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

High Power DC Power Supply

  • Max Voltage: 1500V
  • Max Current: 4080A
  • Max Power: 120kW
  • Space saving

High power up to 120kW in a slim rack

PRTM series, a high capacity DC power supply comes with PRT series models in one rack, offering at least three times the output range more than the previous ones.

The DC power supply employs a total current display and also provides elaborated protections as standard equipment. Accordingly, it provides strong supports especially for customers' research and development requiring high current and high power.

PRTM series, Only 19.3-inch wide

Refer to PRT series as for base model details. PRT series


  • Equipped with a turbo function to achieve a wide range of output.
  • 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 methodideal for research & development

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 the 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

More Space Saving for Better Workplace

Introducing the extremely compact PBTM 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


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 (Solar inverter), junction boxes, etc.
Chemistry (Renewable energy development, Carbon dioxide absorption)
Electrochemistry (Various types of electrolysis and electrolytic synthesis such as hydrogen generation)


We offer more models other than the models with the output bands below, so feel free to contact our sales representatives for details.

Model Maximum output Power supplies installed [units]
Voltage [V] Current [A] Power [kW] *
PRTM80V1020A30kW 80 1020 30 2
PRTM80V1530A45kW 80 1530 45 3
PRTM80V2040A60kW 80 2040 60 4
PRTM80V2550A75kW 80 2550 75 5
PRTM80V3060A90kW 80 3060 90 6
PRTM80V3570A105kW 80 3570 105 7
PRTM80V4080A120kW 80 4080 120 8
PRTM300V300A30kW 300 300 30 2
PRTM300V450A45kW 300 450 45 3
PRTM300V600A60kW 300 600 60 4
PRTM300V750A75kW 300 750 75 5
PRTM300V900A90kW 300 900 90 6
PRTM300V1050A105kW 300 1050 105 7
PRTM300V1200A120kW 300 1200 120 8
PRTM500V200A30kW 500 200 30 2
PRTM500V300A45kW 500 300 45 3
PRTM500V400A60kW 500 400 60 4
PRTM500V500A75kW 500 500 75 5
PRTM500V600A90kW 500 600 90 6
PRTM500V700A105kW 500 700 105 7
PRTM500V800A120kW 500 800 120 8
PRTM850V106A30kW 850 106 30 2
PRTM850V159A45kW 850 159 45 3
PRTM850V212A60kW 850 212 60 4
PRTM850V265A75kW 850 265 75 5
PRTM850V318A90kW 850 318 90 6
PRTM850V371A105kW 850 371 105 7
PRTM850V424A120kW 850 424 120 8
PRTM1500V60A30kW 1500 60 30 2
PRTM1500V90A45kW 1500 90 45 3
PRTM1500V120A60kW 1500 120 60 4
PRTM1500V150A75kW 1500 150 75 5
PRTM1500V180A90kW 1500 180 90 6
PRTM1500V210A105kW 1500 210 105 7
PRTM1500V240A120kW 1500 240 120 8
  • The operation confirmation has been conducted in each power supply unit alone beforehand. Once the power supply units are installed, no operation of the rated output is checked.

Output Range Graphs

Turbo function enables a wide range of voltage and current output compared to previous DC power supplies.

Output Range Graphs


2 application operations with the front USB terminal

Matsusada Precision 2 application operations with the front USB terminal

No need for always connected to a computer.
Programmable output sequences and operation log acquisition are available in places where a computer cannot be permanently installed!

You can create sequence program data using not only the main unit but also a computer with the dedicated software. Using the dedicated software, the created sequence program data can be saved to an USB memory and loaded from the front USB port.

(1) Sequence programming 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 program 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 program 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 Screen

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

Matsusada Precision Large Color Touch Panel screen
  • 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 program Function

The sequence program 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 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. In the PRT/PRTM 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

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 operation, 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.

Emergency stop operation using the POWER ON/OFF switch is available in either mode.


Matsusada Precision Full LOCK

All switches including the touch panel and encoder are locked except LOCK release. It is further effective to prevent the erroneous stop during the remote control and to completely avoid erroneous operation.

Normal LOCK

Matsusada Precision Normal LOCK

Switches the touch panel, and encoder are locked other than ON/OFF. It is further effective to prevent the erroneous changes of output values during the local control and to facilitate emergency stops.

Unlocking password function New function

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

With the function, the following troubles can be prevented.

  • As the output was accidentally turned off during a long aging test, all the data was deleted.
  • Output condition was changed due to erroneous operation during burn-in tests of the shipping inspection line, resulting in damage of the test objects.
PASSWORD code input screen Matsusada Precision PASSWORD code input screen
PIN code input screen Matsusada Precision PIN code input screen


For details, download the datasheet below.


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

-LBr: Protective breaker

One protective breaker is mounted for each rack.

Models of the maximum output voltage 500V and 850V are applicable for the option.

-LCa: CAN interface board *

Using CAN communications, output controlling and operation status monitoring of these devices can be performed.

-LEb: Eye bolts

Four eyebolts mounted to the top side allow you to move the product using cranes.

-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.

  • for LAN: CO-E32
  • for USB: USB-OPT
  • for RS-232C: CO-OPT2-25, CO-OPT2-9
  • for RS-485: CO-OPT4-25
  • for GPIB: CO-G32

-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.

How to Order

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


Anchors: Material Stainless steel plates(in pairs)

Model number: RAC-AMF

[Unit: inch (mm)]

Anchors: Material Stainless steel plates(in pairs)
Numbers can be used
2 pcs (pair)


For details, download the datasheet below.


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