FC-202P37KT6134L3925 Danfoss
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The Danfoss FC-202P37KT6134L3925 is part of the VLT FC 202 AQUA Drives series and has a power rating of 37 kW with a 50 horsepower output. This drive operates with three phase power, offers an efficiency of 0.98, and features digital output terminals supporting up to 32 kHz.
Internal Product Review
The FC-202P37KT6134L3925 is a Danfoss VLT AQUA drive rated for 37 kW and configured for three-phase power. Efficiency of 0.98 and digital output frequency up to 32 kHz support stable, responsive control in water and process-duty applications. The 50 HP capacity makes this unit an excellent choice for demanding drive systems.
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Product Description:
The FC-202P37KT6134L3925 is a variable-frequency drive manufactured by Danfoss for the VLT FC 202 AQUA Drives series. The unit serves centrifugal pumps, blowers, and aerators in water-handling systems by varying motor speed in response to flow or pressure commands. It accepts three-phase utility power and modulates the output frequency to regulate connected equipment. Process-specific functions support operation in municipal and industrial water installations.
The drive supplies up to 37 kW of continuous electrical power to the motor terminals, equivalent to 50 HP. It is intended for three-phase power grids, so no phase conversion is required in typical 400–480 V plants. A measured efficiency of 0.98 minimizes heat dissipation and reduces enclosure cooling demand. Upstream circuit protection is sized according to the maximum pre-fuse rating of 100 A, allowing selective clearing of short-circuit faults without nuisance trips. Drive algorithms continuously monitor torque demand, allowing the unit to sustain its full rating during long pumping cycles.
Control and monitoring signals are managed through dedicated terminals. The analog feedback channel on terminal 42 delivers process data with an accuracy of 0.8% FS, uses an 8-bit converter, and permits a load of 500 Ω. Digital inputs on terminals 18, 19, 27, 29, 32, and 33 withstand up to 28 V DC and present a resistance of 4 kΩ to the sourcing device, allowing connection to most PLC outputs. For status signaling or relay control, the digital output pair on terminals 27 and 29 can source up to 40 mA at frequencies reaching 32 kHz, making it suitable for high-speed flow totalizers. Frequency commands sent to the motor are generated with a 12-bit resolution, yielding 4,096 discrete steps across the speed range and supporting precise adjustment of impeller velocity in variable-flow applications.
