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Série XR

Alimentation DC Programmable

Key Facts

  • 136 models
  • 2U rack-mount
  • 2 kW, 4 kW, 6 kW, 8 kW, 10 kW power levels
  • Models from 5 Vdc to 10000 Vdc output voltage
  • Models from 0.2 Adc to 600 Adc output current
  • SCPI Remote Programming API
  • High Accuracy Measurements
  • Programmable Protection Limits
  • NI LabVIEW™ and IVI Driver
  • Build-Time: 16-20 Weeks
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Models up to 10,000 Vdc, up to 600 Adc, with Current-Fed Topology and Flexible Options

Unparalleled 2U Programmable Power Supply Voltage-Current Range

The XR Series was designed from the ground up for high reliability and industry leading 2U (3.5” height) rack-mount programmable power levels, at: 2 kW, 4 kW, 6 kW, 8 kW, and 10 kW. The XR Series features the largest voltage range in Magna-Power's product offering, from 5 Vdc to 10,000 Vdc, all utilizing the company's signature current-fed power processing to deliver robust power conversion. In addition, high accuracy programming and monitoring levels allow confidence in power supply measurements, eliminating the need for external power meters.

Current-Fed Topology: Robust Power Conversion

All MagnaDC programmable DC power supplies utilize high-frequency IGBT-based power processing in current-fed topology. This topology adds an additional stage over the conventional voltage-fed topology for enhanced control and system protection, ensuring that even under a fault condition, the power supply will self-protect. Due to the self-protecting characteristics of this topology, the possibility of fast rising current spikes and magnetic core saturation is eliminated.

In addition to its robust topology, key performance characteristics of MagnaDC programmable DC power supplies include:

  • High-accuracy voltage and current programming accuracy
  • Class-leading line and load regulation performance
  • High 3Φ AC input power factor with in-rush limiting circuitry
  • Computer and user I/O isolated from the power supply output

For more details, read: Current-Fed Power Processing—Ride Through Robustness

XR Series Current-Fed Topology Image

Designed and Manufactured in the USA, Available Worldwide

For complete control of quality, MagnaDC programmable DC power supplies are designed and manufactured at Magna-Power's vertically integrated USA manufacturing facility in Flemington, New Jersey. Heat-sinks and chassis are machined from aluminum. All sheet metal is fabricated and powder coated in-house. Magnetics are wound-to-order from validated designs based on a model's voltage and current. An automated surface-mount production line places components on printed circuit boards for control, driver, auxiliary power, and display circuits. And finally after assembly, products undergo comprehensive test and calibration, followed by an extended burn-in period.

For more details: Tour Our Manufacturing Operations.

XR Series Made in the USA Image

Standard Safety Features

MagnaDC programmable DC power supplies have extensive diagnostic functions, including:

  • AC Phase Loss
  • Excessive Thermal Conditions
  • Over Voltage Trip (Programmable)
  • Over Current Trip (Programmable)
  • Cleared Fuse
  • Excessive Program Line Voltage
  • Interlock Fault

When in standby or diagnostic fault, the AC mains are mechanically disconnected by an embedded AC contactor, providing confidence that the unit is only processing power when desired.

Finally, with a dedicated +5V interlock input pin and included +5V reference on all models, external emergency stop systems can be easily integrated using an external contact.

High Performance Master-Slave Operation

All MagnaDC programmable DC power supplies come with master-slaving capability.

The MagnaDC master-slaving strategy helps to ensures no degradation in performance as units are added in parallel or series by providing gate drive signals directly from the master to the slave units. This strategy ensures one control loop for the system and eliminates the noise susceptibility commonly found when sending analog control references over long distances.

The Universal Interface Device 47 (UID47) accessory eases master-slave parallel or series configuration of Magna-Power DC power supplies, enabling near equal current or voltage sharing, depending on the configuration.

Master-slave series operation is supported to combined voltages up to the product's DC Output Isolation specification. No external blocking diodes are requires for series operation.

Included Software and Drivers

All MagnaDC programmable DC power supplies come standard with National Instruments LabVIEW and IVI drivers. In addition, the support SCPI command set provides an easy to use API using ASCII commands over any interface.

In addition to being able to develop your own software, Magna-Power's Remote Interface Software is also included with all power supplies. The software provides the user with an easy and intuitive method to operate a Magna-Power Electronics power supply with computer control. The Remote Interface Software has six different windows, including:

  • Virtual Control Panel. Use a virtual front panel on the desktop to remote control the power supply from a computer.
  • Command Panel. Explore all the available commands, along with logs of what string the software is sending to the power supply; used for developing your own software.
  • Register Panel. Quickly get the status of all the power supply registers from one screen.
  • Calibration Panel. Recalibrate internal digital potentiometers.
  • Firmware Panel. Upgrade the power supply's firmware.
  • Modulation Panel. Emulate non-linear profiles, such as solar arrays, pseudo-resistance for N+1 redundancy without wires, or automatic compensation for leadless remote sensing.

The included Remote Interface software supports RS232, LXI TCP/IP Ethernet, and IEEE-488, along with the USB and RS485 converters.

XR Series Software + Drivers Image

External User I/O for Analog Control

Using the rear isolated 37-pin I/O connector, included as standard, the MagnaDC programmable power supplies can be completely controlled and monitored using external signals. The voltage, current, over voltage and over current set points are set by applying a 0-10V analog signal. Each diagnostic condition is given a designated pin, which reads +5V when high. Reference +5V and +10V signals are provided, eliminating the need for external voltage signals and allowing the use of dry contacts.

Also, the power supply features a normally closed external interlock, which when enabled, allows the power supply to be tied in with other emergency stop equipment. All these pins are isolated from the output terminals and referenced to earth-ground as standard—no additional isolation equipment or options necessary.

The following list summarizes the available I/O from the power supply:

  • 4 analog inputs (0-10V)
  • 2 analog outputs (0-10V)
  • 5 digital inputs (5V)
  • 15 digital outputs (5V)
  • +2.5V, +5V and +10V reference signals

With the High Slew Rate Output (+HS) option equipped, high bandwidth operation is enabled along with fast rise times, allowing the MagnaDC programmable DC power supplies to address requirements for Hardware-in-the-Loop (HIL).

XR Series External User I/O Image

Front Panel - Standard

Front Panel - Standard

Front Panel - C Version

Front Panel - C Version
POWER: Indicates power output
STANDBY: Indicates control power only
Function Keys
MENU: Selects function
ITEM: Selects item within function
V/I DIS: Displays voltage-current settings
TRIP DIS: Displays OVT and OCT setting
CLEAR: Clears settings or resets fault
ENTER: Select item
Meters display output voltage, output current, voltage set point, current set point, over voltage trip and over current trip
Power switch energizes control circuits without engaging main power
Engages and disengages main power via integrated mechanical contactor
Stepless rotary knob to set voltage-current
Diagnostic Alarms
LOC: Interlock
PGL: External input voltage beyond limits
PHL: Under-voltage AC input
THL: Over-temperature condition
OVT: Over-voltage protection has tripped
OCT: Over-current protection has tripped
REM SEN: Remote sense enabled
INT CTL: Front panel start/stop/clear enabled
EXT CTL: External start/stop/clear enabled
ROTARY: Front panel rotary knob input
EXT PGM: External analog voltage-current control
REMOTE: Computer control

Model Ordering Guide

For both ordering and production, XR Series models are uniquely defined by several key characteristics, as defined by the following diagram:

XR Series Ordering Guide

XR Series Models

There are 136 different models in the XR Series spanning power levels: 2 kW, 4 kW, 6 kW, 8 kW, 10 kW. To determine the appropriate model:

  1. Select the desired Max Voltage (Vdc) from the left-most column.
  2. Select the desired Max Current (Adc) from the same row that contains your desired Max Voltage.
  3. Construct your model number according to the model ordering guide.
  2 kW 4 kW 6 kW 8 kW 10 kW    
Max Voltage (Vdc) Max Current (Adc) Ripple (mVrms) Efficiency
5 375 600 N/A N/A N/A 50 80%
10 200 375 600 N/A N/A 50 84%
16 125 250 375 500 600 50 84%
20 100 200 300 375 500 45 87%
25 80 160 240 320 400 45 88%
32 62 124 186 250 310 40 88%
40 50 100 150 200 250 40 88%
50 40 80 120 160 200 50 90%
60 33 66 100 133 166 60 91%
80 25 50 75 100 125 60 91%
100 20 40 60 80 100 60 91%
125 16 32 48 64 80 100 91%
160 12 24 36 50 60 120 91%
200 10 20 30 40 50 125 92%
250 8 16 24 32 40 130 92%
300 6.6 13.2 19.8 26.4 33.3 160 92%
375 5.3 10.6 15.9 21.3 26.5 170 92%
400 5 10 15 20 25 180 92%
500 4 8 12 16 20 220 93%
600 3.3 6.6 9.9 13.3 16.5 250 93%
800 2.5 5 7.5 10 12.5 300 93%
1000 2 4 6 8 10 350 93%
1250 1.6 3.2 4.8 6.4 8 375 93%
1500 1.3 2.6 4.0 5.3 6.6 400 93%
2000 1 2 3 4 5 450 93%
3000 0.6 1.3 2 2.6 3.3 Contact 93%
4000 0.5 1 1.5 2 N/A 6500 93%
6000 0.33 0.66 1 1.33 N/A 7500 93%
8000 0.25 0.5 0.75 1 N/A 8500 93%
10000 0.2 0.4 0.6 0.8 N/A 9500 93%
AC Input Voltage (Vac) Input Current Per Phase (Aac)    
208/240 Vac, 1Φ 17 N/A N/A N/A N/A    
208/240 Vac, 3Φ 8 15 22 29 35    
380/415 Vac, 3Φ 5 9 12 16 19    
440/480 Vac, 3Φ 4 8 11 14 17    


The following specifications are subject to change without notice. Unless otherwise noted, all specifications measured at the product's maximum ratings.

AC Input Specifications
Specification Value
1Φ AC Input Voltage
1Φ, 2-wire + ground, Available on 2 kW models only
208 Vac (operating range 187 - 229 Vac)
240 Vac (operating range 216 - 264 Vac)
3Φ AC Input Voltage
3Φ, 3-wire + ground; Available on all models
208 Vac (operating range 187 to 229 Vac)
240 Vac (operating range 216 to 264 Vac)
380 Vac (operating range 342 to 440 Vac)
415 Vac (operating range 373 to 456 Vac)
440 Vac (operating range 396 to 484 Vac)
480 Vac (operating range 432 to 528 Vac)
Input Frequency 50 Hz to 400 Hz
Power Factor >0.92 at max power; models with 3Φ AC input
0.70 at max power; models with 1Φ AC input
AC Input Isolation ±2500 Vdc, maximum input voltage to ground
DC Output Specifications
Specification Value
Voltage Ripple Model specific. Refer to chart of available models.
Line Regulation Voltage mode: ± 0.004% of full scale
Current mode: ± 0.02% of full scale
Load Regulation Voltage mode: ± 0.01% of full scale
Current mode: ± 0.04% of full scale
Load Transient Response 2 ms to recover within ±1% of regulated output with a 50% to 100% or 100% to 50% step load change
Stability ± 0.10% for 8 hrs. after 30 min. warm-up
Efficiency 80% to 93%
Model specific. Refer to chart of available models.
Maximum Slew Rate
Standard Models
100 ms for an output voltage change from 0 to 63%
100 ms for an output current change from 0 to 63%
Maximum Slew Rate
Models with High Slew Rate Output (+HS) Option
4 ms for an output voltage change from 0 to 63%
8 ms for an output current change from 0 to 63%
Standard Models
3 Hz with remote analog voltage programming
2 Hz with remote analog current programming
Models with High Slew Rate Output (+HS) Option
60 Hz with remote analog voltage programming
45 Hz with remote analog current programming
DC Output Isolation
Models Rated ≤1000 Vdc
±1000 Vdc, maximum output voltage to ground
DC Output Isolation
Models Rated >1000 Vdc and ≤3000 Vdc
±(1500 Vdc + Vo/2), max output voltage to ground, where Vo is the max rated voltage
DC Output Isolation
Models Rated >3000 Vdc
No output isolation, specify positive or negative output polarity at time of order
Programming Interface Specifications
Specification Value
Front Panel Programming Stepless aluminum rotary knobs and keypad
Computer Interface RS232, D-sub DB-9, female (Standard)
LXI TCP/IP Ethernet RJ45 (Option +LXI)
IEEE-488 GPIB (Option +GPIB)
External User I/O Port
Analog and Digital Programming
37-pin D-sub DB-37, female
Referenced to Earth ground; isolated from power supply output
See User Manual for pin layout
Remote Sense Limits (Wired)
Available for models ≤ 1000 Vdc
3% maximum voltage drop from output to load
Accuracy Specifications
Specification Value
Voltage Programming Accuracy ± 0.075% of max rated voltage
Over Voltage Trip Programming Accuracy ± 0.075% of max rated voltage
Current Programming Accuracy ± 0.075% of max rated current
Over Current Trip Programming Accuracy ± 0.075% of max rated current
Voltage Readback Accuracy ± 0.2% of max rated voltage
Current Readback Accuracy ± 0.2% of max rated current
External User I/O Specifications
Specification Value
Analog Programming and Monitoring Levels 0-10 Vdc
Analog Output Impedances Voltage output monitoring: 100 Ω
Current output monitoring: 100 Ω
+10V reference: 1 Ω
Digital Programming and Monitoring Limits Input: 0 to 5 Vdc, 10 kΩ input impedance
Output: 0 to 5 Vdc, 5 mA drive capacity
Physical Specifications
Specification Value
Racking Standard EIA-310
Rear Support Rails Included
Size and Weight
2 kW Models
3.50" H x 19" W x 24" D (8.89 x 48.26 x 60.96 cm)
45 lbs (20.41 kg)
Size and Weight
4 kW Models
3.50" H x 19" W x 24" D (8.89 x 48.26 x 60.96 cm)
47 lbs (21.32 kg)
Size and Weight
6 kW Models
3.50" H x 19" W x 24" D (8.89 x 48.26 x 60.96 cm)
48 lbs (21.77 kg)
Size and Weight
8 kW Models
3.50" H x 19" W x 24" D (8.89 x 48.26 x 60.96 cm)
48 lbs (21.77 kg)
Size and Weight
10 kW Models
3.50" H x 19" W x 24" D (8.89 x 48.26 x 60.96 cm)
48 lbs (21.77 kg)
Environmental Specifications
Specification Value
Ambient Operating Temperature -25°C to 50°C
Storage Temperature -25°C to +85°C
Humidity Relative humidity up to 95% non-condensing
Temperature Coefficient 0.04%/°C of maximum output voltage
0.06%/°C of maximum output current
Air Flow Side air inlet, rear exhaust
Regulatory Specifications
Specification Value
EMC Complies with 2014/30/EU (EMC Directive)
CISPR 22 / EN 55022 Class A
Safety Complies with EN61010-1 and 2014/35/EU (Low Voltage Directive)
CE Mark Yes
RoHS Compliant Yes

Dimensional Diagrams

The following are vectorized diagrams for the XR Series. Refer to the Downloads section for downloadable drawings.

Front Panel
Rear Panel
Side Panel
Communications Interface
LXI TCP/IP Ethernet Option (+LXI)
Communications Interface
IEEE-488 GPIB Option (+GPIB)
Standard Output Bus
Models ≤1000 Vdc
High Voltage Output Bus
Models >1000 Vdc and ≤3000 Vdc
Very High Voltage Output Bus
Models >3000 Vdc
Very High Voltage Output Cable
Included, Models Above 3000 Vdc

Integrated Options

The following are the standard integrated options available for the XR Series. Refer to the Model Ordering Guide for details on how the option code is specified in the full model number.

Software Add-ons

The XR Series comes standard with control software and drivers available under Downloads. The following are additional software add-ons available.


The following is a list of available external accessories for the XR Series.


RS485 Converter

Order Code: RS485
Industrial RS232 to Addressable RS485 Converter. Plugs into product's RS232 port.

UID46: Universal Interface Device 46

Order Code: UID46
Master-slave interface device for load sharing. Includes interface device and (2) D-Sub 37 cables.

UID47: Universal Interface Device 47

Order Code: UID47
Master-slave interface device for load sharing. Includes interface device and (2) D-Sub 37 cables.

USB Edgeport Converter

Order Code: USB
Industrial Plug and Play USB to RS232 Converter. Adapter plugs into product's RS232 port.


The following downloads are for the SL Series


XR Series Datasheet [4.4.1] [EN] [PDF]
XR Series Datasheet [4.4.1] [ZH] [PDF]



MagnaDC IVI Driver [] [MSI]
LabWindows Driver [1.02] [ZIP]


Photovoltaic Power Profiles Emulation [] [ZIP] [License Required]