FC-301P37KT4131B6466 Danfoss
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The Danfoss FC-301P37KT4131B6466 is part of the VLT FC 301 Automation Drives series and offers a power rating of 37 kW with a drive efficiency of 0.98. It operates on three phase power with a mains voltage range from 380 to 480 VAC and delivers up to 50 HP. The drive is equipped with 4 digital inputs, 2 digital outputs, and supports shielded motor cable lengths up to 50 meters.
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Product Description:
The FC-301P37KT4131B6466 is a variable frequency drive manufactured by Danfoss for the VLT FC 301 Automation Drives series. It delivers closed-loop speed control for three-phase induction motors, allowing machinery builders to adjust acceleration, deceleration, and steady-state speed without mechanical throttling. The drive can regulate motor operation in production lines and other automated systems that require controlled speed and torque. Adjustable operating parameters allow its output to match changing process demands while reducing the need for mechanical speed-control components.
The inverter is rated for a continuous output of 37 kW, equivalent to 50 HP, and is designed for three-phase power supplies in the 380–480 VAC range. When connected to a compatible mains supply, it can deliver 73 A under heavy-overload conditions and up to 90 A during normal-overload operation, permitting brief torque surges during starts or process disturbances. Its efficiency is rated at 0.98, so most of the input energy reaches the motor instead of being dissipated as heat inside the panel. A Safe Torque Off channel draws 50 mA RMS at 24 V for connection to functional safety interlocks. Thermal losses are managed through internal cooling paths. Motor leads may extend up to 50 m when shielded or 75 m when unshielded, providing flexibility for equipment distributed across a production area.
For control integration, the drive offers 12-bit analog feedback, 4 digital inputs, and two digital outputs. The analog channel supplies a 0–10 V signal with a 15 mA limit, while a separate 24 V reference can deliver 200 mA to external sensors. Input lines tolerate up to 28 V DC, and each digital output can switch 40 mA for auxiliary relays or other compatible devices. Total semiconductor power dissipation reaches 697 W at the maximum electrical load, which should be considered when determining enclosure airflow. The available control connections support feedback signals, external commands, and status outputs without requiring separate interface hardware. Proper ventilation around the drive helps remove internally generated heat during sustained high-load operation.
