Product Description:

The FC-301P11KT2134L2183 is an AC variable frequency drive produced by Danfoss within the VLT FC 301 Automation Drives series. As a member of the VLT AutomationDrive FC product group, it is intended for panel-mounted installation where the speed and torque of three-phase induction motors must be controlled precisely through pulse-width-modulated output. By adjusting the stator frequency, the unit supports energy-efficient operation of pumps, fans, and general-purpose machinery commonly found in automated production cells and building services.

The inverter accepts an input range of 200 – 240 VAC, allowing deployment on low-voltage networks that carry three-phase power. At rated current, it converts that supply with an efficiency of 0.96, so only a small fraction of energy is lost as heat and cabinet cooling demands stay moderate. Mechanical output is sized for motors up to 15 HP, which covers most medium-frame IEC machines. When the plant operates on a 208 V bus, the converter draws 16.6 kVA of apparent power, a figure used for breaker and cable sizing; the demand rises to 18.4 kVA if the feeder voltage is 230 V.

Protective functions are centered on the DC link. A regenerative braking resistor can be connected directly to the 390 V DC active link, and the built-in algorithm limits each brake event to a 120 s cycle while permitting continuous duty at full torque or 40% duty during over-torque conditions. The control board raises a high-voltage warning at 405 V DC and trips an overvoltage alarm at 410 V DC to safeguard components when the mains imbalance exceeds the allowed 3.0 %. The drive is rated at 11 kW, and only one power-up per minute is permitted to reduce inrush stress. For process interfacing, it provides a 10 V DC, 15 mA reference output plus two form-C relays rated 240 V AC at 2 A and 60 V DC at 1 A.