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  • REK/REKJ series | DC power supply Rackmount | Matsusada Precision
  • REKJ series | DC power supply Rackmount | Matsusada Precision
  • /REKJ series | DC power supply Rackmount | Matsusada Precision
  • REKJ series | DC power supply Rackmount | Matsusada Precision
  • REKJ series | DC power supply Rackmount | Matsusada Precision
  • REK/REKJ series | DC power supply Rackmount | Matsusada Precision
  • REKJ series | DC power supply Rackmount | Matsusada Precision
  • /REKJ series | DC power supply Rackmount | Matsusada Precision
  • REKJ series | DC power supply Rackmount | Matsusada Precision
  • REKJ series | DC power supply Rackmount | Matsusada Precision

HIGH POWER, VERSATILE PROGRAMMABLE DC POWER SUPPLY

  • Voltage range: 6 to 1500V
  • Current: 1.2 to 1200A
  • Power: 0.77 to 15kW
  • Compact and high power
LXI marking (Optional)

"Compact" "High power" "Multi-function" Programmable DC Power Supply with Superior Operability

REK series is a high-power/versatile DC programmable power supply that realizes Max. 2.5 kW by 1U (= 1.73 inches/44 mm) height, Max. 5.5 kW by 2U (= 3.5 inches/89 mm) height, Max.15.3 kW by 3U (= 5.24 inches/133 mm) height.
REK series is designed to achieve an excellent power factor as good as 0.99 *1, its high efficiency helps to reduce environmental burden.
In addition, the series has a digital interface *2 such as LAN and USB as standard equipment and offers flexibility to easily support various automated measurements and large-scale system construction in production equipment.
We also have a lineup of REKJ series (0 to 650 V, 0.77 kW to 0.81 kW) in a half rack size of 8.35 inches/212 mm wide with the similar functions to the REK series. (Optional to LXI compatible, some models to CE compatible)

  1. In single phase input models.
  2. Adaptors or options will be needed additionally.

FEATURES AND BENEFITS

  • Compact and high power 15 kW
  • Ideal for research and development with low noise switching method.
  • PFC (Power Factor Correction) circuit and universal input wound not select the place of operation.
  • Various operations by connecting multiple power supplies, such as master/slave, is possible.
  • REK adopts large 4-digit monitor display for both voltage and current, which contributes to precise monitoring with better recognition.
  • Operability and safety are improved with new features of two mode lock function and acceleration rotary encoder, which accelerate the output ramp up with the speed of rotating the encoder.

Models

  • Half: half-rack width
  • CE marking: CE marking models and correspond to Low Voltage Directive and EMC Directive.
    The model attached -LEt option or -LMi option is out of CE marking acquisition. (Click here to learn more about options.)
    This product is designed to be integrated into the customer's system and to meet the requirements of CE marking under the conditions of chassis mounting, noise suppression, proper protection, and isolation devices. It is not designed to perform alone.
    PVCE series has CE-certified models. For more information, contact our sales representatives.
Model Maximum Output
Voltage Current Power
HalfREKJ6-130 6 V 130 A 0.78 kW
REK6-200 200 A 1.2 kW
REK6-220 220 A 1.3 kW
REK6-310 310 A 1.9 kW
REK6-530 530 A 3.2 kW
REK8-180 8 V 180 A 1.44 kW
REK8-300 300 A 2.4 kW
REK8-600 600 A 4.8 kW
REK8-1000 1000 A 8 kW
HalfREKJ10-80 10 V 80 A 0.8 kW
REK10-150 150 A 1.5 kW
REK10-200 200 A 2 kW
REK10-240 240 A 2.4 kW
REK10-340 340 A 3.4 kW
REK10-510 510 A 5.1 kW
REK10-1000 1000 A 10 kW
REK10-1200 1200 A 12 kW
HalfREKJ15-54 15 V 54 A 0.81 kW
REK15-100 100 A 1.5 kW
REK15-160 160 A 2.4 kW
REK15-227 227 A 3.4 kW
REK15-340 340 A 5.1 kW
REK15-800 * 800 A 12 kW
REK16-320 16 V 320 A 5.12 kW
REK18-290 18 V 290 A 5.22 kW
HalfREKJ20-40 20 V 40 A 0.8 kW
REK20-80 80 A 1.6 kW
REK20-125 125 A 2.5 kW
REK20-170 170 A 3.4 kW
REK20-200 200 A 4 kW
REK20-260 260 A 5.2 kW
REK20-420 420 A 8.4 kW
REK20-500 500 A 10 kW
REK20-600 600 A 12 kW
REK25-200 25 V 200 A 5 kW
HalfREKJ30-27 30 V 27 A 0.81 kW
REK30-53 53 A 1.6 kW
REK30-84 84 A 2.5 kW
REK30-115 115 A 3.5 kW
REK30-180 180 A 5.4 kW
REK30-240 240 A 7.2 kW
REK30-280 280 A 8.4 kW
REK30-333 333 A 10 kW
REK30-400 400 A 12 kW
REK35-45 35 V 45 A 1.6 kW
REK35-50 50 A 1.75 kW
REK35-72 72 A 2.5 kW
REK35-100 100 A 3.5 kW
REK35-155 155 A 5.4 kW
HalfREKJ36-22 36 V 22 A 0.79 kW
HalfREKJ40-20 40 V 20 A 0.8 kW
REK40-40 40 A 1.6 kW
REK40-60 60 A 2.4 kW
REK40-75 75 A 3 kW
REK40-85 85 A 3.4 kW
REK40-210 210 A 8.4 kW
REK40-250 250 A 10 kW
REK40-300 300 A 12 kW
HalfREKJ45-18 45 V 18 A 0.81 kW
REK45-35 35 A 1.6 kW
REK45-55 55 A 2.5 kW
REK45-78 78 A 3.5 kW
REK45-120 120 A 5.4 kW
REK54-100 54 V 100 A 5.4 kW
HalfREKJ60-13.5 60 V 13.5 A 0.81 kW
REK60-26 26 A 1.6 kW
REK60-30 30 A 1.8 kW
REK60-42 42 A 2.5 kW
REK60-60 60 A 3.6 kW
REK60-90 90 A 5.4 kW
REK60-140 140 A 8.4 kW
REK60-170 170 A 10.2 kW
REK60-200 200 A 12 kW
REK60-250 250 A 15 kW
REK70-30 70 V 30 A 2.1 kW
REK75-36 75 V 36 A 2.7 kW
HalfREKJ80-10 80 V 10 A 0.8 kW
REK80-20 20 A 1.6 kW
REK80-31 31 A 2.5 kW
REK80-45 45 A 3.6 kW
REK80-68 68 A 5.4 kW
REK80-110 110 A 8.8 kW
REK80-130 130 A 10.4 kW
REK80-190 190 A 15.2 kW
REK90-20 90 V 20 A 1.8 kW
REK100-16 100 V 16 A 1.6 kW
REK100-25 25 A 2.5 kW
REK100-36 36 A 3.6 kW
REK100-55 55 A 5.5 kW
REK100-85 85 A 8.5 kW
REK100-100 100 A 10 kW
REK100-150 150 A 15 kW
REK110-20 110 V 20 A 2.2 kW
HalfREKJ120-6.6 120 V 6.6 A 0.792 kW
REK120-13 13 A 1.56 kW
REK120-25 25 A 3 kW
REK125-65 125 V 65 A 8.1 kW
REK125-80 80 A 10 kW
REK125-120 120 A 15 kW
REK130-25 130 V 25 A 3.25 kW
REK150-10 150 V 10 A 1.5 kW
REK150-16.6 16.6 A 2.5 kW
REK150-24 24 A 3.6 kW
REK150-36 36 A 5.4 kW
REK150-55 55 A 8.3 kW
REK150-70 70 A 10.5 kW
REK150-100 100 A 15 kW
HalfREKJ160-5 160 V 5 A 0.8 kW
REK200-8 200 V 8 A 1.6 kW
REK200-12.5 12.5 A 2.5 kW
REK200-18 18 A 3.6 kW
REK200-20 20 A 4 kW
REK200-27 27 A 5.4 kW
REK200-42 42 A 8.4 kW
REK200-52 52 A 10.4 kW
REK200-75 75 A 15 kW
HalfREKJ250-3.2 250 V 3.2 A 0.8 kW
REK250-22 22 A 5.5 kW
REK250-34 34 A 8.5 kW
REK250-42 42 A 10.5 kW
REK250-60 60 A 15 kW
REK270-25 270 V 25 A 6.75 kW
REK300-5.3 300 V 5.3 A 1.6 kW
REK300-8.3 8.3 A 2.5 kW
REK300-12 12 A 3.6 kW
REK300-18 18 A 5.4 kW
REK300-28 28 A 8.4 kW
REK300-35 35 A 10.5 kW
REK300-50 50 A 15 kW
HalfREKJ350-2.2 350 V 2.2 A 0.77 kW
REK400-5 400 V 5 A 2 kW
REK400-22 22 A 8.8 kW
REK400-26 26 A 10.4 kW
REK400-38 38 A 15.2 kW
HalfREKJ500-1.6 500 V 1.6 A 0.8 kW
REK500-3.2 3.2 A 1.6 kW
REK500-5 5 A 2.5 kW
REK500-6 6 A 3 kW
REK500-7 7 A 3.5 kW
REK500-11 11 A 5.5 kW
REK500-17 17 A 8.5 kW
REK500-20 20 A 10 kW
REK500-25 25 A 12.5 kW
REK500-30 30 A 15 kW
REK600-4.1 600 V 4.1 A 2.5 kW
REK600-6 6 A 3.6 kW
REK600-9 9 A 5.4 kW
REK600-14 14 A 8.4 kW
REK600-18 18 A 10.8 kW
REK600-25 25 A 15 kW
HalfREKJ650-1.2 650 V 1.2 A 0.78 kW
REK650-2.5 2.5 A 1.6 kW
REK650-3.8 3.8 A 2.5 kW
REK650-5.5 5.5 A 3.6 kW
REK650-8.5 8.5 A 5.5 kW
REK650-13 13 A 8.5 kW
REK650-16 16 A 10.4 kW
REK650-23 23 A 15 kW
REK850-10 850 V 10 A 8.5 kW
REK850-12 12 A 10.2 kW
REK850-18 * 18 A 15.3 kW
REK1000-15 * 1000 V 15 A 15 kW
REK1500-10 1500 V 10 A 15 kW
Discontinued models

Sales of the following models ended. We continue to support them.

Model Maximum Output End of sales date
Voltage Current Power
Half REKJ800-1 800 V 1 A 0.8 kW End of sales November 19, 2022.
REK600-2.7 600 V 2.7 A 1.6 kW End of sales March 2, 2023

Functions

Sink Current Suppression

When supplying power to loads with capacities like batteries and capacitors, the sink current suppression is used to reduce 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.

Sink Current Suppression | REK/REKJ series | DC power supply Rackmount | Matsusada Precision

NOTE

It is not possible to stabilize the output by controlling the back current. In case of load that has inverse voltage or overrated voltage, such as inductive load or regenerative motor, protect the power supply by adding a dummy resister or diode to prevent back current.

Multi Setting Function

Function to memorize three different voltage and current settings in addition to standard preset function.
No need to adjust the output when different setting, and convenient function for production inspection process or testing which require frequent data taking.

Multi Setting Function | REK/REKJ series | DC power supply Rackmount | Matsusada Precision
Multi Setting Function | REK/REKJ series | DC power supply Rackmount | Matsusada Precision

Two Mode Lock Function

Function to select two different lock modes for two different purposes."Full Lock" locks all the functions on the front panel, and "Normal Lock" locks all the functions except for the ON/OFF switch. "Full Lock" mode shall be good in case mis-operation has to be completely avoided, and "Normal Lock" mode shall be good in case to avoid mis-operation but secure the way for emergency stop of power supply. You can select the best mode according to your level of "Security".
(In both modes, an emergency stop is possible with Power Switch.)

Full LOCK

Full LOCK | REK/REKJ series | DC power supply Rackmount | Matsusada Precision

Lock all the functions other than reset lock mode. This mode is good for purpose. to avoid mis-operation completely

Normal LOCK

Normal LOCK | REK/REKJ series | DC power supply Rackmount | Matsusada Precision

Lock voltage and current setting dial. This mode is good for purpose to avoid changing output settings by mistake or when an easy emergency stop is required.

Delay Trigger Function

In case the -LUs1, -LEt, or -LGob option is selected, only one unit of the REK/REKJ series can be used.

Function to delay the OUTPUT ON/OFF time. It is possible to use in case a single unit of the REK/REKJ series is used, and also when connecting several Matsusada Precision power supplies *1 using master-slave connection terminal*2 and output voltage/output current are set individually, delay trigger function can be used.*3

  1. R4K-36 series, R4K-80 series, RK-80 series, RK series, TB series and RKT series.
    A detailed datasheet for each model is available. Please contact the nearby sales office.
  2. Can be connected up to 16 pieces.
  3. Only for slave-local. In the case of slave remote control, the exact same model of power supply needs to be used. Also, in the case of slave-local, each output voltage and current can be set individually. In the case of slave-remote, output voltage, and current can be set with a one-control function, in which -each slave unit follows the master unit setting.
Delay Trigger Function | REK/REKJ series | DC power supply Rackmount | Matsusada Precision

* t1 to T8 can be set in the range 0.0 to 99.9 s.

Dual Tracking, Multiple Outputs

Dual tracking control, which enables both positive and negative outputs simultaneously in master-slave operation, is possible. Multi outputs and various versatile operations are also possible by combining the above dual tracking control and slave local mode. Positive and negative output (+V, -V) of dual tracking control and set output voltage of slave local mode can be output simultaneously by turning on the master unit.

  • As for dual tracking control, models at output voltage exceeding 250 V are not available with the function.

Dual Tracking

Dual Tracking, Multiple Outputs | REK/REKJ series | DC power supply Rackmount | Matsusada Precision

Multiple Outputs

Multiple Outputs | REK/REKJ series | DC power supply Rackmount | Matsusada Precision

Digital Control Function

Control Function Output ON/OFF setting
Display of various Status (fault/output/OVP/OCP/OTP/ACF/reverse sense connection/interlock)
Digital Control Max. 16 units
(-LGob option models: Max. 32 units)
Package Control Multiple Units Hooked
Write Function Setting Output Voltage/Setting Output Current Percent Mode, Voltage or Current Value Mode
Setting OVP/Setting OCP Percent Mode, Voltage or Current Value Mode
Read Function Measured Output Voltage/Measured Output Current Percent Mode, Voltage or Current Value Mode
Setting Output Voltage/Setting Output Current Percent Mode, Voltage or Current Value Mode
Setting OVP/Setting OCP Percent Mode, Voltage or Current Value Mode

Note: Minimum setting unit for each model is one count of the indicator.

Digital Interface port

This interface is Matsusada Precision's proprietary dedicated digital communication port.
This interface has modular type IN and OUT ports to allow daisy-chain connection.
Combined with an adapter (sold separately). Multiple power supplies can be controlled at once.
Adapters for LAN, USB, RS-232C, RS-485, and GPIB are available so that you can choose a suitable communication interface.

One-control operation by master/slave connection is also possible.

Master/Slave Control | REK/REKJ series | DC power supply Rackmount | Matsusada Precision

(A) Modular cable (CO-M cable)

  • As for 1U and 2U models, this function is not available when the -LGob, -LUs1, or -LEt option is chosen.
  • When a noisy environment is presumed, the following -LGob option (optical interface) is required.

When a noisy environment is presumed, the following -LGob option (optical interface) is required.

External Analog Remote Control

  • External output ON/OFF
    Output can be turned ON/OFF by relay or TTL signal.
    Logic of OUTPUT can be made reverse.
  • Remote sensing Prevents voltage drop-down (VO-VL) due to resistance (R) or deterioration of stability by contact resistance (Max compensation 0.5 V)
  • Remote/Local change
    As for the output voltage control, output current control, overvoltage protection, and overcurrent protection, the remote/local mode can be individually switched by relay or TTL signal.
  • Output control (Voltage, Current, Overvoltage protection, Overcurrent protection)
  • Output monitor (Voltage, Current)
  • Status output

Specifications

For details, download the datasheet below.

Options

* These options cannot be selected together. Only one of each can be selected. Also, please see the CO/USB series datasheet for details of the function of the digital interface.

-LDe

Pulse/Ramp sequence, Master follow function

A. Pulse sequence

Using the stored voltage and current setting in each memory of a, b, and c and multi-set function, sequence operation is possible. The setting of repetition to say nothing of continuous driving can be set. Various different operations, such as repetition of memory a and b or b, c and off, are possible by setting the set time of memory a, b, c, and/or off to be 0.0. Thus, it makes this model suitable for evaluation tests or other applications.

A. Pulse Sequence | REK/REKJ series | DC power supply Rackmount | Matsusada Precision

ta, tb, tc, and toff can be set with range 0.0, 1.0s to 99.9 h respectively.

B. Ramp

This function controls the ramping up and down the voltage and current to the set value (or from set voltage and current value to 0 V/0 A). It is convenient to increase (decrease) the voltage and current value slowly.

  • The Ramp sequence can be selected from [both set voltage and current], [only set voltage], and [only set current].
  • Master follow function cannot be used with -LGob, -LUs1, and -LEt option.
Ramp | REK/REKJ series | DC power supply Rackmount | Matsusada Precision

t1 and t2 can be set with a range of 0 to 999 s respectively.

C. Pulse & Ramp

Pulse and ramp controls can also be combined. In addition, it can be combined with the multi-set function. Therefore, Sequence operation is possible using the voltage and current values set in the "a", "b", and "c" memories. Repeated and continuous operation, as well as the number of times, can be set. The power supply itself alone can be used to slowly and repeatedly increase or decrease voltage and current values up to three set values, making it useful in a variety of applications

Combination of Pulse and Ramp Sequence | REK/REKJ series | DC power supply Rackmount | Matsusada Precision

Range of 0 to 999 s for t1 to t4 and range of 0.0 s,
1.0 s to 99.9 h for ta to tc and toff can be set respectively.

D. Master follow

Master-follow is a function that allows a slave equipment to follow the output status of the master equipment in a master/slave connection. The output status of the master equipment is transmitted to the slave equipment to enable interlocked operation. The master and slave can be set to different modes of operation, allowing for complex testing.

  • The Ramp sequence can be selected from [both set voltage and current], [only set voltage], and [only set current].
  • The master follow function is only available with the standard interface.
Master follow | REK/REKJ series | DC power supply Rackmount | Matsusada Precision

Note: Time accuracy in sequence operation is ±0.5%. Take care when using the product in long-term running operations.

-LEt *

LAN interface port
The option is included in the -LMi option although it can be manufactured. For more information about this option, feel free to contact us.

-LEt optional models do not have CE markings.

-LGob *

Optical interface port

This option changes the standard interfaces to a built-in optical interface port.
By combining this option with an adapter for optical connection (sold separately), communication between the control device and the power supply can be controlled in an isolated state. Be sure to select this option when using the product in the following environments.

  • -LGob: Optical interface port + optical cable 2 meters
  • -LGob(Fc5): Optical interface port + optical cable 5 meters
  • -LGob(Fc10): Optical interface port + optical cable 10 meters
  • -LGob(Fc20): Optical interface port + optical cable 20 meters
  • -LGob(Fc40): Optical interface port + optical cable 40 meters

Select the optional optical interface port (-LGob) when using this DC power supply under the following conditions.

  • Noisy environments such as factories (example: when motors or coils are used near loads or power sources).
  • If this power supply and your controller (PC or PLC) cannot be installed within 2 meters.
  • When there is a possibility of arcing or output short-circuit.
-LMi *

Multi-digital interface port
Digital control by LAN, USB (TMC), and RS-485 (Multidrop) is available. (These simultaneous uses are impossible. And, RS-485 supports only FULL DUPLEX communications.) This option includes the -L(SCPI) option and attaches the IVI driver corresponding to the SCPI command. It makes it easy to control program development with various programming languages such as LabView, VisualBasic and C#, etc.

-LMi optional models do not have CE marking.

-LUs1

USB interface port
The option is included in the -LMi option although it can be manufactured. For more information about this option, feel free to contact us.

-L(Mc0.5), -L(Mc0.15) *

Communication cable extension
The length of CO-M cable will be 0.5 meters long 0.15 meters long. (You can choose only either.)

-L(SCPI)

SCPI command
Enable control via SCPI command.

-L(400V), -L(480V), -L(3P), -L(1P)

Input voltage/phase
For details, download the datasheet below.

These optional models do not have CE marking.

How to Order

When ordering, add Option No. in the following order by alphabet, and input voltage to Model No. Example: REKJ6-130-LDeMi(Mc0.5), REK100-36-LDeGob(Fc20)(1P), REK500-11-LDeMi(400V), (Alphabetical, AC input numeral order)

Accessories

Input cable
REK series
Sold separately
1.2 kW to 2.5 kW model
2.7 kW to 3.6 kW single phase input model
CABLE TYPE5 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 300 V/25 A
For Japan or North America
2.5 meters
Sold separately
1.75 kW to 2.5 kW three-phase input model
2.7 kW to 5.5 kW model
CABLE TYPE6 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 600 V/25 A
For Japan
2.5 meters
Sold separately
6.75 kW to 15.3 kW model
CABLE TYPE7 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 600 V/75 A
For Japan
10 meters
REKJ series
Standard
for 100 V input, 3-pin plug
CABLE TYPE8 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 125 V/125 A
For Japan or North America
2.5 meters
Fixed length
Sold separately
for 200 V input, flying lead
CABLE TYPE3 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 250 V/10 A
For Europe
2.5 meters
Fixed length
Sold separately
for 200 V input, 2-pin plug
CABLE TYPE4 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 250 V/10 A
For Europe
2.5 meters
Fixed length
  • Use an AC cable that is suitable for your usage environment and region.
    Please note that other than AC input cables that correspond to the following are to be prepared by customers.
  • To order 2.5 meters or longer, add the length (meters) to the model No.
    <Example> 5 meters : CABLE TYPE 5 (5)
Optical isolation adapter

To use the optical interface, you need to prepare an optical interface adapter separately. The following interface adapters are available according to your controller port.

  • CO-E32: LAN to optical interface adapter
  • USB-OPT: USB to optical interface adapter
  • CO-OPT2-9: RS-232C (9 pin) to optical interface adapter
  • CO-OPT2-25: RS-232C (25 pin) to optical interface adapter
  • CO-OPT4-25: RS-485 (25 pin) to optical interface adapter
  • CO-G32: GPIB to optical interface adapter (Discontinued in December 2028)
Example of communication with optical fiber
Example of communication with optical fiber | rek series | DC power supply Rackmount | Matsusada Precision

For details, refer to CO/USB series

Digital interface port

To use Matsusada Precision's digital interface, you need to prepare a digital interface adapter separately. The following interface adapters are available according to your controller port.

  • CO-E32m: LAN Adapter
  • CO-U32m: USB Adapter
  • CO-MET2-9: RS-232C (9 pin) Adapter
  • CO-MET2-25: RS-232C (25 pin) Adapter
  • CO-MET4-25: RS-485 (25 pin) Adapter
    (CO-MET2-9/CO-MET2-25/CO-MET4-25: The connector is D-sub type.)
  • CO-G32m: GPIB Adapter (Discontinued in December 2028)
Example of communication with a digital adapter
Example of communication with a digital adapter | rek series | DC power supply Rackmount | Matsusada Precision

For details, refer to CO/USB series

Application software for power supplies and electronic loads

PSS2en series
PSS2en is the dedicated software which can actuate various power supplies, electronic loads and digital controller for power supplies manufactured by Matsusada Precision Inc. with simple set up.
It is the perfect for the aging test, the burn-in test and the withstand voltage test for electronic parts, and for the endurance test, intermittent/continuous operation test or various simulation test for electric component of automobile.
For details, refer to PSS2en page.

PSS2en | Application software for power supplies and electronic loads | Matsusada Precision

Dimension

For details, download the datasheet below.

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