Application Scenarios
In a metal processing plant’s coil winding production line, operators frequently faced a challenging problem: when the line executed emergency stops, the regenerative energy generated by the high-inertia winding drum motor caused the drive to trigger DC bus overvoltage faults repeatedly. Each fault required manual reset and production line restart, severely impacting productivity. The maintenance team attempted to adjust the drive‘s internal braking parameters, but results remained unsatisfactory due to limited internal braking capacity. After installing the 1305-KBA09 dynamic braking kit, the external braking resistor rapidly absorbed the energy regenerated during motor deceleration, keeping the DC bus voltage stable within safe limits and completely eliminating overvoltage trip faults. Production supervisors reported that the 1305-KBA09 reduced emergency stop times by approximately 40% while eliminating mechanical shock caused by frequent tripping, extending the service life of the transmission system.
Parameter
| Parameter | Value/Description |
|---|---|
| Product Model | 1305-KBA09 |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Category | Dynamic Braking Kit / Braking Unit |
| Compatible Drive Power | 5 HP (4 kW) |
| Compatible Drive Voltage | 380–480 V AC, 460V AC |
| Compatible Drive Series | 1305 Series B and later versions only |
| Braking Torque | 100% torque for 20 seconds (typical) |
| Maximum Duty Cycle | 20% |
| Braking Power | 3.4 kW |
| Power Dissipation | 360 W maximum continuous |
| Enclosure Rating | IP20 |
| Operating Temperature | 0°C to 50°C |
| Mounting Type | Panel Mount |
| Connection Type | Terminal Block |
| Dimensions (W×H×D) | 184.2 × 327.7 × 153.9 mm |
| Weight | Approximately 5.9 kg (13 lb) |
| Certifications | UL, cUL |
