FC-301P15KT4131U7849 Danfoss
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The Danfoss FC-301P15KT4131U7849 is part of the VLT FC 301 Automation Drives series. This drive supports 20 HP or 15 kW three phase power and operates at a mains voltage between 380 and 480 VAC. It features an overload class of 160% for 1 minute out of 10 minutes and has a short circuit rating of 100000 A RMS.
Internal Product Review
The FC-301P15KT4131U7849 is a Danfoss VLT FC 301 automation drive rated at 15 kW and 20 HP. Support for 380 - 480 VAC input and 160% overload for 1 min/10 min gives the drive very capable performance across variable-load duties. A 100000 A RMS short-circuit rating and Overvoltage Category III make the package especially appealing for demanding industrial installations.
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Product Description:
The FC-301P15KT4131U7849 belongs to the Danfoss VLT FC 301 Automation Drives series and is identified inside the VLT AutomationDrive FC product group. It is a variable-frequency converter that operates on three-phase power to regulate induction-motor speed in material-handling and HVAC systems. By matching output frequency to load demand, the drive helps reduce energy use while maintaining the torque and process accuracy expected in general industrial automation.
The converter supplies up to 20 HP or 15 KW of mechanical power when its input is within the 380 – 480 VAC mains range. Internally it monitors current so it can support an overload of 160% for 1 min/10 min without tripping, and it will clear a fault if the mains delivers more than 100000 A RMS because that level exceeds its short-circuit rating. Operation is based on three equal phases, with allowable phase imbalance limited to 3.0 % for reliable motor symmetry. The overvoltage category is III, making the unit suitable for fixed installation inside industrial distribution panels. The electronics allow only one power-up per minute to preserve capacitor life, yet the control logic permits unlimited output switching so that the motor can be started and stopped as often as the application requires. Series identifier 301 and the VLT naming convention simplify spare-part selection and parameter file transfer among similar drives.
Protective functions rely on several DC-link limits: braking energy is directed to the link at 778 V DC; a high-voltage warning is issued at 810 V DC, and an alarm shuts the drive down at 820 V DC. Cable reflections are assessed at 36 m, where dU/dt is 2.444 kV/µs, peak voltage reaches 1.210 kV, and the voltage rise time is only 0.396 µs. The drive can feed motors through shielded cable up to 50 m or unshielded cable up to 75 m without additional output filters, while maintaining a phase imbalance not exceeding the 3.0 % design limit.
