FC-301P15KT4131B3672 Danfoss
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The Danfoss FC-301P15KT4131B3672 is part of the VLT FC 301 Automation Drives series and is designed for three phase power with a mains voltage range of 380 to 480 VAC. This drive offers a power rating of 15 kW (20 HP) and features two analog inputs with 10-bit resolution and one analog output with 12-bit resolution. It achieves a displacement power factor greater than 0.98 and provides a brake active voltage of 778 V DC.
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Product Description:
The FC-301P15KT4131B3672 is an AC variable frequency drive produced by Danfoss within the VLT FC 301 Automation Drives series. Installed between the three-phase mains and an induction motor, the unit modulates output frequency and voltage so a PLC can regulate speed, torque, and process throughput. It is suitable for conveyors, pumps, and fans that require consistent motor control and low harmonic distortion in industrial automation. The drive can also adapt motor operation to changing process demands, helping connected equipment maintain stable performance across varying loads.
The drive has a continuous output rating of 15 kW, while the input section accepts a mains range of 380–480 VAC with three-phase power. For applications that use imperial units, the drive supports motors rated up to 20 HP. Two analog command channels provide 0.5% FS accuracy with 10-bit resolution, allowing speed references from sensors or external controllers to be reproduced with minimal deviation. One 12-bit analog output retransmits operating variables to panel meters or remote data loggers. Shielded motor leads can extend up to 50 m, while unshielded cable can extend up to 75 m, providing flexibility when positioning the drive cabinet in relation to the motor. These cable allowances support installations in which the motor and control enclosure cannot be placed close together.
DC-bus supervision protects the inverter from excessive line transients and regenerated energy. The brake chopper activates at 778 V DC to dissipate energy returned by a decelerating motor. A high-voltage warning is issued at 810 V DC, allowing the control system to reduce the load before a protective shutdown occurs. If the intermediate circuit reaches 820 V DC, the overvoltage alarm trips to prevent excessive electrical stress on internal components. The displacement power factor remains above 0.98, while the true power factor reaches at least 0.9 to support efficient use of the incoming supply. The connected analog output load must not exceed 500 Ω. Power-up events are limited to one per minute to reduce wear on the DC-bus capacitors and associated charging components.
