23.P6.090-R40A KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 23.P6.090-R40A is part of the P6 Combivert Pitch Drives series and offers an output rated power of 42 kW at 400 V and 50 kW at 480 V. It features a rated output current of 120 A, a maximum current of 350 A at 56 Hz, and supports a maximum site altitude of 3000 meters. The unit operates at a rated input voltage of 400 V AC and includes an output current of 3 A at 24 V.
Internal Product Review
The 23.P6.090-R40A is a KEB P6 Combivert pitch drive engineered for 400 V AC input and 42 kW output. A rated output current of 120 A and overcurrent capacity of 420 A give the drive strong margin for demanding pitch control cycles. EMC Class C2 compliance and a 4 kHz switching frequency make the drive a well-balanced choice for stable, responsive operation.
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Product Description:
The 23.P6.090-R40A is a pitch-drive inverter manufactured by KEB for the P6 Combivert Pitch Drives series. It converts three-phase mains power into a variable AC output so controllers can regulate motor torque during wind-turbine blade adjustment, yaw control, or other positioning tasks. In industrial automation, it supplies regulated power where precise speed and position changes are required, coordinates with PLC systems, and manages high transient loads under demanding operating conditions.
It accepts a nominal input of 400 V AC and draws up to 75 A during rated operation, matching the low-voltage power systems commonly used in tower nacelles. At the output, the inverter can deliver 42 kW to a 400 V motor and up to 50 kW when supplied with 480 V, providing the mechanical power needed to rotate large hub assemblies. Continuous phase current is limited to 120 A, which sets the thermal requirements for conductors and busbars inside the cabinet. Semiconductor switching operates at a carrier frequency of 4 kHz, helping keep current ripple and acoustic noise within acceptable limits for geared pitch mechanisms. The integrated 24 V auxiliary supply provides up to 3 A for the control electronics.
For transient events such as emergency feathering, the drive tolerates an instantaneous phase-current surge of 420 A. Short bursts of up to 350 A are permitted when the motor frequency exceeds 6 Hz, while the limit decreases to 280 A when the shaft is locked at 0 Hz. Internal power losses reach 1160 W at rated load, so forced-air channels must keep the heat sink surface below 90 °C. Installation requirements include a maximum motor-cable length of 15 m, a mains fuse rating of 100 A, and operation at altitudes up to 3000 m, where reduced air density affects cooling performance. The C2 EMC class supports compliance with industrial emissions limits without additional filters.
