• PRT series | DC power supply Rackmount | Matsusada Precision
  • PRT series | DC power supply Rackmount | Matsusada Precision

High power DC Power Supply
with Wide Range Output

Capable of three times the previous voltage and current output within the rated output power

  • Max Voltage: 80V to 1500V
  • Max Current: 30A to 510A
  • Max Power: 5kW to 15kW
  • Variable internal resistance function

Three times and wider voltage and current within the rated output power 15 kW

PRT series is a DC power supply equipped with a turbo function, enabling a wide range of voltage/current output three times higher than previous DC power supplies with the same rated output power level. The PRT series all allows flexible voltage and current output within its rated power, and you do not have to search for a power supply with a wider rated voltage and current than necessary. Thus, a single PRT unit can be used for much wider user applications.

In addition to the wide range of output, the PRT series enhanced its general performance of the power supply to achieve overwhelming quality, providing a power factor correction circuit with 0.99 power factor, a color display panel having excellent visibility, and adoption of the speedy and excellent precision rotary encoder.

Refer to the PRTM series for a high-capacity DC power supply with PRT series in one rack. PRTM series


  • Equipped with a turbo function to achieve a wide range of output.
  • Expandable output current up to 150kW with parallel connection
  • CV/CC priority setting function enables suppression of overshoot by setting the voltage/current rise sequence with the output ON
  • Variable internal resistance function enables simple simulation of rechargeable batteries
  • The sink current suppression reduces the reverse current flowing from the load to the unit in order to prevent a voltage drop on the load as the output is OFF or the set voltage is lowered.
  • Low-noise switching method ideal for research & development

More Space Saving for Better Workplace

Introducing the extremely compact PRTM makes more effective use of your work space. We have developed the smaller regeneration DC power supply for space saving aimed at installing other measuring tools, which makes effective use of the space at workplace.
More Space Saving for Better Workplace

How to compact

State-of-the-art semiconductor
In order to minimize the heat generation itself inside the power supply, we adopted the latest device including semiconductor elements of high efficiency via thorough examination. This enables the product to provide such a sufficient cooling function to maximize the high performance.
Air-through Circuit Block Technology
Following the structure review of the circuit block, the product has been made smaller, and we also have put more focus on the improvement of block arrangement contributing to excellent space efficiency by extremely reducing the dead space. Consequently, we achieved the significant development of high-density mounting technology. While extra spaces inside the device had been required to release the heat so far, we successfully made the product even smaller to ensure the total amount of height of a mere 133 mm.
How to compact


Electric Vehicles (EV), Hybrid electric Vehicles (HEV), Vehicle-mounted Equipment, and Drones
Evaluation testing of inverters, compressors, DC/DC converters, DC motors, power relays, fuse’s testing, harnesses, etc.
Power semiconductors
Semiconductor lasers, SiC, GaN, IGBT, and MOSFET
Rechargeable Batteries
Charge/discharge cycle testing of rechargeable batteries such as lithium ion, nickel metal hydride, and lead-acid batteries
Photovoltaic Cells
Evaluation testing of power conditioners, junction boxes, etc.
Chemistry (Renewable energy development, Carbon dioxide absorption)
Electrochemistry (Various types of electrolysis and electrolytic synthesis such as hydrogen generation)


Model Maximum output Ripple (rms)
Voltage Current Power Voltage Current
PRT80V170A5kW 80 V 170 A 5 kW 25 mV 120 mA
PRT80V340A10kW 340 A 10 kW 180 mA
PRT80V510A15kW 510 A 15 kW 240 mA
PRT200V70A5kW Coming soon 200 V 70 A 5 kW 40 mV 80 mA
PRT300V50A5kW 300 V 50 A 5 kW 40 mA
PRT300V100A10kW 100 A 10 kW 60 mA
PRT300V150A15kW 150 A 15 kW 90 mA
PRT500V33A5kW 500 V 33 A 5 kW 70 mV 16 mA
PRT500V66A10kW 66 A 10 kW 32 mA
PRT500V100A15kW 100 A 15 kW 48 mA
PRT850V53A15kW 850 V 53 A 15 kW 200 mV 48 mA
PRT1500V30A15kW 1500 V 30 A 15 kW 350 mV 26 mA

Output Range Graphs

With the turbo function, wide range of voltage and current output compared to conventional DC power supplies.

Output Range Graphs 80v | Matsusada Precision
Output Range Graphs 200v | Matsusada Precision
Output Range
                            Graphs 300v | Matsusada Precision
Output Range Graphs 500v | Matsusada Precision
Output Range Graphs 850v | Matsusada Precision
Output Range Graphs 1500v | Matsusada Precision


Expandable to 150kW with Master/Slave Control

Easy expansion of your choice up to 150kW

Within the same series, you can increase the capacity using the share cable and parallel control cable (LAN cable).
Even if you want to change testing items or targets, you have only to add the necessary amount.
("Master/Slave Control Cable", a Matsusada original set of pre-processed share cable and parallel control cable is available.)
<Example> (1) 10 units in parallel of PRT80V510A in 15 kW → 80 V/5100 A/150 kW (2) 10 units in parallel of PRT1500V30A in 15 kW → 1500 V/300 A/150 kW

  • Expandable to a total of 10 Master and Slave units.
  • In Master/Slave connection, the values of output voltage/current for the whole unit are shown on the output voltage/current meter of the Master. (However, each Slave unit does not display the individual output values on the output voltage/current meter.)

Note: Make sure to use the same length of all the cables to connect between each load and the main unit.

[Sample Connection]

Matsusada Precision Connection Diagram with MASTER/SLAVE

Master/Slave control cable for PRT series is available as an optional accessory. Go to Master/slave control cable.

Application Operations with Front USB Port

Matsusada Precision 2 application operations with the front USB terminal
No data logger or no always connected a computer required
Shortening time of wiring and preparation, Suited for cycle tests in areas where computers are prohibited.
Features:Built-in data logging
Data logging captures the output data at the fastest interval of 0.1 seconds by inserting the USB memory stick. Also, with the dedicated software MLV, the log data is available in CSV format to output.
Use in places where you cannot always connect a computer
With the dedicated software MSS, you can save the sequence program data to the USB memory and load from the front USB port. Thus, the program operation is available by the power supply only.

Functions with Front USB Port and Standard Attached Software

(1) Sequence program function: MSS (Matsusada Sequence Software)

Easy to use for beginners
MSS allows you to create sequence program data using the main unit or a computer with the dedicated software (MSS).
The software makes it easier and more convenient to create sequence program data. The created sequence program data can be saved to USB memory, and up to 1,024 steps of the sequence program can be loaded.
Matsusada Precision Sequence function: MSS (Matsusada Sequence Software)

(2) Operation log display: MLV (Matsusada Log Viewer) Operation log

Matsusada Precision (2) Operation log display: MLV (Matsusada Log Viewer) Operation log
Instant graphing of operation logs
Operation log display function: MLV, the dedicated software can read and graph the operation log.
Logging to USB memory is available not only during the sequence operation as described in (1) above, but also during the local/external control.
Easy editing of operation logs
MLV can select items you need and save them in CSV format, so you can also edit the data in spreadsheet software with no problem.

[Display items]

  • Elapsed time
  • CC/CV mode
  • Output value (voltage, current, and power)
  • Status
  • Other information on errors, etc.

Large Color Touch Panel

PRT/PRTM series comes with the large color touch panel, realizing its operability and visibility improvement.

Matsusada Precision Large Color Touch Panel
  • Easy setting of output voltage, current, power and other parameters !
  • Simple setting to complex sequence program !
  • New feature with more selectable error detections !
  • Equally available in conventional configuration with the setting dial

Sequence Programming Function

The sequence programming function allows programming of parameters such as step time, step amplitude, ramp, CV/CC mode, sequence program end-setting, step jump, and jump count by simply operating on the front panel. This option enables you to generate customized original waveforms, and you can use a great variety of applications including testing evaluation, and verification.

Program as Image
Matsusada Precision Program as Image
  • Step setting time 0.0 to 3,600 s
  • For one program, a maximum of 1,024 steps can be configured and saved.
  • CV/CC mode can be set for each program.
  • Repetition frequency: infinity, or 1 to 999 Program as Image

CV/CC Priority Setting Function

CV (constant voltage) priority/CC (constant current) priority mode can be selected and set. As is the case with diodes, a load tends to suddenly change the resistance at certain points. When the device is started in CV mode, the current will be momentary overshot. In PRT series, select the CC priority mode to suppress the occurrence of overshoot. The function can reduce the risk of damaging expensive loads such as high-power laser diodes.

CV priority mode Matsusada Precision CV priority mode
CC priority mode Matsusada Precision CC priority mode

* In the CC priority mode, not by releasing the voltage setting and set the CC value to the lowest within the range where the CC state can be maintained.

Internal Resistance Variation Function (in CV mode)

Set the internal resistance to any value to generate a voltage drop when the load current flows.
Batteries, photovoltaic cells, and fuel cells can be simulated.
(The setting range of the internal resistance value is from 0 Ω to the rated voltage/rated current.)

Matsusada Precision Internal Resistance Variation Function (in CV mode)

Preset Memory Function

With the preset memory function, the preset values are automatically saved when the power turns off.
Furthermore, up to three different voltage, current, and power settings are also memorized respectively.

Sink current prevention function

The function is suitable for supplying power to loads with capacities like batteries and capacitors. It reduces the reverse current flowing from the load to the unit in order to prevent a voltage drop on the load as the output is OFF or the set voltage is lowered.

Matsusada Precision Sink current prevention

Note: Reverse current cannot be controlled and stabilized. In order to protect the power supply unit, connect a dummy resistor or reverse current prevention diode if the load of the reverse voltage is equal to or higher than the rated voltage (inductive loads, regenerative motors, etc.).

Two-mode Lock Function

The locking is selectable from two setting modes: one is "Full LOCK" to lock all front panel operations, and the other is "Normal LOCK" to lock all operations except the ON/OFF switch. The function is so user-friendly that the "Full LOCK" mode is provided to ensure the prevention of erroneous operation, and the "Normal LOCK" function facilitates the emergency stop while preventing erroneous operation. Emergency stop operation using the POWER ON/OFF switch is possible in either mode.
Matsusada Precision Full LOCK

Password Function New

In this function, to cancel the two-mode lock function, input a 4-digit PIN code. (Enable/Disable is selectable.)
Matsusada Precision Normal LOCK

Secure analog input/output control

The external analog input/output control of voltage/current/power is isolated from the power of the power supply as standard.
When controlling/monitoring multiple power supplies, you can use the product more securely as the external analog input/output control has a chassis (ground) potential.
  • Output control
  • Remote switch
  • Remote/Local mode setting
  • Output monitor
  • Door switch
  • Status output

Residual voltage detection LED

Use for checking residual voltage
The LED on the rear panel blinks when there is voltage remaining on the DC output terminal in output or at output off. it is useful for reference to check if the voltage remains. Be sure to check the voltage before the operation of the unit.
Residual voltage detection LED | Matsusada Precision


For details, download the datasheet below.


-LCa: CAN interface board *
Using CAN communications, output controlling and operation status monitoring of these devices can be performed.
-LGob: Optical interface board *
  • -LGob: Optical interface board + optical cable 2 meters
  • -LGob(Fc5): Optical interface board + optical cable 5 meters
  • -LGob(Fc10): Optical interface board + optical cable 10 meters
  • -LGob(Fc20): Optical interface board + optical cable 20 meters
  • -LGob(Fc40): Optical interface board + optical cable 40 meters

The unit is remotely controlled by isolating with optical communication. As complete isolation is provided by means of optical fiber, this enables advance prevention of erroneous operation involved with transient phenomenon caused by surges, inductive lightning, external noise, etc.

The optical communication adapter at the control side should be purchased separately.
-LRs: RS-232C/RS-485 interface board *
Using RS-232C/RS-485 communications, output controlling and operation status monitoring of the devices can be provided.
-L (400V): Rated input for three-phase 380 Vac to 440 Vac 3 x 28 A (@400 V)
It has the system power supply voltage of 400 Vac, three-phase, 50 Hz/60 Hz.
The option is available only for PRT500V/100A and PRT850V/53A.

* Selecting each individual option simultaneously in -LCa, -LGob, and -LRs is not allowed.

How to Order

When ordering, add Option No. to Model No. in alphabetical order followed by the input voltage.

Example: PRT80V510A15kW-LGob (Fc10), PRT850V53A15kW-LCa(400V)


AC input cable

[Sold separately] CABLE TYPE14 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 600 V / 58 A 10 meters
[Sold separately]
200 Vac to 240 Vac single-phase inut
CABLE TYPE15 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 600 V / 58 A 10 meters
[Sold separately]
380 Vac to 440 Vac three phase inut
CABLE TYPE16 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 600 V / 58 A 10 meters
[Sold separately]
200 Vac to 240 Vac single phase
CABLE TYPE17 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 250 V / 33 A 10 meters

In accordance with the local electrical code, there might be a possibility that a breaker is required between the main unit and the power supply system. If the PRT series will be used in Europe, be sure to contact our sales representatives.

Master/Slave control cable

  • Model Name: PRT-MS  cable

The cable is a combination of share cable with terminals (figure at right) and parallel control cable . The length of each cable from the terminal to the terminal is approximately 1.5 meters. Therefore, when connecting two PRT, the length is about 1.5 meters, and when connecting three PRKT, the length is about 3 meters.
When placing an order, please put a number from 2 to 10 in.
If two units of PRT series are to be connected as master/slave, please enter 2, and if ten PRT are to be connected at master/slave control, please enter 10.

Model example

<Example> PRT-MS2cable

<e.g.> The cable for connecting 3 PRT

the picture of cable for connectiong 3 PRT


For details, download the datasheet below.


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