500V variable DC power supplies provide adjustable 0–500V output for laboratory bench testing and equipment development. Compare 2A, 3A, 5A, 6A and 10A models, two-knob or coarse/fine controls, and optional communication interfaces. Use the model comparison and selection guide below to choose a product and configure your order.
500V DC Power Supply Model Comparison
| Model | Output ranges | Front-panel adjustment | Remote control | Order online |
|---|---|---|---|---|
| eTM-5002 | 0–500V / 0–2A | Four-knob coarse/fine | Optional interface; page lists On/Off/Read | View product |
| eTM-5002C | 0–500V / 0–2A | Two knobs | Programmable; optional communication interface | View product |
| eTM-5003 | 0–500V / 0–3A | Four-knob coarse/fine | Optional interface; page lists On/Off/Read | View product |
| eTM-5003C | 0–500V / 0–3A | Two knobs | Programmable; optional communication interface | View product |
| eTM-5005 | 0–500V / 0–5A | Four-knob coarse/fine | Optional interface; page lists On/Off/Read | View product |
| eTM-5005C | 0–500V / 0–5A | Two knobs | Programmable; optional communication interface | View product |
| eTM-5006 | 0–500V / 0–6A | Four-knob coarse/fine | Optional interface; page lists On/Off/Read | View product |
| eTM-5006C | 0–500V / 0–6A | Two knobs | Programmable; optional communication interface | View product |
| eTM-50010 | 0–500V / 0–10A | Four-knob coarse/fine | Optional interface; page lists On/Off/Read | View product |
| eTM-50010C | 0–500V / 0–10A | Two knobs | Programmable; optional communication interface | View product |
Choose a current range that covers normal operation and startup demand. The C and non-C models have different controls and communication functions, even where their voltage and current ranges match. Select continuous output power and AC input for the actual working points.
Features for Laboratory Bench Testing
- Adjustable 0–500V output: test equipment at different DC input levels, including 200V and 400V, within the load’s limits. Current ranges from 2A to 10A accommodate different powered-load requirements.
- Automatic CV/CC operation: regulate voltage while current follows the load. At the set current limit, constant-current operation can reduce voltage to hold the selected current.
- Front-panel control choices: four-knob models provide encoder coarse/fine adjustment for large changes followed by small setting adjustments. C models use two knobs and list output switch control.
- Five protective functions: the ten compared models list overvoltage, overcurrent, overpower, overtemperature and short-circuit protection. Set limits and connect wiring appropriate to your equipment.
How to Choose a 500V DC Power Supply
Circuit and converter development within 2A or 3A
For high-voltage circuits or DC-DC converter inputs drawing up to 2A, compare eTM-5002 and eTM-5002C. Choose the 3A range of eTM-5003 or eTM-5003C when the input demand exceeds 2A. Select using the converter’s input current, including startup demand, rather than its output current.
The adjustable voltage range lets you compare performance at several DC input levels without selecting another voltage-class supply for each setting. A 500V, 2A test needs 1000W of load power; a 500V, 3A test needs 1500W. The ordered configuration must support each combination continuously.
400V DC input and powered tests within 5A or 6A
For a prototype designed around a 400V DC input, a 0–500V supply covers 400V and nearby test settings within the device’s permitted range. A 400V, 5A load needs 2000W: compare eTM-5005 and eTM-5005C for that current range. For requirements above 5A and within 6A, compare eTM-5006 and eTM-5006C.
Choose the current range from the full test sequence, rather than the first operating point alone. These wattages describe the load requirement; confirm continuous output capability and input configuration for every voltage/current combination.
Higher-current equipment and load tests within 10A
Compare eTM-50010 and eTM-50010C when the powered load needs more than 6A and up to 10A. The 10A range supports selection for higher-current development and integration work, but voltage and power still determine the required configuration. A 500V, 10A load needs 5000W, whereas 200V at 10A needs 2000W.
Manual adjustment or computer-controlled test sequences
Choose a four-knob model when separate coarse and fine controls suit repeated manual changes. Compare the corresponding C model when you prefer a two-knob layout or require programmable communication. The C pages describe programmable interface functions; the non-C pages list On/Off/Read, which should not be assumed to include the same voltage/current setting commands.
For example, eTM-5002C offers RS232, RS485, USB and RS232 plus analogue-control options. Select the interface on the product page and check command compatibility with your software. Confirm the available option for the exact model you order; communication is optional rather than automatically included.
500V Bench Power Supply FAQs
My load needs 500V and 5A. Which model should I consider?
Compare eTM-5005 and eTM-5005C for the 5A range. The load requires 2500W, so the continuous-power and AC-input configuration must cover 500V and 5A together. If startup demand exceeds 5A, consider a higher-current model that covers that demand.
Is 110V AC input suitable for a 500V, 5A test?
No for the listed 110–130V option on eTM-5005C: that option is limited to output power of 1200W or less, while the load requires 2500W. Choose an input and output configuration that supports the working point.
What happens if startup current reaches the set limit?
The supply can enter CC mode and reduce output voltage to regulate current. That can change how a converter or other circuit starts. Choose the model and current setting for the required startup behaviour as well as steady operation.
Does a four-digit display mean higher output accuracy?
No. Display resolution and output accuracy are different specifications. Compare setting accuracy, regulation and ripple/noise under the stated conditions when choosing a supply for a sensitive circuit.
Can I use these supplies with a load that returns energy?
If your battery, converter or other load can feed power back toward the supply, the test setup needs to handle that returned energy. Contact us with the operating voltage, current and test sequence so we can help assess the required configuration. Do not assume a standard bench supply can absorb returned power.
Choose Your 500V DC Power Supply
Select a model to view its specifications, choose the available product options and place your order online.
Need help choosing a model or a custom configuration? Email us or contact us on WhatsApp.
Other voltage ranges: 400V DC power supplies · 600V DC power supplies