175H1152 Danfoss
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The Danfoss 175H1152 is a variable speed drive from the VLT 3000 Variable Speed Drives series, offering a supply voltage of 3 x 380/400/415 V with a supply frequency of 50 or 60 Hz. It provides continuous output currents of 10.0 A in constant torque mode and 13.0 A in variable torque mode, with a maximum output frequency of 500 Hz and efficiency of 0.96 at full load.
Internal Product Review
The 175H1152 from the VLT 3000 Variable Speed Drives series by Danfoss delivers reliable performance with a continuous output current of 10.0 A and impressive efficiency at 0.96 under full load. With a maximum output frequency of 500 Hz and support for up to 300 meters of motor cable, this drive is adaptable to a wide range of demanding industrial motor control applications. Overall, the unit stands out for its high efficiency and flexible installation options.
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Product Description:
The 175H1152 is an AC variable frequency drive manufactured by Danfoss within the VLT 3000 Variable Speed Drives series. As a motor controller, it converts fixed mains power into a regulated output that allows automation systems to adjust induction motor speed for conveyors, pumps, or fans. By modulating voltage and frequency, the unit maintains torque while reducing the energy that would otherwise be lost through mechanical throttling.
This drive operates from a three-phase supply of 3 × 380/400/415 V and draws a continuous current of 10.0 A in constant-torque mode or 13.0 A in variable-torque mode. These current values help determine cabinet ventilation and cable sizing requirements. In the same operating modes, the output apparent power is 7.2 kVA and 9.3 kVA, respectively, helping users select compatible motors and upstream protective devices. The incoming network can operate at 50 Hz or 60 Hz, and the shaft can deliver 4.0 kW in constant-torque duty or 5.5 kW in variable-torque duty, matching typical HVAC and light-processing loads. A 25 A pre-fuse limit establishes the largest breaker or fuse that may be fitted without compromising the drive’s semiconductor protection.
Energy conversion reaches an efficiency of 0.96 at 100% load, keeping heat rejection modest for enclosed panels. The output frequency can be set as high as 500 Hz, supporting high-speed spindles and oversynchronous pump applications. Motor leads may extend up to 300 m without additional filters, simplifying long cable runs on gantries or to remote wells. The control logic permits no more than 2 switching events per minute, and observing this limit prevents thermal shock to power components during rapid start-stop cycles. Long motor cables should be routed with appropriate separation from sensitive control wiring to reduce electromagnetic interference. Adequate panel airflow also helps the drive sustain its rated output under continuous operation.
