FC-301P30KT4134L2991 Danfoss
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The FC-301P30KT4134L2991 is an automation drive manufactured by Danfoss as part of the VLT FC 301 Automation Drives series. It delivers a power rating of 30 KW and 40 horsepower, designed for three phase main voltages between 380 and 480 VAC. The drive features an efficiency of 0.98, includes 1 analog output, 2 digital outputs, and 1 relay output, and supports a maximum output frequency of 590 Hz.
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Product Description:
The FC-301P30KT4134L2991 is an AC variable frequency drive produced by Danfoss within the VLT FC 301 Automation Drives series. As part of the VLT AutomationDrive FC product group, it converts fixed-frequency, three-phase mains power into a regulated output so motors can match process demand instead of running continuously at full speed. By adjusting voltage and frequency together, the drive supports conveyors, pumps, and other machinery that require precise closed-loop speed control in industrial automation. This regulated operation can reduce unnecessary motor speed during periods of lower process demand.
This drive delivers a continuous mechanical output of 30 kW, equivalent to 40 HP, when supplied with a three-phase input between 380 and 480 VAC. Conversion efficiency is maintained at 0.98 under nominal load, limiting heat rise and cabinet ventilation requirements. The inverter can synthesize output frequencies up to 590 Hz, while an internal 300 Hz flux ceiling protects the motor’s magnetic circuit. One analog output, two digital outputs, and one relay output report operating status to supervisory systems. Protective logic raises a high-voltage warning at 810 V DC and engages dynamic braking at 778 V DC to prevent excessive energy from accumulating on the DC bus. These protective thresholds allow the drive to respond before the bus reaches the alarm level.
Under 400 V line conditions, the inverter draws an apparent power of 42.3 kVA, allowing proper feeder sizing and thermal assessment of upstream switchgear. For intermittent heavy loads, it tolerates an overload of 150% for 1 minute in every 10-minute interval, preventing nuisance trips during temporary torque surges. An overvoltage alarm is latched at 820 V DC, isolating the unit until the bus voltage returns to a safe level. Motor leads can extend up to 50 m when shielded, while unshielded leads can extend up to 75 m before reflected-wave effects may compromise insulation integrity. The difference between the permitted cable lengths accounts for the electrical behavior of shielded and unshielded motor wiring.
