Leyu provides high power switching power supplies for industrial systems that require higher DC output power, wide voltage selection, high current capability and advanced output control.
The current product range covers power levels from approximately 1.2kW to 5kW, including adjustable and programmable DC power supply options for industrial automation, testing equipment, battery-related applications and other high-power DC loads.
Depending on the series, available functions include:
Adjustable output voltage
Adjustable output current
Constant Voltage / Constant Current operation
Remote control
External analog control
Programmable output functions
Parallel current sharing
High-current DC output
Choose the appropriate high-power power supply according to your required DC voltage, maximum current, continuous power, adjustment range, control method and application.
Series / Model | Power Level | Main Direction | Recommended Use |
|---|---|---|---|
ZSN3-1K2 | 1200W class | Industrial high-power DC supply | Industrial equipment and automation |
ZSN3-1K5 | 1500W class | Adjustable voltage & current | Testing, R&D and controlled DC loads |
ZSN5-3K0 | 3000W class | Programmable & parallel-capable | Automation and scalable power systems |
ZSN3-5K0 | 5000W class | High-power adjustable DC supply | Heavy industrial DC loads |
SV-5000 | 5000W class | High-power single DC output | Industrial equipment |
The current High-Power Switching Power Supply category includes these 1.2kW, 1.5kW, 3kW and 5kW-class products.
A 1200W power supply can support industrial equipment requiring more output capacity than standard enclosed AC-DC power supplies while remaining below multi-kilowatt system requirements.
It can be considered for:
Industrial controllers
Automation equipment
Electronic test systems
Production equipment
High-current DC loads
For final selection, confirm both the required DC voltage and maximum continuous current.
The ZSN3-1K5 is designed as a 1500W high power adjustable DC supply for applications that require flexible voltage and current control. The current product positioning includes adjustable output up to the 220V class for precision industrial testing.
This type of supply is suitable when a fixed-output industrial power supply cannot meet the operating requirements.
Typical applications include:
Electrical testing
Component testing
R&D equipment
Industrial automation
Battery-related systems
Adjustable DC loads
The ZSN5-3K0 provides a higher level of system control for industrial applications requiring approximately 3kW of DC power.
The current product is positioned as an intelligent programmable DC power supply with parallel current sharing, making it particularly suitable for systems that may require output control or future power expansion.
Typical applications include:
Automated test systems
Industrial automation
High-power electronic equipment
Power electronics testing
Scalable DC systems
For larger industrial loads, Leyu provides 5000W-class high power switching power supplies.
Current products include the adjustable ZSN3-5K0 and the SV-5000 high-power single-output series.
These units can be considered for applications requiring:
Higher continuous power
Higher output current
Industrial DC bus supply
Production equipment
Heavy-duty electronic loads
High-power power supplies may be selected according to required voltage as well as total wattage.
Typical voltage levels include:
12V DC
24V DC
36V DC
48V DC
At lower output voltages, high-power systems can deliver significantly higher current.
This makes low-voltage high-current power supplies suitable for applications such as:
Industrial motors
Battery systems
High-current test loads
Automation equipment
DC-powered machinery
Applications operating at higher DC bus voltages may require outputs such as:
72V DC
96V DC
110V DC
These voltage levels can be used in selected industrial equipment, test systems and specialized DC power architectures.
Selected adjustable high-power models extend into higher DC output ranges, including the 150V and 220V class. The current ZSN3-1K5 product is positioned for adjustable operation up to 220V.
For high-voltage DC applications, confirm:
Maximum output voltage
Required current
Insulation requirements
Load characteristics
Protection requirements
Installation safety
before selecting a model.
High output power at low DC voltage results in high current demand.
For example, a multi-kilowatt 12V or 24V system may require very high output current compared with a standard industrial power supply.
When selecting a high-current DC power supply, engineers should consider:
Maximum continuous current
Cable cross-sectional area
Terminal current rating
Connector design
Voltage drop
Cooling
Busbar requirements
Over-current protection
High-current system design should therefore consider the complete power path, not only the nominal output wattage.
Selected high-power DC power supplies support CV and CC operating modes.
In Constant Voltage (CV) mode, the power supply regulates the output to maintain the selected voltage while the connected load determines the current demand.
CV operation can be used for:
Industrial electronic equipment
Motors and controllers
DC-powered machinery
Electronic test loads
In Constant Current (CC) mode, the supply limits or regulates output current according to the selected setting.
CC operation can be useful for:
Controlled charging applications
Component testing
Power electronics testing
Current-limited loads
R&D equipment
The required control behavior should be confirmed according to the application before selecting a model.
Not every high-power application requires the same level of control.
An adjustable power supply allows the operator or external system to modify output voltage or current within the supported range.
It is suitable for:
Laboratory testing
Production testing
Equipment commissioning
Variable-voltage loads
R&D applications
A programmable DC power supply provides more advanced control capability for automated systems.
Depending on the model, programmable functions may include:
Remote ON/OFF
External control
Voltage adjustment
Current adjustment
Digital communication
Automated system integration
The ZSN5-3K0 is currently positioned as an intelligent programmable DC power supply with parallel current sharing, while the ZSN3 family is primarily positioned around high-power adjustable DC output.
Choose a programmable model when the power supply must communicate with or respond to an automated control system.
High-power industrial systems may require the power supply to be controlled from a PLC, test station or supervisory system instead of only from the front panel.
Depending on the selected model, control requirements may include:
Remote ON/OFF
External voltage adjustment
External current adjustment
Analog control signal
Dry contact control
Digital communication
Before ordering, specify the exact control method required by your system.
Control Interface Required:
Local / Analog / Remote ON-OFF / Digital Communication
This helps ensure the correct high-power series is selected.
Some industrial systems require more power than one standalone power supply can provide.
Selected programmable high-power models support parallel current-sharing operation, allowing compatible units to work together as part of a larger power system. The current ZSN5-3K0 product is specifically marketed with parallel current-sharing capability.
Parallel operation can provide:
Higher total output power
Scalable system architecture
Flexible project expansion
Modular maintenance
Easier capacity planning
When designing a parallel system, always confirm:
Model compatibility
Output voltage matching
Current-sharing method
Control connection
Cooling
Wiring
Protection coordination
Do not connect high-power supplies in parallel unless the specific model is designed to support this operating mode.
Start with the maximum continuous load requirement.
Typical selection levels in the current Leyu high-power range include:
1200W
1500W
3000W
5000W
Do not select a power supply based only on peak load unless the product specification confirms that the peak operating condition is supported.
Determine whether your equipment requires:
Fixed DC voltage
Adjustable DC voltage
Wide voltage adjustment
Also identify the minimum and maximum voltage needed during operation.
Use:
Current (A) = Power (W) ÷ Voltage (V)
A lower output voltage at the same power level requires higher current.
This directly affects:
Wiring
Terminals
Connectors
Cooling
Protection design
If the application requires both voltage control and current limiting, select a model with suitable CV/CC capability.
This is particularly relevant for:
Testing
Charging
Power electronics
Variable loads
Ask whether the system needs:
Manual adjustment
External potentiometer
Analog control
Remote ON/OFF
PLC integration
Digital communication
A simple adjustable supply may be sufficient for manual testing, while automated production systems may benefit from a programmable model.
If future system power may increase, consider whether parallel operation is required.
Selected programmable models can provide a more scalable architecture than one fixed high-power unit.
High-power supplies can have different AC input specifications depending on model and power level.
Always verify:
AC input voltage
Input current
Single-phase / applicable input configuration
Circuit breaker requirements
Wiring size
before final selection.
Kilowatt-level power supplies generate substantial heat.
Confirm:
Cooling method
Fan airflow
Cabinet ventilation
Ambient temperature
Installation clearance
Air inlet and outlet space
Do not block cooling paths or install high-power units in tightly enclosed areas without appropriate thermal design.
Testing and precision industrial applications may require tighter output quality than general machinery.
Depending on the application, review:
Voltage regulation
Current regulation
Ripple and noise
Load regulation
Line regulation
before selecting the final model.
Depending on the product series, high-power supplies may include protection against conditions such as:
Over-voltage
Over-current
Overload
Short circuit
Over-temperature
The exact protection behavior varies by model and should be confirmed from the individual technical specification.
Feature | Standard Switching Power Supply | High Power DC Power Supply |
|---|---|---|
Typical Power Level | Tens to hundreds of watts | 1kW to multi-kilowatt |
Output | Usually fixed | Fixed or adjustable options |
Output Current | Low to moderate | Can be very high |
CV/CC Control | Limited depending on model | Available on selected models |
Remote Control | Basic or unavailable | Available on selected models |
Programmable Control | Less common | Available on selected series |
Parallel Operation | Usually limited | Available on selected models |
Typical Application | General machinery and electronics | Industrial testing, automation and heavy DC loads |
If your application requires a lower-power fixed DC output rather than kilowatt-level adjustable power, explore our Single Output Power Supply range.
High-power DC supplies can support industrial equipment requiring greater output current or power than standard AC-DC supplies.
Typical systems include:
Automated machinery
Industrial actuators
Production equipment
DC motor systems
Control and power electronics
Adjustable voltage and current make high-power power supplies useful for:
Product validation
Production-line testing
Electronic load testing
Component testing
Power electronics development
The ZSN3-1K5 is currently positioned specifically for precision industrial testing.
Selected adjustable CV/CC power supplies can be used as part of battery-related test or charging systems when their electrical characteristics match the required charging process.
Battery chemistry, charging profile, voltage limits and current limits must be confirmed separately.
Programmable high-power DC supplies can support suitable:
EV component testing
DC/DC converter testing
Inverter development
Motor controller testing
Power electronics R&D
For automated testing, control interface requirements should be defined during model selection.
Research and development teams may require flexible power sources that allow:
Voltage adjustment
Current adjustment
Repeatable test conditions
Remote control
Load simulation
Automated testing
An adjustable or programmable high-power supply can provide greater flexibility than a fixed industrial supply.
High-power DC supplies can also support selected industrial processes requiring stable, controlled DC output.
The exact voltage, current, duty cycle and environmental conditions should be provided before product selection.
For projects requiring electrical or control specifications beyond standard configurations, Leyu can evaluate OEM or ODM high-power power supply requirements.
Please provide:
AC input voltage
Required DC output voltage
Voltage adjustment range
Maximum output current
Continuous output power
CV/CC requirement
Control method
Remote ON/OFF requirement
Communication interface requirement
Parallel operation requirement
Operating temperature
Installation dimensions
Application
Estimated quantity
Providing a complete load profile helps determine whether a standard ZSN or SV model is suitable or whether a customized solution should be evaluated.
Power Supply
For the complete Leyu industrial power supply range.
Single Output Power Supply
For lower-power equipment requiring one fixed regulated DC output.
DIN Rail Power Supply
For PLC systems and industrial control cabinet installation.
DC-DC Converter
For applications where the available input source is DC rather than AC mains.
UPS Power Supply with Battery Charger
For systems requiring DC power together with battery charging and backup capability.
In this product category, high-power switching power supplies cover kilowatt-level DC output, including approximately 1.2kW, 1.5kW, 3kW and 5kW models.
An adjustable power supply allows voltage or current to be changed within a supported range. A programmable supply adds more advanced control options for automated systems, such as remote control, external control or communication functions depending on model.
CV means Constant Voltage and CC means Constant Current. CV mode regulates the selected output voltage, while CC mode limits or regulates output current according to the configured operating condition.
Only models specifically designed for parallel operation should be connected this way. Selected programmable products, including the current ZSN5-3K0, are designed with parallel current-sharing functionality.
Start with the maximum continuous load power, then confirm the required DC voltage, output current, CV/CC requirements, adjustment range, control interface and future expansion requirements. Choose a supply that meets the complete operating profile rather than wattage alone.
Send us your electrical and control requirements for faster model selection.
Our team can help evaluate a suitable ZSN or SV Series high power switching power supply according to your voltage, current, power and control requirements.
