High Frequency IGBT-based Switch-Mode Design

The SL Series utilizes the latest IGBT devices to drive down size and increase performance. The high frequency design delivers fast transient response and low output ripple. This performance coupled with Magna-Power's rugged current-fed power processing, enables confidence in even the most demanding applications.

Fully Programmable Power

All SL Series functions and features of are available and programmable from a variety of control methods, including:

  • Stepless front panel knobs
  • 37-pin isolated analog-digital I/O
  • Computer interface with software and drivers

Various programming interfaces are available, such as LXI TCP/IP Ethernet (+LXI), IEEE-488 GPIB (+GPIB), Edgeport USB, Accessory (+USB), RS485 Accessory (+RS485).

Industry Leading 1U Power Density, Many Input AC Options

The SL Series builds on over 30 years of power supply innovation at Magna-Power, designed from the ground up to meet the highly reliable power dense demands of ATE system integrators with models at 1.5 kW, 2.6 kW, 4 kW, 6 kW, and 8 kW all within a 1U (1.75” height) package. All models are available with 3-phase input at 208 Vac, 240 Vac, 380 Vac, 415 Vac, 440 Vac or 480 Vac, which dramatically lowers input current draw. 1.5 kW models are additional available with a power factor corrected (PFC) universal single phase AC input (85 - 265 Vac).

Designed for Safety

SL Series power supplies have extensive diagnostic functions, including: phase loss, excessive thermal conditions, over voltage trip (programmable), over current trip (programmable), cleared fuse, and excessive program line voltage. When in standby or diagnostic fault, the AC mains are mechanically disconnected via an embedded AC contactor, providing confidence that the unit is only processing power when desired.

Scalable Master-Slave Operation

For maximum flexibility, all SL Series power supplies can be scaled in a master-slave configuration for higher voltage or current output. Using the plug and play Universal Interface Device (+UID47), units are tied together in via their 37-pin I/O, allowing an increase in system current when configured in parallel or increase in system voltage when configured in series—up to the power supply's output isolation rating.

Extensive Programming Support and Included Software

All SL Series power supplies come standard with a National Instruments LabVIEW™ and LabWindows™/CVI drivers. In addition, an IVI driver is included supporting Visual C++, Visual C#, Visual Basic .NET, MATLAB, Measure Foundry, PAWS, Visual Basic 6.0, and Agilent VEE Pro. A Standard Commands for Programmable Instrumentation (SCPI) command set is also supported, allowing programming using raw ASCII commands. Finally, Magna-Power's RIS Panel software is provided allowing for a virtual control panel controlling the power supply via any of the available communication interfaces.


There are hundreds of possible configurations for the SL Series product. Using the following ordering guide and models chart to define the best model for your application. Need more power? Visit our XR Series product line.

Model Ordering Guide

Models Chart

The following chart details the available standard SL Series models. The Current Maximum (Adc) column is separated by the available power levels. To determine the appropriate model, first select your output Voltage Maximum (Vdc) to find appropriate row. Next, select one desired Current Maximum from the row that contains your desired Voltage Maximum. Then, construct your model number according to the model ordering guide, above. Non-standard voltage and current configurations are available.

  1.5 kW 2.6 kW 4 kW 6 kW 8 kW    
Voltage Maximum Current Maximum     Ripple (mVrms) Efficiency (%)
5 250 N/A N/A N/A N/A 50 86
10 150 250 N/A N/A N/A 40 86
16 93 162 250 N/A N/A 35 86
20 75 130 200 250 N/A 40 86
25 60 104 160 240 N/A 40 86
32 46 81 125 186 250 40 86
40 37 65 100 150 200 40 87
50 30 52 80 120 160 50 87
60 25 43 66 100 133 60 87
80 18 32 50 75 100 60 87
100 15 26 40 60 80 60 87
125 12 20 32 48 64 100 87
160 9 16 25 36 50 120 87
200 7.5 13 20 30 40 125 87
250 6 10.4 16 24 32 130 88
300 5 8.6 13.2 20 26.4 160 88
375 4 6.9 10.4 16 21.3 170 88
400 3.7 6.5 10 15 20 180 88
500 3 5.2 8 12 16 220 88
600 2.5 4.3 6.4 10 13.3 250 88
800 1.8 3.2 5.0 7.5 10 300 88
1000 1.5 2.6 4.0 6.0 8.0 350 88
  Input Current Per Phase (Aac)        
UI (85 - 265 Vac, 1Φ) 21 - 7 N/A N/A N/A N/A    
208/240 Vac, 3Φ 6 11 16 24 32    
380/415 Vac, 3Φ 5 8 11 16 19    
440/480 Vac, 3Φ 4 6 9 14 17    


Input Specifications
Nominal Voltage
1 phase, 2 wire + ground
(Available on 1.5 kW Models Only)
85 - 265 Vac, 1Φ (UI—Universal input)
Nominal Voltage
3 phase, 3 wire + ground
(Available on All Models)
208 VAC (operating range 187 - 229 VAC)
240 VAC (operating range 216 - 264 VAC)
380 VAC (operating range 342 - 440 VAC)
415 VAC (operating range 373 - 456 VAC)
440 VAC (operating range 396 - 484 VAC)
480 VAC (operating range 432 - 528 VAC)
Frequency 50 Hz through 400 Hz
Power Factor 0.99 at maximum power for 1Φ units
> 0.82 at maximum power for 3Φ units
Output Specifications
Ripple See Model Charts
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
Efficiency ≥ 86% (See Model Charts)
Stability ± 0.10% for 8 hrs. after 30 min. warmup
Isolation Maximum input voltage to ground: ±2500 Vac
Maximum output voltage to ground: ±1000 Vdc
User inputs and outputs: referenced to earth ground
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%.
With High Slew Rate Option (+HS):
4 ms for an output voltage change from 0 to 63%,
8 ms for an output current change from 0 to 63%.
Bandwidth Standard Models:
3 Hz with remote analog voltage programming,
2 Hz with remote analog current programming.
With High Slew Rate Option (+HS):
60 Hz with remote analog voltage programming,
45 Hz with remote analog current programming.
Physical Specifications
Power Size (H" x W" x D") Rack Units Weight
1.5 kW 1.75" x 19" x 24" (4.44 x 48.3 x 61.0 cm) 1U 32 lbs (14.52 kg)
2.6 kW 1.75" x 19" x 24" (4.44 x 48.3 x 61.0 cm) 1U 34 lbs (15.42 kg)
4 kW 1.75" x 19" x 24" (4.44 x 48.3 x 61.0 cm) 1U 35 lbs (15.88 kg)
6 kW 1.75" x 19" x 24" (4.44 x 48.3 x 61.0 cm) 1U 35 lbs (15.88 kg)
8 kW 1.75" x 19" x 24" (4.44 x 48.3 x 61.0 cm) 1U 36 lbs (16.33 kg)
Control Specifications
Voltage Programming Accuracy ± 0.075% of full scale voltage
OVT Programming Accuracy ± 0.075% of full scale voltage
Current Programming Accuracy ± 0.075% of full scale current
OCT Programming Accuracy ± 0.075% of full scale current
Voltage Readback Accuracy ± 0.2% of full scale voltage
Current Readback Accuracy ± 0.2% of full scale current
External Analog Programming and Monitoring Levels 0 - 10 Vdc
External Analog Output Impedances Voltage output monitoring: 100 Ω
Current output monitoring: 100 Ω
+10 Vdc reference: 1 Ω
External Digital Programming and Monitoring Limits Input: 0 to 5 Vdc, 10 kΩ input impedance
Output: 0 to 5 Vdc, 5 mA drive capacity
Remote Sense Limits 3% maximum voltage drop from output to load
Environmental Specifications
Ambient Operating Temperature 0°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


For maximum flexibility, all front panel function and controls have equivalent programming and monitoring functions on the included rear 37-pin analog-digital I/O connector and on the computer programming interface.

SL Front Panel (Standard)

C Version Front Panel (Optional)

  • 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
  • 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

Front View Dimensions

Rear View Dimensions

Top View Dimensions (Rear Side)

Front panel handles (Removable)
Remote sense connections
Computer and external control connections
Rear air exhaust
Output DC connections
0.25” x 0.75” tin plated copper bus
Qty (2) 3/8-16 threaded insert
Input AC connections
38660 molex input connector
10-32 ground stud
Side air intake
Qty (2) rear metal covers (removable)

Side View Dimensions


The following options are available for the SL Series programmable DC power supply:

CAB1, CAB2, CAB3, CAB4, CAB3x2, CAB4x2

Cabinet and Integration

Installation of Magna-Power products into reliable Hoffman® cabinet, equipped with casters, fixed rails, and cabinet fans integrated with products control circuitry.



DC Power Cabling, Terminated

Utilizing Magna-Power's internal cable manufacturing operations, custom-made DC power cables are offered as an accessory. 



High Slew Rate Output
The high slew rate option is a control modification and replaces the standard output stage with one of low capacitance film and/or aluminum electrolytic capacitors, capable of high RMS currents. This stage provides higher bandwidth with faster output rise and fall times.


IEEE-488 GPIB Interface
Full control of the product's features and diagnostics over a IEEE-488 GPIB interface. The GPIB interface allows up to 15 devices may be connected to one bus and is compatible with all Magna-Power provided software and drivers.


LXI TCP/IP Ethernet Interface
Full control of all the product's features and diagnostics over a LXI Class C Certified TCP/IP Ethernet interface. Includes an embedded web server and compatibility with all Magna-Power provided software and drivers.


RS-422 or RS-485 Converter (Accessory)

The RS-232 to RS422 or RS-485 converter is an external industrial accessory to convert the power supply's standard RS-232. Unlike converters which require programming hardware handshaking signals to control RS-485 or RS-422 operation, the +RS485 option provides automatic control.



Universal Interface Device (Accessory)

The 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. The accessory includes the UID47 with integrated circuitry and (2) 6-ft DB37 cables.



USB Edgeport Converter (Accessory)

The +USB Edgeport Converter plugs directly into the product's RS232 port, creating a virtual serial COM port over USB. The converter is tested with the product by Magna-Power at time of production.


How to Buy

For the fastest product and pricing information, please complete the form and the Magna-Power team will address the request immediately.


Magna-Power products are made-to-order with build-times that vary depending on the model's maximum power rating. Current build-time schedules are as follows:

Select 1.5 kW Models

In Stock

All Others Models

4 weeks

Sales Partners

In the USA and Canada, Magna-Power sells it products directly from the factory, with a nationwide network of technical representatives. Magna-Power products are available available worldwide through direct sales offices and authorized distributors. Requests from this form will either be quoted directly or automatically routed to the appropriate sales partner for quote.

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