ML Series 500 kW to 10 MW Water-Cooled Programmable DC Power Supplies
Industry-Leading Power Density • Current-Fed Topology • Integrated Harmonic Neutralizers • Made in USA
High Power Density for Demanding Industrial and Research Applications
The Magna-Power ML Series delivers 500 kW and 1,000 kW (1 MW) of high-precision programmable DC power per cabinet. Utilizing liquid chill plates and master-slave paralleling, systems scale seamlessly beyond 10 MW with up to 96% efficiency and four times the power density of standard air-cooled designs.
Water-Cooled Density
Integrated internal copper/PEX liquid manifolds dissipate heat efficiently, enabling continuous full-power rating up to 50°C ambient while preserving valuable cleanroom and laboratory floor space.
Harmonic Neutralization
Embedded 12-pulse (500 kW) and 24-pulse (1 MW) passive neutralizers eliminate input current harmonics at the source, ensuring low total harmonic distortion (THD) and effortless IEEE 519 compliance.
12-Bit Digital Precision
Features 0.025% programming resolution, ±0.075% voltage and current programming accuracy, isolated 37-pin user I/O, standard SCPI over RS232, and optional LXI TCP/IP Ethernet interface.
Current-Fed Topology & Industrial Protection
Built for durability, safety, and system integration across high-capacity electrical testing setups.
Current-Fed Power Processing
Uses an inductive DC bus stage that inherently limits fault energy during load transients and short circuits. Prevents dangerous current spikes and magnetic core saturation for maximum uptime.
Master-Slave Scalability
Master gate-drive synchronization allows parallel coupling of multiple 500 kW or 1 MW power supplies into a unified 10 MW+ system with uniform current sharing under a single control interface.
Isolated User I/O & PLC Support
Includes an isolated 37-pin D-sub rear connector supporting 0–10 V analog programming, +5V digital status outputs, and interlock control for direct interfacing with factory PLCs and HIL simulators.
Comprehensive Safety Features
Integrated soft-start circuitry, programmable over-voltage (OVT) and over-current (OCT) trips, distributed thermal sensors, and an automated internal AC contactor for physical mains disconnect.
ML Series Model Specifications
Select your required maximum voltage and output current rating. All configurations maintain up to 96% efficiency with full-scale programmable regulation.
| Max Voltage (Vdc) | 500 kW Current (Adc) | 1000 kW (1 MW) Current (Adc) | Ripple (mVrms) | Efficiency |
|---|---|---|---|---|
| 100 Vdc | 5000 A | — | 100 mV | 91% |
| 125 Vdc | 4000 A | — | 100 mV | 91% |
| 160 Vdc | 3125 A | — | 120 mV | 92% |
| 200 Vdc | 2500 A | 5000 A | 125 mV | 92% |
| 250 Vdc | 2000 A | 4000 A | 130 mV | 92% |
| 300 Vdc | 1666 A | 3333 A | 160 mV | 93% |
| 400 Vdc | 1250 A | 2500 A | 180 mV | 95% |
| 500 Vdc | 1000 A | 2000 A | 220 mV | 95% |
| 600 Vdc | 833 A | 1666 A | 300 mV | 95% |
| 800 Vdc | 625 A | 1250 A | 400 mV | 96% |
| 1000 Vdc | 500 A | 1000 A | 500 mV | 96% |
| 1250 Vdc | 400 A | 800 A | 500 mV | 96% |
| 1600 Vdc | 312 A | 625 A | 600 mV | 96% |
| 2000 Vdc | 250 A | 500 A | 800 mV | 96% |
| 3000 Vdc | 166 A | 333 A | 1000 mV | 96% |
| 4000 Vdc | 125 A | 250 A | 1100 mV | 96% |
| 5000 Vdc | 100 A | 200 A | 1500 mV | 96% |
| 6000 Vdc | 83 A | 166.6 A | 2000 mV | 96% |
Detailed System Specifications
Complete electrical, environmental, cooling, and mechanical parameters for international procurement teams.
AC Input Configuration
440 Vac or 480 Vac, 3-phase, 50/60 Hz
Input Voltage Tolerance: ±10%
Power Factor: >0.96 at rated load
Input Isolation: ±2000 Vdc to ground
Regulation & Stability
Line Regulation: ±0.04% Voltage, ±0.03% Current
Load Regulation: ±0.02% Voltage, ±0.06% Current
Stability: ±0.10% over 8 hours
Temperature Coeff: 0.04%/°C (V), 0.06%/°C (I)
Programming & Accuracy
Digital Resolution: 12-bit (0.025%)
Programming Accuracy: ±0.075%
Measurement Accuracy: ±0.20%
Command Protocol: Standard SCPI (ASCII)
Liquid Cooling Requirements
Max Coolant Inlet Temp: 25°C
Max Operating Pressure: 80 psi
Flow Rate: 9 GPM (500 kW), 15 GPM (1 MW)
Fittings: 1" Female NPT (Copper/PEX/Brass path)
Dimensions (500 kW Unit)
Power Cabinet: 76.4" H x 48" W x 31.5" D (2500 lbs)
Neutralizer: 76.4" H x 24" W x 31.5" D (1500 lbs)
Total Weight: 4000 lbs (1814 kg)
Dimensions (1000 kW Unit)
Power Cabinet: 76.4" H x 72" W x 31.5" D (3750 lbs)
Neutralizer: 76.4" H x 48" W x 31.5" D (2850 lbs)
Total Weight: 6600 lbs (2994 kg)
USA Manufacturing & Global Compliance
Magna-Power instruments are designed, manufactured, and tested under one roof at our 73,500 sq-ft headquarters in Flemington, New Jersey, USA.
Full In-House Quality Control
Every magnetics component, printed circuit board assembly, sheet metal enclosure, and liquid cooling manifold is fabricated in-house to maintain strict quality standards and predictable 16–18 week lead times.
International Regulatory Standards
ML Series systems comply with EMC Directive 2014/30/EU (CISPR 22 / EN 55022 Class A) and Low Voltage Directive 2014/35/EU (EN61010-1). Fully CE and UKCA certified for worldwide deployment.
Global Service & Support Network
Backed by factory technical support in New Jersey alongside dedicated service and support partners covering Europe, the United Kingdom, Australia, New Zealand, China, and East Asia.
Questions Asked by Overseas Engineering Buyers
What power range can be achieved with the ML Series?
How does water cooling benefit high-power laboratory installations?
What water quality and flow parameters are required?
What programming options and software drivers are supported?
What is the typical lead time for international delivery?
Speak Directly with Magna-Power Applications Engineers
Need custom voltage/current matrices, water cooling integration support, or an official formal quote for your project? Contact our engineering team today.