23.DR.B18-1741 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 23.DR.B18-1741 is part of the DR Motor Input Chokes series and is designed for three-phase systems with a voltage class of 400 V and a rated current of 180 A. The choke has an impedance of 4 percent, an inductance of 0.16 mH, and a conductor cross-section of 95 mm². It weighs 24 kg and has overall dimensions of 267 by 207 by 310 mm.
Internal Product Review
The 23.DR.B18-1741 is a KEB DR motor input choke designed for 3-phase 400 V drive systems. A 180 A rated current and 4% choke impedance give this unit excellent line conditioning and dependable support for connected power electronics. The 0.16 mH inductance makes this a well-balanced choice for demanding industrial installations.
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Product Description:
The 23.DR.B18-1741 input choke is manufactured by KEB and belongs to the DR Motor Input Chokes series. In drive cabinets, it is wired ahead of frequency converters to add series inductance, smoothing the supply waveform and limiting high-frequency harmonics that otherwise elevate switching losses. By attenuating voltage spikes, the component safeguards inverter front ends and extends the service life of connected motors and power electronics.
The choke introduces 4% impedance into a 400 V network, reducing prospective short-circuit currents without causing a significant line voltage drop. Its magnetic design provides an inductance of 0.16 mH, so stored energy filters fast power supply disturbances and moderates the rate of current change reaching the DC link. Thermal sizing supports a continuous load of 180 A, and laminated cores keep the flux density below saturation at that current. The choke operates with three conductors, matching the topology of standard three-phase power systems used by KEB drives. The voltage drop across the device remains within the expected limits for a drive input choke.
Under full load, the reactor dissipates 145 W of copper and core heat, so the panel must provide sufficient airflow or heat dissipation to maintain a safe winding temperature. The punched steel base aligns with mounting centers of 249 × 96 mm, allowing direct attachment to common backplates. Its overall dimensions are 267 × 207 × 310 mm, and the assembly has a mass of 24 kg, which must be considered when selecting the enclosure structure and mounting hardware. The winding window accommodates cable lugs for conductors measuring up to 95 mm², supporting low-resistance connections at the rated current. Designed for power grids operating at 50 Hz, the choke maintains its inductive reactance across typical industrial frequency tolerances and helps keep voltage distortion within the drive manufacturer’s recommendations.
