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FC-101P18KT4 Danfoss

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The Danfoss FC-101P18KT4 is part of the VLT FC 101 HVAC Basic Drives series and offers a power rating of 18.5 kW with a typical efficiency of 97.9 percent. It supports a three-phase voltage of 380 to 480 VAC and handles a continuous output current of 37.0 A at 380-440 V. The drive has a maximum weight of 9.5 kg, an IP20 enclosure rating, and measures 334 mm in height, 150 mm in width, and 255 mm in depth.

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Product Description:

The FC-101P18KT4 is an AC variable frequency drive produced by Danfoss for the VLT FC 101 HVAC Basic Drives series. This chassis-level device integrates into building automation systems to regulate motor speed in ventilation, pumping, and compressor equipment, ensuring that process airflow or fluid flow follows real-time demand while lowering electrical consumption. It handles constant-torque and variable-torque loads in packaged rooftop units and chilled-water pumping applications.

Rated at 18.5 kW of output power, the inverter delivers up to 25 HP to the motor terminals while operating from a supply range of 380 to 480 VAC. With a 380 to 440 V supply, the continuous output current reaches 37.0 A, and the typical conversion efficiency is 97.9%. The drive dissipates 456 W of heat during full-load operation, and its maximum input current is 35.2 A. An internal A1/C2 radio-frequency interference filter limits conducted emissions to levels suitable for HVAC applications. The unit does not have a brake chopper, so external dynamic braking hardware is required when an application needs rapid deceleration. A coated printed circuit board protects the electronics against airborne moisture, and the unit is supplied without a local control panel, leaving parameter access to remote fieldbus or PC tools.

The drive uses frame size H5 and measures 150 mm wide, 334 mm high, and 255 mm deep. Its IP20 enclosure is intended for installation inside a control cabinet, and the unit has a maximum weight of 9.5 kg. Three-phase terminals accept cables up to 16 mm² (6 AWG), while the busbar design helps maintain phase balance. Power connections are positioned on the chassis base, leaving unobstructed airflow around the internal heat sinks.

Brake Chopper
Not Included
Continuous Output Current 380-440 V
37.0 A
Depth
255 mm
Efficiency (typical)
97.9%
Enclosure Rating
IP20 / Chassis
Frame Size
H5
Height
334 mm
Horse Power
25 HP
Local Control Panel
Not Installed
Mains Voltage
380 - 480 VAC
Maximum Cable Size
16 mm² (6 AWG)
Maximum Input Current 380-440 V
35.2 A
Maximum Weight
9.5 kg
Pcb Coating
Coated
Phase Rating
Three phase
Power Loss (typical)
456 W
Power Rating
18.5 KW
Product Group
VLT HVAC Drive
Rfi Filter Class
A1 / C2
Series
101
Width
150 mm

Frequently Asked Questions about FC-101P18KT4:

Q: What is the power output capacity of the Danfoss FC-101P18KT4 drive?

A: The FC-101P18KT4 operates with a power rating of 18.5 kW, allowing it to handle demanding HVAC applications.

Q: What type of phase supply does the FC-101P18KT4 require?

A: The FC-101P18KT4 is designed for three-phase power systems.

Q: What enclosure rating does the Danfoss FC-101P18KT4 feature?

A: This model has an enclosure rating of IP20, offering basic protection against solid objects.

Q: How efficient is the FC-101P18KT4 HVAC Basic Drive?

A: The typical efficiency of this drive is 97.9%, minimizing energy losses during operation.

Q: Does the FC-101P18KT4 come with a local control panel included?

A: A local control panel is not installed on the FC-101P18KT4.


Internal Product Review

  • ‘‘The FC-101P18KT4 is a Danfoss VLT HVAC drive built for three-phase 380 to 480 VAC operation. The 18.5 kW power rating and 97.9% typical efficiency support excellent energy performance in HVAC service.’’

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