
Delta Energy Feedback Unit for High-Efficiency Regeneration and Braking
PRODUCT PARAMETERS
- Compact design with built-in reactor, simplifying wiring
- Replaces traditional brake units and achieves >95% energy feedback efficiency
- Supports parallel operation and multi-brand inverter/servo compatibility
- MODBUS and optional high-speed network communication for monitoring and control
Description
PRODUCT FEATURES
The Delta Energy Feedback Unit is a compact solution with simplified wiring and built-in reactor, designed to replace traditional brake resistors and units. It achieves over 95% energy feedback efficiency to the grid, reducing heat generation and saving electricity.
Supporting parallel operation across multiple units, the system can extend power capacity for larger applications. The unit is highly compatible with various brands of inverters and servo drives, enhancing motor braking performance—up to 150% compared to 125% of conventional brake units.
Built-in MODBUS RS-485 standard communication allows monitoring of energy savings and cost. Optional high-speed network communication cards support MODBUS TCP, CANopen (Ds301), PROFIBUS, DeviceNet, and EtherNet/IP.
This energy feedback solution is ideal for industrial automation, providing efficient braking, energy recovery, and improved system performance.
APPLICATION FIELDS
High Inertia Loads: Centrifuges, industrial washing machines, crushers, gantry-type machine tools, etc.
Four-Quadrant Loads: Elevators, oilfield pumping units, lifting machinery, etc.
Requires Rapid Braking: Machine tools, bag-making machines, automated warehouses, punching machines, etc.
Long-Term Energy Feedback: Printing machines, escalators, etc.
TECHNICAL SPECIFICATIONS
230V Inverter Specifications
| Specification | Frame A (REG_A23A-21) | Frame A (REG_A23A-21) | Frame A (REG_A23A-21) | Frame B (REG_A23A-21) | Frame B (REG_A23A-21) | Frame B (REG_A23A-21) | Frame C (REG_A23A-21) |
|---|---|---|---|---|---|---|---|
| Rated Power (kW) | 7.5 | 11 | 15 | 18.5 | 22 | 30 | 37 |
| Input Current (A) | 20 | 32 | 38 | 49 | 60 | 80 | 100 |
| Rated Voltage/Freq | 3-phase AC 200-240V (-15%~+10%), 50/60Hz | Same as left | Same as left | Same as left | Same as left | Same as left | Same as left |
| Operating Voltage Range | 170~260V | Same as left | Same as left | Same as left | Same as left | Same as left | Same as left |
| DC Bus Feedback Voltage Range | – | – | – | 300~360V (adjustable) | Same as left | Same as left | Same as left |
| Net Weight (kg) | 7.5±0.5 | Same as left | 16.5±0.5 | Same as left | 25.5±0.5 | Same as left | 29.0±0.5 |
460V Inverter Specifications
| Specification | Frame A (REG_A43A-21) | Frame A (REG_A43A-21) | Frame B (REG_A43A-21) | Frame B (REG_A43A-21) | Frame C (REG_A43A-21) | Frame C (REG_A43A-21) | Frame C (REG_A43A-21) |
|---|---|---|---|---|---|---|---|
| Rated Power (kW) | 7.5 | 11 | 15 | 18.5 | 22 | 30 | 37/45/55 |
| Input Current (A) | 10.5 | 17 | 20 | 32 | 43 | 50 | 60/75 |
| Rated Voltage/Freq | 3-phase AC 380~480V (-15%~+10%), 50/60Hz | Same as left | Same as left | Same as left | Same as left | Same as left | Same as left |
| Operating Voltage Range | 323~528V | Same as left | Same as left | Same as left | Same as left | Same as left | Same as left |
| DC Bus Feedback Voltage Range | – | – | – | 580~720V (adjustable) | Same as left | Same as left | Same as left |
| Net Weight (kg) | 7.5±0.5 | Same as left | 17.0±0.5 | Same as left | 26.5±0.5 | 29.0±0.5 | 25.5±0.5 |
FAQs
As a trade-and-manufacturing integrated company, we offer a full range of Delta power supplies, including switching power supplies, industrial power modules, and DC regulated power supplies, suitable for industrial automation and various electronic equipment.
Yes. We provide customized solutions based on customer requirements, including voltage, power, and functional extensions, with professional technical support to ensure feasibility.
We ship via reliable logistics and courier services, offering full tracking to ensure the products reach customers safely and on time.
The process is simple: select the model → submit requirements → confirm the solution → arrange payment → delivery and technical guidance. We provide full support to ensure each step is completed smoothly.
We provide original manufacturer warranty, spare parts supply, operation guidance, maintenance, and troubleshooting services to ensure Delta power supplies operate stably and reliably.


