HIGH POWER AND PROGRAMMABLE AC POWER SOURCE
Compact design and multifunction AC power source
-
AC:
0 to 150V/0 to 300V
1Hz to 550Hz -
DC:
0 to +212V/ 0 to -212V
0 to +424V/ 0 to -424V - Original switching method
- Cut-off and Limiting function
High-quality AC output comparable to that of linear amplifier systems, achieved through our proprietary switching method
DRK series are versatile, well-regulated AC power sources realized compact size fitting into a 19-inch rack size of 4U, even though a high power model of 4 kVA.
We have succeeded in downsizing, weight saving, and efficiency improving large and heavy traditional AC power sources realizing high-quality output equivalent to ones of linear amplifier system by adopting our proprietary switching amplifier system.
Their compact design, versatile functions, and reliable operation make them ideal for development and production line inspection.
APPLICATIONS
- For inspection line
- Testing of various AC input devices
- For tests and experiment
- AC and DC output power supply
The models applicable to test for the simplified momentary power interruption are available. Please contact the nearest our sales office for details.
FEATURES AND BENEFITS
- Original switching method for high-quality output
- Cutoff and limiting functions useful for testing AC input operation
- Single-phase and three-phase models are available
Models
| Model | Output Wiring Connection |
Maximum output power | AC output Maximum current [Arms]/Peak current [Apeak] Crest factor=4 |
DC output Maximum output peak current |
|||
|---|---|---|---|---|---|---|---|
| AC | DC | Lo range @100 Vac |
Hi range @200 Vac |
Lo range (0～+212 V/-212 V) |
Hi range (0～+424 V/-424 V) |
||
| DRK500 | 1-Phase | 500 VA | 325 W | 5 A/20 A | 2.5 A/10 A | 2.3 A | 1.2 A |
| DRK1.2k | 1.2 kVA | 780 W | 12 A/48 A | 6 A/24 A | 5.4 A | 2.7 A | |
| DRK1.5k | 1.5 kVA | 975 W | 15 A/60 A | 7.5 A/30 A | 6.8 A | 3.4 A | |
| DRK2k | 2 kVA | 1300 W | 20 A/80 A | 10 A/40 A | 9 A | 4.5 A | |
| DRK4k | 4 kVA | - | 40 A/160 A | 20 A/80 A | - | - | |
| Model ※ | Output Wiring Connection |
Maximum output power | Total Q'ty |
AC output Maximum current [Arms]/Peak current [Apeak] Crest factor=4 |
|
|---|---|---|---|---|---|
| AC | Lo range @100 Vac |
Hi range @200 Vac |
|||
| DRK2k-LMsm/-LMss | 1-phase | 4 kVA | 2 | 40 A/160 A | 20 A/80 A |
| DRK2k-LMsm/-LMss × 2-unit | 6 kVA | 3 | 60 A/240 A | 30 A/120 A | |
| DRK2k-LMsm/-LMss × 3-unit | 8 kVA | 4 | 80 A/320 A | 40 A/160 A | |
| DRK500-L1p3wm/-L1p3ws | 1-phase 3-wire |
1 kVA | 2 | 5 A/20 A | 2.5 A/10 A |
| DRK1.2k-L1p3wm/-L1p3ws | 2.4 kVA | 12 A/48 A | 6 A/24 A | ||
| DRK1.5k-L1p3wm/-L1p3ws | 3 kVA | 15 A/60 A | 7.5 A/30 A | ||
| DRK2k-L1p3wm/-L1p3ws | 4 kVA | 20 A/80 A | 10 A/40 A | ||
※ Optional models, Please refer to page 6 for details of OPTION
| Model ※ | Output Wiring Connection |
Maximum output power |
Total Q'ty |
AC output Maximum current [Arms]/Peak current [Apeak] Crest factor=4 |
|||||
|---|---|---|---|---|---|---|---|---|---|
| AC | Line voltage | 200 Vac | 220 Vac | 230 Vac | 240 Vac | 400 Vac | |||
| Phase voltage | 115.5 Vac | 127.0 Vac | 132.8 Vac | 138.6 Vac | 230.9 Vac | ||||
| Range | Low | Low | Low | Low | High | ||||
| DRK500-LPhu/-LPhv/-LPhw | 3-phase | 1.5 kVA | 3 | 1.5 k | 4.3 A/17.3 A | 3.9 A/15.7 A | 3.7 A/15.0 A | 3.6 A/14.4 A | 2.1 A/8.6 A |
| DRK1.2k-LPhu/-LPhv/-LPhw | 3.6 kVA | 3.6 k | 10.3 A/41.5 A | 9.4 A/37.7 A | 9.0 A/36.1 A | 8.6 A/34.6 A | 5.1 A/20.7 A | ||
| DRK1.5k-LPhu/-LPhv/-LPhw | 4.5 kVA | 4.5 k | 12.9 A/51.9 A | 11.8 A/47.2 A | 11.2 A/45.1 A | 10.8 A/43.3 A | 6.4 A/25.9 A | ||
| DRK2k-LPhu/-LPhv/-LPhw | 6 kVA | 6 k | 17.3 A/69.2 A | 15.7 A/62.9 A | 15.0 A/60.2 A | 14.4 A/57.7 A | 8.6 A/34.6 A | ||
※ Optional models, Please refer to page 6 for details of OPTION
Peak Current
These AC power sources can deliver peak currents
corresponding to a crest factor of up to 4,
making them suitable for capacitive loads.
NOTE
DRK series are not applicable to such application that electric power is infused externally or regeneration behavior is made.
Therefore they are not suitable for such devices that “returning generated electric power to AC line” or “being connected directly to the grid-connected power system”.
Please make AC output in combination with our
high speed four-quadrant bipolar power supplies and such devices.
Functions
New Function Software Calculated Remote Sensing (at -LSn option)
It is possible to calculate differences between the set value of output voltage and the voltage drop in the load end by the resistance of the output line and compensate for it. (Automatic Gain Control)
New Function Cut-Off Function to Protect The Load and Limiting Function to Withstand Inrush Current
There are various kinds of electrical devices that operate with AC voltage, and they may be required to stop immediately when abnormal current flows, or to continue to operate with some overcurrent. DRK series can set such behavior as necessary.
Cut-off function
It stops the AC output safely when abnormal current flows into the load.
Limiting function
The DRK series provides this function, which ensures continuous operation by adjusting the output to within the rated current, even when connected to loads with high inrush currents, such as motors.
Refined and Simplified Operability
The ability to quickly recall commonly used functions or output settings enhances work efficiency. For the application utilized in the same settings, as the latest settings are memorized, it is able to eliminate troublesome re-settings.
In case that several test patterns are repeated (for example, 90 V to 100 V to 110 V, 50 Hz/60 Hz), testing time is shortened very much by using the memory function.
Light, Compact and Space-Saving
Significantly more compact than traditional AC power sources, the DRK series is well suited for factories and laboratories where space is limited.
Standard Functions and a Wide Range of Options
External control is equipped as standard. They are applicable to the automation of production lines immediately as it is able to control remotely output ON/OFF, voltage, frequency, and ranges. And LAN, RS-232C, RS-485, and GPIB are applicable by option.
Remote control
- Output ON/OFF
- Voltage control
- Frequency control
- Switching rang
- Output of fault
- Interlock
- Selection of control REMOTE or LOCAL
Digital Interface Option
- USB
- GPIB
- Optical interface
(LAN, RS-232C, RS-485, GPIB)
Output option
- 3-phase
- Master-slave
- Single-phase 3-wire
Various Output: 3-Phase Output, 1-Phase 3-Wire Output, Master-slave
3-phase output, 1-phase 3-wire output, and master-slave hooking are applicable by options.
Also, they are applicable as a simple power supply by cancellation of option settings.
3-phase output (OPTION)
It is possible to test and evaluate 3-phase AC even where only 1-phase 200 Vac or 100 Vac is available
Single-phase 3-wire output (OPTION)
It is possible to test and evaluate single-phase 3-wire even where only a single phase is available.
Master-slave (OPTION)
When the larger power supply is required, a maximum of 8 kVA is available with the master-slave hooking. (Master unit: one, Slave units: 3)
Specifications
- Input voltage
- 100 to 240 Vac, 50/60 Hz, Single-phase
- Output voltage range (Hi/Lo)
-
[Local] Hi/Lo selectable RANGE switch on the front panel
[Analog remote] Short/Open or TTL (Low/High)
[Digital remote] Command - Output voltage control
-
[Local] VLT switch and rotary encoder on the front panel
[Analog remote] External control voltage 0 to 10 Vdc
[Digital remote] Command - Output frequency control
-
[Local] FRQ switch and rotary encoder on the front panel
[Analog remote] External control voltage 0 to 10 Vdc
[Digital remote] Command
Options
- -LGb *1
-
Built-in GPIB interface (Scheduled for discontinuation in December 2028)
External output ON/OFF, Switching voltage range, Variable voltage, Variable frequency, Status, Monitor for voltage and current
- -LGob *1
-
Optical interface port
Optical communication offers insulation control. It is to prevent malfunctions such as transient phenomena caused by surge, lightning induction, and exogenous noise.
External output ON/OFF, Switching voltage range, Variable voltage, Variable frequency, Status, Monitor for voltage/current, and various interfaces (Please refer to the datasheet digital controller "CO/USB series" about optical conversion for various interfaces, LAN, USB, RS-232C, RS-485, and GPIB.)(Please refer to the datasheet of the digital interface adapter “CO/USB series” for details on optical conversion for various interfaces,
including LAN, USB, RS-232C, RS-485, and GPIB.)- -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
- -LMsm, -LMss *3 *4 *5
-
Parallel connection
It is able to increase output power by paralleling.
It is able to hook maximum three slave units per one master unit in the optional formation. (for AC mode only)
(When the combination is changed, an adjustment in our factory is required.)
Each unit can also be used as a single-phase output AC power source.
- -LN
-
Output state auto-recovery (former: no power failure protection)
The output will automatically be ON with power restored without resetting.
- -LPhu, -LPhv, -LPhw *3 *4 *5
-
Multi-phase connection
3-phase output mode is available.
Each one-unit optioned respectively is required.
Each unit can also be used as a single-phase output AC power source.
- -LSn *2
-
Software calculated remote sensing
Go to Software calculated Remote sensing function.
- -LUs1 *1
-
USB interface port
External output ON/OFF, Switching voltage range, Variable voltage, Variable frequency, Status, Monitor for voltage and current
- -L1p3wm, -L1p3ws *3 *4 *5
-
Single phase 3-wire connection
Single phase 3-wire output mode is available.
Each one-unit optioned respectively is required.
Each unit can also be used as a single-phase output AC power source.
The momentary power interruption test function is available separately. Please consult our sales staff for details.
- These options should be selected either one.
- This option cannot be installed together with options for single phase 3-wire connection (-L1p3wm, -L1p3ws) or options for (-LPhu, -LPhv, -LPhw).
- DRK4k is not available.
- (-L1p3wm or –L1p3ws), (-LPhu, -LPhv or -LPhw), and (-LMsm or -LMss), these options are should be selected either one. An option is required for each power supply.
- When interface options (-LUS1, -LGb and -LGob) is applied, only the master unit (-L1p3wm, -LPhu or -LMsm) should be optioned. No option is required on slave units.
How to Order
When ordering, add Option No. in the following order by alphabet, and input voltage to Model No.
Example: DRK2k-LGob(Fc5)MsmNSn, DRK2k-LFNUs11p3wm
Additional Acccessories
Input Cable for Single Phase AC (3 cores type)
| Sold separately [Input voltage 200 V] |
CABLE TYPE5 |
|
|
Rated voltage 300 V Maximun current 25 A |
2.5 meters |
|---|---|---|---|---|---|
| Sold separately [Input voltage 100 V] |
CABLE TYPE2 |
|
|
Rated voltage 125 V Maximun current 15 A |
2.5 meters Fixed length |
| Sold separately [Input voltage 200 V] |
CABLE TYPE5 |
|
|
Rated voltage 300 V Maximun current 25 A |
2.5 meters |
|---|---|---|---|---|---|
| Sold separately [Input voltage 100 V] |
CABLE TYPE5 |
|
|
Rated voltage 300 V Maximun current 25 A |
2.5 meters |
| Sold separately [Input voltage 200 V] |
CABLE TYPE5 |
|
|
Rated voltage 300 V Maximun current 25 A |
2.5 meters |
|---|---|---|---|---|---|
| Sold separately [Input voltage 100 V] |
CABLE TYPE11 |
|
|
Rated voltage 600 V Maximun current 30 A |
2.5 meters |
| Sold separately [Input voltage 200 V] |
CABLE TYPE11 |
|
|
Rated voltage 600 V Maximun current 30 A |
2.5 meters |
|---|---|---|---|---|---|
| Sold separately [Input voltage 100 V] |
CABLE TYPE12 |
|
|
Rated voltage 600 V Maximun current 60 A |
2.5 meters |
- Application software
-
PSS2en series: Remote control, Test workflow design, and Data logging
Click here for the PSS2en seriesPSS2en is the dedicated software that can actuate various power supplies, electronic loads, and digital controllers for power supplies manufactured by Matsusada Precision Inc. with a simple setup.
It is perfect for the aging test, the burn-in test, and the withstand voltage test for electronic parts, as well as for the endurance test, intermittent/continuous operation test, or various simulation tests for automobile electric components.
Dimensions
Download
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-
DRK series Datasheet
Date: 2025-10-27 Rev 18
PDF (2,449 KB)
-
Programmable AC Power Source Selection Guide
Date: 2025-11-11 rev 06
PDF (3,236 KB)
-
DRK series Basic Instruction Manual (DRK500, DRK1.2k, DRK1.5k and DRK2k)
Date: 2020-09-02 rev0.0
PDF (436 KB)
-
DRK series Basic Instruction Manual (DRK4k)
Date: 2020-08-18 rev0.0
PDF (451 KB)
-
DRK series Instruction Manual (DRK500, DRK1.2k, DRK1.5k and DRK2k)
Date: 2025-06-30 rev 1.23
PDF (1,727 KB)
-
DRK series Instruction Manual (DRK4k)
Date: 2022-6-13 rev1.3
PDF (1,578 KB)
-
DRK series USB Driver
Date: 2025-01-22 rev 1.7.6
ZIP (6,504 KB)
-
DRK series (-LGob option model) Outline Drawing (DXF, PDF)
Date: 2025-01-23
ZIP (276 KB)
Login Required
-
DRK series Datasheet
Date: 2025-10-27 Rev 18
PDF (2,449 KB)
-
Programmable AC Power Source Selection Guide
Date: 2025-11-11 rev 06
PDF (3,236 KB)
-
DRK series Basic Instruction Manual (DRK500, DRK1.2k, DRK1.5k and DRK2k)
Date: 2020-09-02 rev0.0
PDF (436 KB)
-
DRK series Basic Instruction Manual (DRK4k)
Date: 2020-08-18 rev0.0
PDF (451 KB)
-
DRK series Instruction Manual (DRK500, DRK1.2k, DRK1.5k and DRK2k)
Date: 2025-06-30 rev 1.23
PDF (1,727 KB)
-
DRK series Instruction Manual (DRK4k)
Date: 2022-6-13 rev1.3
PDF (1,578 KB)
-
DRK series USB Driver
Date: 2025-01-22 rev 1.7.6
ZIP (6,504 KB)
-
DRK series (-LGob option model) Outline Drawing (DXF, PDF)
Date: 2025-01-23
ZIP (276 KB)
On this website, we provide only the latest versions of information and instruction manuals for our products. Therefore, the newest versions of manuals on the website may differ from those that came with products you purchased in the past.
