVA, so centrifugal pumps or fans can be driven at full volume when demanded. Coordination with upstream protection is simplified because the recommended pre-fuse is rated at 63 A.
Frequently Asked Questions about 175H1236:
Q: What is the maximum output frequency of the Danfoss 175H1236 VLT 3000 drive?
A: The maximum output frequency delivered by the 175H1236 drive is 500 Hz.
Q: What is the max input current for the 175H1236 when operating in vt mode?
A: The highest input current in voltage trip mode is rated at 41.5 A.
Q: What is the largest wire size compatible with the Danfoss 175H1236 drive?
A: The Danfoss 175H1236 supports a maximum wire size of 6 AWG in its connections.
Q: What is the output apparent power of the 175H1236 when using current trip mode?
A: In current trip mode, the output apparent power can reach up to 23.0 kVA.
Q: What is the maximum pre-fuse amp rating supported by the 175H1236 VLT 3000 drive?
A: For circuit protection, the 175H1236 allows a maximum pre-fuse rating of 63 A.
