FC-301P37KT4134L2992 Danfoss
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The Danfoss FC-301P37KT4134L2992 is part of the VLT FC 301 Automation Drives series and has a power rating of 37 kW, supporting three phase power at 380 to 480 VAC. This drive delivers 50 horsepower and features 1 analog output with 12-bit resolution as well as 2 digital outputs with a maximum current of 40 mA. It offers an overload capability of 150 percent for 1 minute and a maximum frequency output of 32 kHz.
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Product Description:
The FC-301P37KT4134L2992 is an AC variable frequency drive manufactured by Danfoss as part of the VLT FC 301 Automation Drives series. The unit converts fixed-frequency three-phase mains power into a pulse-width-modulated output that lets controllers regulate the speed and torque of induction motors used in pumps, conveyors, and general machinery. By modulating motor frequency and voltage, the drive improves energy efficiency and provides the closed-loop control needed for modern industrial automation.
The I/O capacity supports one analog output with 12-bit resolution for feedback of speed or process variables. Two programmable digital outputs can each source up to 40 mA, letting the drive signal its status to relays, lights, or PLC inputs. Internal PWM switching reaches 32 kHz, so acoustic noise and motor ripple are minimized at high carrier frequencies. A pulse reference channel accepts signals up to 28 V DC, enabling direct connection to incremental encoders or flow meters. Cold-start stress is limited to one power-up per minute, which protects capacitors and inrush circuits during frequent operating cycles. The supply frequency may vary by ±5% without derating. Under nominal load, the control board maintains a displacement power factor above 0.98.
The drive’s continuous mechanical output reaches 37 kW, corresponding to 50 HP when operated with 380 to 480 VAC three-phase power. For intermittent heavy loads, the inverter can deliver 150% of rated current for one minute within every ten-minute cycle, providing additional acceleration torque without requiring an oversized installation. The true power factor remains at or above 0.9 during operation. Production can continue while the supply voltage varies by ±10%. Overload supervision and thermal models help protect the drive and connected motor from excessive electrical or thermal stress. Automatic restart functions work with the analog and digital interfaces to integrate the FC 301 into process lines that require precise speed regulation and high availability.
