General Electric 6KBU300-50 Drive Industrial Drives Low Voltage DC Power Input

General Electric 6KBU300-50 Drive Industrial Drives Low Voltage DC Power Input

Core Advantages
• Wide-voltage design: A single unit can cover 230 V – 460 V three-phase AC input, eliminating the need for an additional transformer and enabling plug-and-play deployment in factories worldwide.
• High power density: 50 A continuous current coupled with precise thermal management algorithms results in a more compact design within the same power range, significantly improving control cabinet space utilization.
• Intelligent air cooling: A built-in temperature-controlled, variable-speed fan automatically increases speed only when braking power increases, resulting in quiet, energy-efficient operation at low loads and extending fan life.
• Multiple protections: Integrated protection against IGBT overheating, braking resistor short circuit, overvoltage, undervoltage, and overload. Fault information is transmitted to the host system in real time via dry contacts or RS-485, ensuring immediate status monitoring for maintenance personnel.
• Convenient paralleling: Multiple 6KBU300-50 units can be connected in parallel via busbars, easily expanding to higher power levels and meeting braking requirements from 15 kW to over 200 kW.

Typical Application Scenarios
– Port gantry cranes and container quay cranes: Continuous energy regeneration during heavy-load lowering ensures stable busbar voltage.
– High-speed corrugated paper production lines: Frequent starts, stops, and speed changes require rapid braking unit response to avoid tension fluctuations.
– Lithium battery winding equipment: Precision deceleration prevents pole piece stretching and improves yield.
– Centrifugal dehydrators: High-inertia rotors enable emergency stops, reducing downtime and increasing batch production capacity.

Installation and Maintenance
The 6KBU300-50's dual mounting options, including side DIN rails and rear screws, make it easy to integrate in new or retrofit projects. Front terminals offer tool-free quick-connect and disconnect functionality, reducing downtime for maintenance. The included operating manual provides typical wiring diagrams, resistor selection tables, and troubleshooting procedures, allowing users to complete commissioning in less than 30 minutes, even without a GE engineer present. Daily maintenance requires only a semi-annual visual inspection of the fan and heat sink to check for dust accumulation and ensure airflow remains unobstructed.