High-Power programmable DC Supply Systems
Advanced applications require advanced power solutions. The SM15K series power supplies are engineered for high efficiency, stability, and reliability. By combining multiple SM15K units, you can achieve a modular and scalable power system with an output current of up to 27,000 A, featuring a bidirectional constant power curve.
Modular Power System
The SM15K series enables a fully modular high-power system, scalable up to 900 kW using Master/Slave interface cards and output bus bar assembly kits. This flexible solution allows systems to be quickly assembled or disassembled, adapting effortlessly to changing power requirements.
The master unit simplifies system configuration through front panel controls, a web interface, or Ethernet connectivity. Additional interface cards can be integrated at any time, expanding the system’s functionality and connectivity.
Key Benefits of Modular Power:
- Scalability – Expandable up to 900 kW by adding additional units.
- Rapid Deployment – Quick assembly and disassembly in minutes.
- Versatile Control Options – Configure via front panel, web interface, or Ethernet.
- Seamless Connectivity – Easily extend functionality with optional interface cards.
Bidirectional Power Flow
The SM15K series features true bidirectional power flow, absorbing 100% of power and operating symmetrically across both quadrants. Voltage and current are fully programmable from zero to maximum, enabling precise control over energy flow.
With Delta’s Power Regeneration Technology, the SM15K achieves up to 95% efficiency, returning full power to the grid—eliminating the need for costly water-cooling systems.
This results in:
- Lower operating costs
- Reduced carbon footprint
- Compact, energy-efficient test setups
These advantages make the SM15K high-power system an ideal solution for battery testing, renewable energy research (PV, hydrogen, fuel cells), and other high-power industrial applications.
Excellent Performance
Even as a system of multiple SM15K units delivering more power, the system maintains excellent dynamic load response, ensuring high stability and reliability in operation. Consult the data sheet of the SM15K series for more information. Equipped with advanced features such as Ethernet interface, built-in sequencer, PC control software, fine-tune settings, and sink mode, the SM15K series offers comprehensive functionality out of the box. Optional plug-and-play interfaces for master/slave operation, digital I/O, interfaces, or analog programming further enhance usability and customization options. See the data sheets of the SM15K series and Master/ Slave interface for more information.
Availability
Current availability:
In-stock — or approx. 4 week build time if model unavailable
Models
| Unit | Voltage | Current | VI-curve | |
|---|---|---|---|---|
| SM70-CP-450 units in parallel (up to 60, 900 kW) |
0 - 70 V
|
-27000 - 27000 A
|
|
Request a quote |
| SM210-CP-150 units in parallel (up to 60, 900 kW) |
0 - 210 V
|
-9000 - 9000 A
|
|
Request a quote |
| SM500-CP-90 units in parallel (up to 60, 900 kW) |
0 - 500 V
|
-5400 - 5400 A
|
|
Request a quote |
| SM500-CP-90 units in series (up to 6, 90 kW) |
0 - 1000 V
|
-90 - 90 A
|
|
Request a quote |
| SM1000-CP-45 units in parallel (up to 60, 900 kW) |
0 - 1000 V
|
-2700 - 2700 A
|
|
Request a quote |
| SM1500-CP-30 units in parallel (up to 60, 900 kW) |
0 - 1500 V
|
-1800 - 1800 A
|
|
Request a quote |
Features
- Bi-directional system with up to 900 kW symmetric source and sink
- Easy Master/Slave parallel operation up to 60 units (hardware setup-related)
- High efficiency of more than 95% at full load
- Output kits for parallel and series output configuration are offered
- Power Regeneration Technology: in sink mode, the PSU returns the energy back into the grid
- Flexible output provided by Constant Power characteristics
- Excellent dynamic response to load changes
- Including all-digital control to adapt regulation to match load type
- Designed for long life at full power
- Protected against overload and short circuit conditions
Functionalities
- Multiple SM15K units behave as one power supply
- Operation on a wide range of 3-phase AC input voltages
- Master-Slave operation up to 900 kW (system behavior)
- Interaction through display menus or web interface
- Interfacing is extendable by using plug-and-play cards
- EMC surpasses CE requirements: low emission and high immunity
- Low audible noise: temperature-controlled cooling fans
- Parallel output operation up to 60 units for all unit types
- Series output operation only for SM500-CP-90, up to 6 units
Specifications
- Specifications: See single SM15K unit
- Recovery time: 2x the values of a single unit
- Ripple and noise: values of a single unit
- Programming speed: 2x the values of a single unit
- Operating temperature: -20 to +50 ºC
Standards
- Emission: EN 61326-1 (class B equipment, for use in domestic establishment)
- Immunity: EN 61326-1 (equipment for use in industrial and domestic establishment)
- Safety: EN 60950-1 / EN 61010-1
- Protection class: IP20
Dimensions and weight
- Width: 19 inch
- Height: > 6 U
- Depth: 591 mm
- Weight: > 54 kg
Interfaces
Add-on interfaces to be added at any time
Analog module
Analog programming interface.
High speed and high accuracy.
Provides isolation.
Programming and Monitoring.
Anybus module
Interface enabling the support of:
CANopen, EtherCAT, EtherNet/IP, Modbus-TCP, POWERLINK, PROFIBUS, PROFINET
Digital I/O module
Interface with 8 digital inputs and outputs.
Control/ monitor by Ethernet commands.
Interaction with sequencer will make power supply act as a power PLC.
Isolated contacts module
Floating interlock or 24 V enable.
4 make or brake relay contacts.
Can be linked to power supply status.
Ethernet programmable/ monitoring.
Isolated.
Serial module
Serial programming/ monitoring.
RS232, RS485, RS422 and USB.
High accuracy.
Master/Slave module (SM15K)
Interface for SM15K Master/Slave.
High-power systems: 15 to 900 kW.
Unmatched system dynamics.
M/S Output Assembly kit (SM15K)
Output bus bar kits for SM15K
Several kits for series or parallel.
Easy assembly and disassembly.
Enables modular power system.
Request a quote
Select your model, options, and interfaces, and enter your application details. We’ll then provide you with a tailored quote. For additional options or more information, feel free to contact one of our experts.
Support items
Downloads
| Data sheets | Type/Format | Size |
|---|---|---|
| Data sheet SM15K series | 502.17 KB | |
| Data sheet Interfaces SM15K series | 443.62 KB |
| Manuals | Type/Format | Size |
|---|---|---|
| Quick start manual SM15K series | 592.09 KB | |
| Product manual SM15K series | 1.76 MB | |
| Manual Interfaces SM15K series | 1.34 MB | |
| Manual Ethernet and Sequencer programming SM15K series | 1.46 MB |
| Applications Notes | Type/Format | Size |
|---|---|---|
| Application note Safe operation | 364.71 KB | |
| Application note Battery charging | 54.34 KB | |
| Application note Simulation software SM15K series | 524.73 KB | |
| Application note Master/Slave parallel operation SM70-CP-450 | 8.71 MB | |
| Application note Master/Slave parallel operation SM210-CP-150 | 20.72 MB | |
| Application note Master/Slave series operation SM500-CP-90 | 2.39 MB | |
| Application note Master/Slave parallel operation SM500-CP-90, SM1000-CP-45 and SM1500-CP-30 | 21.39 MB |
| Software | Type/Format | Size |
|---|---|---|
| DE Applications bundle description | 104.29 KB | |
| DE Applications | zip | 417.72 MB |
| Example Code and Software | zip | 168.81 KB |
| Firmware | Type/Format | Size |
|---|---|---|
| Release notes firmware update SM15K series | 173.71 KB | |
| Firmware update SM15K series | zip | 20.78 MB |
| 3D drawings | Type/Format | Size |
|---|---|---|
| 3D drawings SM15K series | zip | 17.84 MB |