Benchtop
DC Electronic Loads
- Operational Voltage range:
1.5 Vdc to 150 Vdc - Load current: 30 A
- Load power:
150 W, 200 W - World wide input
Compact Design, High Power Performance
The EGD series consists of compact DC electronic loads ideal for battery testing, power supply and converter evaluation, and burn-in testing. Combined with Matsusada Precision's REK or RK series DC power supplies, the EGD series can be easily integrated into charge/discharge systems via LAN, USB, RS-232C, RS-485, or GPIB interfaces.
FEATURES
- Up to five units can be installed in a standard 19-inch rack (3U height). (150 W and 200 W models)
- Supports Constant Current (CC) and Constant Resistance (CR) operating modes.
- Universal AC input supports global voltage standards.
- Master/slave configuration allows simultaneous control of up to 16 units.
APPLICATIONS
- Load for switching power supply testing
- Load for DC power supply testing
- Load for DC/DC converter testing
Models
| Model | Rated voltage | Rated current | Maximum load power [W] |
|---|---|---|---|
| EGD150W-150V | 150 V | 30 A | 150 W |
| EGD200W-150V | 30 A | 200 W |
- Discontinued models
-
The following model is no longer available as we have stopped production and sales.
Model Rated voltage Rated current Maximum load power [W] EGD300W-150V 150 V 60 A 300 W
Functions
EGD series is light and compact!
Achieves 200 W Maximum Load Power
Compact test environments require equally compact equipment. The EGD series is designed to maximize space efficiency without compromising performance, making it the ideal choice for testing small batteries and components. The unit can be operated as a standalone device via the front panel controls.
Weight: approx 3.6 kg
Multi-channel DC electronic load
The additional rack mount shelf (RMO-133H-EPR) can store up to five EGD series units. It is a multi-channel DC electronic load in a 19-inch rack. It can also contain a digital communications adapter. Note: It depends on the type of communication adapter. In addition, storage space is required for one EG series unit.
For the details of the adapter, refer to the datasheet of "RMO series".
| EGD series | ch No. |
|---|---|
| 5 units | 5 ch |
| 4 units | 4 ch |
| 3 units | 3 ch |
| 2 units | 2 ch |
| 1 units | 1 ch |
Digital interface
In addition to digital control via USB, LAN, RS-232C, RS-485, or GPIB collective control is enabled in the master/slave operation.
Master/Slave control
The operations of up to 16 EG devices can be controlled from the master unit. (Note: This function allows for synchronized control, not for increasing current capacity via parallel connection.)
(A) CO-M cable
Remote control
The following functions are available. For details, download the datasheet below.
- Switching remote/local
- Load control
- Load ON/OFF
- Voltage/Current monitor
- Status output
Specifications
- Input voltage
- 90 to 250 Vac, 50/60 Hz, Single-phase
- Operating mode
-
Constant Current (CC) mode
Constant Resistance (CR) mode - Load control
-
[Local] Setting with rotary encoder on the front panel
[Analog remote] External control voltage 0 to 10 Vdc or external 10kΩ potentiometer
[Digital remote] Command
Options
- -L(Mc0.5), -L(Mc0.15): Changing cable length
- The Length of the CO-M cable (refer to page 4) is 0.5 meters or 0.15 meters, respectively. (Please select either one.)
How to Order
When ordering, add Option No. to Model No.
Example: EGD150W-150V-L(Mc0.5)
Accessories
- AC Input Cable
-
Standard CABLE TYPE1 
125 V/10 A 2.5 meters
Fixed lengthSold separately CABLE TYPE3
250 V/10 A 2.5 meters
Fixed lengthSold separately CABLE TYPE4
250 V/10 A 2.5 meters
Fixed length
- 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-G32m: GPIB Adapter (Scheduled for discontinuation in December 2028)
Example of communication with a digital adapter 
For details, refer to CO/USB series
- 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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-
EGD series Datasheet
Date: 2025-05-02 rev.18
PDF (2,010 KB)
-
How to Use DC Power Supplies
Date: 2025-11-11 rev 09
PDF (1,281 KB)
-
DC Electronic Load Selection Guide
Date: 2025-5-20 rev.05
PDF (5,477 KB)
-
EGD series Basic Instruction Manual
Date: 2020-10-12 rev 0.1
PDF (415 KB)
-
EGD series Instruction Manual
Date: 2020-10-12 rev 1.2
PDF (2,269 KB)
-
EGD series Outline Drawing (DXF, PDF)
Date: 2024-07-25
ZIP (875 KB)
Login Required
-
EGD series Datasheet
Date: 2025-05-02 rev.18
PDF (2,010 KB)
-
How to Use DC Power Supplies
Date: 2025-11-11 rev 09
PDF (1,281 KB)
-
DC Electronic Load Selection Guide
Date: 2025-5-20 rev.05
PDF (5,477 KB)
-
EGD series Basic Instruction Manual
Date: 2020-10-12 rev 0.1
PDF (415 KB)
-
EGD series Instruction Manual
Date: 2020-10-12 rev 1.2
PDF (2,269 KB)
-
EGD series Outline Drawing (DXF, PDF)
Date: 2024-07-25
ZIP (875 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.
