SPECIFICATIONS
| Model Name | RCU-4011 |
| Series | RCU Series Regenerative Converter Unit |
| Voltage Class | 380 – 480 V AC (3-Phase, 50/60 Hz) |
| Rated Power | 11 kW (15 HP) |
| Rated DC Input Current (Id) | 26 A (average) |
| Rated AC Output Current (In) | 20 A rms (100 s / 400 s cycle) |
| Continuous Output Current (Ic) | 10 A rms |
| Regenerative Torque | 150 % for 30 s / 100 % for 100 s / 80 % continuous |
| Duty Cycle | 25 % ED (100 s ON / 400 s cycle) |
| Control Method | PWM current control method |
| Protection Functions | Over-current, Over-voltage, Overload, Overheat, Phase Imbalance, Emergency Stop |
| Enclosure Rating | IP20 (Natural air cooling) |
| Mounting Style | Vertical Wall or Panel Mount (KE3 Frame) |
| Dimensions (W × H × D) | 195 × 425 × 210 mm (7.68 × 16.73 × 8.27 in) |
| Weight | Approx. 12 kg (26.5 lb) |
| Ambient Temperature Range | –10 °C to +40 °C (Operation) / –20 °C to +65 °C (Storage) |
| Humidity | < 90 % (non-condensing) |
Manuals and Specifications
| Instruction Manual | Hitachi RCU Series Regenerative Converter Unit Instruction Manual (HAL1057C) |
SERIES DESCRIPTION
The Hitachi RCU-4011 is part of the RCU Series Regenerative Converter Units, engineered to return braking energy to the power grid for 400 V-class inverter systems. It replaces traditional braking resistor systems, offering improved efficiency and reduced thermal losses for applications requiring frequent deceleration or regenerative operation.
Features
- 400 V class converter for up to 11 kW (15 HP) inverters
- Enables regenerative power feedback to the AC supply
- Compact KE3 frame with natural air cooling and IP20 enclosure
- Integrated protections against overload and thermal faults
- Energy-saving alternative to dynamic braking resistors
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