| Weight | 15 kg |
|---|---|
| Dimensions | 62 × 56 × 26 cm |
| Current | 50A |
| Voltage | 30V |
| Wattage | 1000 ～ 1500W |
eTM-3050U 30V 50A Programmable DC Power Supply, 3U
Original price was: $ 1,499.00.$ 986.00Current price is: $ 986.00.
30V 50A programmable DC power for high-current bench and rack test systems. Set the output at the front panel or integrate it into a Modbus RTU test setup.
- ✓ Continuously adjustable 0–30V voltage and 0–50A current
- ✓ Automatic CV/CC operation
- ✓ Four-digit LED readouts for voltage, current, output power and equivalent impedance
- ✓ Digital encoder adjustment with coarse/fine control
- ✓ One-button output on/off control
- ✓ Overvoltage, overcurrent, overpower, overtemperature and short-circuit protection
- ✓ RS232, RS485 and USB communication ports with Modbus RTU control
- ✓ Low-noise, low-ripple switching output with intelligent cooling fan
- ✓ 220V AC input; fixed 110V configuration available
- ✓ SENSE compensation connections for load-side voltage sensing
- ✓ Power cord, compliance certificate, user manual and 4.0 wiring terminal supplied
Order this model online. Contact us for a specific AC input or system configuration.
Additional information
Product Paramenters
Product Paramenters
| Model | eTM-3050U |
| Power Supply Type | Energy Saving Switching Power Supply |
| Input Voltage | AC 220V + 10% (Optional: Fixed AC110V Input ) |
| Input Frequency | 50Hz/60Hz |
| Output Voltage | Constant voltage value range: 0-30V, continuously adjustable |
| Output Current | Constant current value range: 0-50A, continuously adjustable |
| Way of Working | Automatic switching between constant voltage and constant current mode |
| Display Resolution | Four-digits display: voltage 10mV, current 10mA |
| Setting Accuracy | Voltage: 0.1V Current: 0.1A |
| Ripple & Noise | <1% (valid values) |
| Protective Function | Over-voltage protection, Over-current protection, Over-power protection, Over-temperature protection, and Short circuit protection |
| Working Environment | Temperature: 5-40 celsius Relative Humidity: <80% |
| Storage Environment | Temperature: 5-30 celsius Relative Humidity: <60% |
| Height above Sea Level | ≤2000m |
| Dimension | 540*430*130mm (Length*Width*Height)mm |
| Weight | 13KG |
Product Description
Product Description
30V 50A DC power for a rack or workbench
eTM-3050U provides continuously adjustable 0–30V output and a 0–50A current setting in a 3U enclosure. Front-panel encoder controls support everyday adjustments, while RS232, RS485 and USB communication with Modbus RTU provides a route into computer-controlled test systems.
Set the voltage, limit the current and control the output
Set voltage and current before enabling the output. Automatic constant-voltage and constant-current operation lets the supply respond as the load reaches the selected current limit. Four-digit LED readouts show voltage, current, output power and equivalent impedance, with CV/CC indicators for the operating mode. Encoder adjustment and output on/off control keep repeated bench operations within reach.
eTM-3050U specifications
| Voltage range | 0–30V, continuously adjustable |
|---|---|
| Current setting | 0–50A, continuously adjustable |
| Display resolution | Voltage 10mV; current 10mA |
| Setting accuracy | Voltage 0.1V; current 0.1A |
| Control protocol | Modbus RTU |
| Communication | RS232 / RS485 / USB |
| Dimensions / weight | 540 × 430 × 130mm / 13kg |
Connect to a test controller
RS232, RS485 and USB ports support Modbus RTU communication. Integrate output control into your test software and use the front-panel displays for local checks. Use the matching command/register documentation when setting up automated tests.
Load-side sensing and cooling
SENSE connections allow voltage sensing at the load to compensate for output-lead voltage drop. This is useful with longer test cables and higher load currents. Use current-rated power leads and terminals, and keep the rear fan and ventilation openings clear. The low-noise intelligent cooling arrangement supports bench use; protection includes overvoltage, overcurrent, overpower, overtemperature and short-circuit protection.
Ripple and noise are specified below 1% effective value. Allow more than 15 minutes of warm-up when working to the output specifications.
Applications
DC converter and controller development
Vary the DC input during converter or controller checks within the 0–30V range. A current setting up to 50A accommodates higher-current test points, while SENSE supports load-side voltage regulation.
Production and functional test fixtures
Use the 3U format in a test rack or on a bench. Combine encoder adjustment for setup with Modbus RTU control for repeated production checks.
Computer-controlled test benches
Connect through the appropriate communication interface and coordinate power application with the test sequence. For loads that can feed energy back into the supply, include suitable external backfeed protection in the test system.
Prepare the installation
Allow room for the 540mm-deep chassis, rear connections and cooling airflow. The enclosure is 430mm wide and 130mm high, with a weight of 13kg. Supplied items include the power cord, compliance certificate, user manual, SENSE compensation interface and 4.0 wiring terminal. The input configuration is 220V AC, with fixed 110V available. Order online or contact us for the required input configuration before ordering.
eTM-3050U FAQs
What voltage and current can I adjust?
The voltage is continuously adjustable from 0 to 30V and the current setting from 0 to 50A.
Can I control this supply from a computer?
Yes. The RS232, RS485 and USB ports support Modbus RTU. Use the corresponding interface and register documentation with your test software.
What does SENSE compensation do?
SENSE measures voltage at the load so the supply can compensate for drop along the output leads. Connect the sense wiring according to the product manual; it does not replace the current-carrying output cables.
What protections are provided?
Overvoltage, overcurrent, overpower, overtemperature and short-circuit protection are included.
Is a 110V input configuration available?
A fixed 110V AC input configuration is available alongside the 220V configuration. Select the listed option where provided, or contact us with the required input before ordering.
How do I order online?
Set the quantity and add this model to your cart. Contact us before ordering if you need a different AC input or a specific system configuration.
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