18.DR.B18-4941 by KEB

The KEB 18.DR.B18-4941 is a robust input choke from the DR Motor Input Chokes series, manufactured by KEB for demanding industrial automation. Designed to stabilize voltage for motor-driven systems, this unit supports an input voltage of 400 V AC across a frequency range of 45 to 65 Hz. Its conductor cross-section of 10 mm² and rated current of 60 A ensure smooth current flow and reliable motor protection. Primarily, the choke limits voltage ripple and distortion to enhance motor efficiency and operational stability in factory and assembly-line environments.

This input choke features an inductivity of 0.48 mH and a power loss rating of 100 W, striking an optimal balance between performance and thermal management. It is designed for three-phase applications and carries an insulation class of T45/F, guaranteeing safe operation under elevated temperatures. The compact housing measures 219 x 100 x 200 mm (B x H x T) with fixation dimensions of 201 x 84 mm, facilitating straightforward surface mounting. Seven M12 screws (7 x 12) secure the unit, while its weight of 10 kg underscores its solid construction.

Built for compatibility with three-phase AC power circuits, the 18.DR.B18-4941 integrates seamlessly into motor control panels and drive inverters. The surface-mounting frame enhances installation flexibility, and the high insulation class supports durability in harsh conditions. No additional certifications are required beyond its industry-standard design, making it ideal for renewable energy, HVAC, and manufacturing systems where continuous motor functionality is essential. By mitigating harmonic distortion and voltage fluctuations, this input choke improves energy utilization and extends motor lifetime, delivering tangible benefits across industrial automation applications.