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Regenerative braking unit SRBU-100H 400V
€1,390.00*
Details
+49 421 277 9999
Product information "Regenerative braking unit SRBU-100H 400V"
SRBU-100H – Regenerative unit for energy-efficient drive systems
The SRBU-100H is a powerful regenerative unit for efficiently feeding braking energy back into the supply grid. Instead of converting excess energy into heat via braking resistors, the SRBU-100H feeds the energy generated during braking back into the power grid with minimal losses. This reduces energy costs, lowers heat generation in the control cabinet, and increases the service life of the entire drive technology.
The regenerative unit is ideally suited for applications with frequent braking cycles, high moments of inertia, or large moving masses – for example in conveyor technology, machine tools, hoists, winding machines, test benches, or production systems.
Highlights
- Energy feedback into the supply grid instead of energy dissipation via braking resistors
- Mains voltage 380 V (-15 %) to 440 V (+10 %)
- Standard DC-link voltage 515 VDC
- Automatic or manual start of recuperation
- Continuous operation at full rated current
- Overload capability up to 150 % of rated current for 60 seconds
- Integrated output reactor on units up to 45 kW
- Input reactor included in the scope of delivery on units up to 45 kW
- Input and output reactor included in the scope of delivery on units from 55 kW
- High power factor (> 0.9)
- Compact design for the control cabinet
- High operational reliability thanks to extensive protective functions
Technical data
Electrical data:
- Mains voltage range: 380 V (-15 %) to 440 V (+10 %)
- AC voltage: 380 V AC, 50/60 Hz
- Standard DC-link voltage: 515 VDC
- Current control with 120° control method
- Power factor: > 0.9
- Voltage unbalance: < 2 %
- Permissible frequency deviation: < 3 Hz
Performance data:
- Continuous operation with 100 % of rated current
- Braking torque: 100 % in continuous operation
- Overload capability: 150 % of rated current for 60 seconds
- Automatic or manual recuperation
- Adjustable switching thresholds in automatic mode:
- Recuperation start: 0–240 V above standard DC-link voltage
- Recuperation end: 0–120 V above standard DC-link voltage
Operation and interfaces:
- Operation via keypad or external control terminals
- LED operating panel with status display
- Relay output for fault/status signaling
- Analog output 0–10 V
Protective functions:
- Overcurrent protection (330 % of rated current on the DC side)
- Overvoltage protection: 790 V DC
- Overtemperature protection
- Phase loss detection on the mains side
- Mains frequency monitoring
- Protection class IP20
Layout and dimensions (in mm):
Model (in kW) |
W2 |
W3 |
H2 |
W1 |
H1 |
H3 |
D |
Hole diameter |
Recommended mounting screw |
Net weight [kg] |
Installation dimensions |
Overall dimensions |
|||||||||
| Voltage class: 400 V | ||||||||||
| 22-45 | 130 | 140 | 563,5 | 220 | 577 | 622,6 | 236 | Ø7 | M6×16 | 26 |
| 55-132 | 130 | 140 | 563,5 | 320 | 577 | 622,6 | 261 | Ø7 | M6×16 | 27 |
| 160-250 | 250 | 250 | 732 | 440 | 750 | 782,9 | 326,2 | Ø9 | M8×16 | 54 |
| Voltage class: 690 V | ||||||||||
| 55-160 | 130 | 140 | 563,5 | 320 | 577 | 622,6 | 261 | Ø7 | M6×16 | 31 |
| 200-400 | 250 | 250 | 732 | 440 | 750 | 782,9 | 326,2 | Ø9 | M8×16 | 54 |
|
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Scope of delivery
Models up to 45 kW:
- Integrated output reactor
- Input reactor included in the scope of delivery
Models from 55 kW:
- Input reactor included in the scope of delivery
- Output reactor included in the scope of delivery
Notes on design and installation
- The supplied input reactor is part of the system and must be used together with the SRBU-100H.
- When using a common DC link, a frequency inverter with the same or comparable rated power should be used.
- The SRBU output cable must be connected on the output side of the input reactor.
- A mains filter is available as an option and should be selected according to the total power of the connected inverters.
- Fusing must be designed according to 1.5 to 2 times the DC-link current.
- The voltage class of the SRBU must match that of the frequency inverter used.
- The rated power of the regenerative unit must be at least equal to the maximum regenerative power occurring during braking.
Typical areas of application
- Conveyor and intralogistics systems
- Machine tools
- Hoisting and crane systems
- Test benches
- Winding machines
- Centrifuges
- Elevator and stage technology
- Production and automation systems
- Applications with frequent braking operations and high recovered energy
With the SRBU-100H, you receive a reliable and cost-effective solution for feeding braking energy back into the grid. The unit increases the energy efficiency of your drive systems, reduces heat generation in the control cabinet, and contributes to a sustainable reduction in operating costs.