Product Description:

The FC-301P4K0T4134L2646 is a variable frequency drive manufactured by Danfoss and supplied under the VLT FC 301 Automation Drives series. Designed for cabinet mounting, the unit modulates the voltage and frequency applied to induction motors so plant controllers can match speed and torque to process demand. In automated lines, the drive replaces mechanical throttling, lowers energy consumption, and improves positioning repeatability.

It accepts an input supply of 380 to 480 VAC, and the terminals are wired for three-phase power, so it connects directly to standard industrial feeders. The inverter delivers a continuous output of 4.0 kW, giving it sufficient capacity for small pumps, fans, or conveyors. A starting torque of 160% for 60 seconds lets the motor overcome static friction without an external booster. Speed regulation extends to 590 Hz, while a separate flux limit of 300 Hz protects the magnetic circuit. The power stage can switch at frequencies up to 110 kHz, and torque responds within 1 ms with flux control or 10 ms with VVC+, ensuring rapid recovery from load changes. The control electronics provide a 10 V reference that can supply 15 mA, a 24 V sensor rail rated at 200 mA, and optically isolated inputs that tolerate 28 V DC. Safe torque off monitoring draws 50 mA RMS per channel.

The drive maintains its full current rating at ambient temperatures up to 45 °C, and derating is not required until the temperature rises beyond that point. Installation is permitted at altitudes up to 1000 m, allowing placement in most industrial facilities without cooling modifications related to elevation. Motor connections can use shielded cable up to 50 m long or unshielded cable up to 75 m long, allowing the drive to serve remotely located pumps and other equipment. These cable limits help control electrical noise and voltage stress between the inverter output and motor terminals.