Best 20 Kv Power Supply Options for HV Testing
Choosing a reliable high-voltage power supply for testing and calibration requires evaluating voltage capabilities, current limits, protection features, and ease of use. The following selections cover bench DC sources and HV-capable hipot testers that are suitable for lab environments, electronics work, and industrial testing. Each entry includes key specifications and protective features to help compare options quickly. Use the buying guide at the end to weigh factors like voltage range, regulation, safety, and expansion potential when selecting a unit for your needs.
| Product | Brand | Voltage Range | Current | Use Case |
|---|---|---|---|---|
| Associated Research 03865 – AC/DC Hipot | Associated Research | AC up to 5 kV / DC up to 6 kV | AC 20 mA / DC 7.5 mA | High-voltage insulation testing |
| Jesverty SPS-3020H | Jesverty | 0-30V | 0-20A | Bench power supply with encoder knob |
| NICE-POWER 0-30V 20A | NICE-POWER | 0-30V | 0-20A | High-power bench supply |
| Jesverty SPS-6020H | Jesverty | 0-60V | 0-20A | High-power bench supply |
| Meiyue Adjustable Power Supply | Meiyue | 3-24V | ≤5A | Versatile, compact regulator |
Note: All products listed are designed for electrical testing, lab experiments, and communication with power-sensitive devices. Review each item’s safety features and connections before use to ensure compatibility with your test setup and compliance requirements.
Associated Research 03865 Hipot Tester
Product: Associated Research 03865 – AC/DC Hipot, 5 kV @ 20 mA AC, 6 kV @ 7.5 mA DC
Brand: Associated Research
URL: https://www.amazon.com/dp/B0B99ZCRPC?tag=spcrewenergy-20
- AC/DC hipot tester
- Maximum AC rating: 5 kV at 20 mA
- Maximum DC rating: 6 kV at 7.5 mA
Jesverty SPS-3020H Bench Power Supply
Product: Jesverty DC Power Supply Variable, 0-30V 0-20A 600W Switching DC Regulated Bench Power Supply with Encoder Knob, Output On/Off Switch, 4-Digit LED Display, OVP & OCP, Aux Output Terminal – SPS-3020H
Brand: Jesverty
URL: https://www.amazon.com/dp/B0DQWGG5F4?tag=spcrewenergy-20
- Encoder adjustment knob for precision control (0.01V/0.01A)
- Output ON/OFF switch for quick changes without reconnecting loads
- OVP and OCP protection with temperature-regulated cooling
NICE-POWER 0-30V 20A Power Supply
Product: NICE-POWER DC Power Supply Variable, 0-30V 0-20A 600W High Power Bench Power Supply with Encoder Knob & Output Switch
Brand: NICE-POWER
URL: https://www.amazon.com/dp/B0C6JV3Y7Y?tag=spcrewenergy-20
- Encoder knob for precise voltage/current setting
- Front-panel output on/off switch for safe power cycling
- Back-panel high-current terminal for higher load demands
- Multiple protection features and memory storage
Jesverty SPS-6020H High-Power Supply
Product: Jesverty DC Power Supply Variable, 0-60V 0-20A 1200W Switching DC Regulated Bench Power Supply with Encoder Knob, Output On/Off Switch, 4-Digit LED Display, OVP & OCP, Aux Output Terminal – SPS-6020H
Brand: Jesverty
URL: https://www.amazon.com/dp/B0F9NK9K9V?tag=spcrewenergy-20
- High-widelity encoder adjustment for fine control
- Integrated output on/off switch with protective features
- OVP and OCP protections plus cooling mechanism
Meiyue Adjustable Power Supply
Product: Adjustable Power Supply 3V~24V 5A 120W Universal 100V-240V AC/DC Power Adapter Converter with DC Tips & Polarity
Brand: Meiyue
URL: https://www.amazon.com/dp/B0BKPZZV83?tag=spcrewenergy-20
- Wide input range and adjustable DC output
- 14 DC plug options for various devices
- Suitable for LED strips, DIY projects, and small electronics
Buying Guide
- Voltage range and current: For HV testing, ensure the unit can safely reach and regulate your target voltage with adequate current headroom. Hipot testers offer high voltage capabilities, while bench supplies provide stable lower voltage with higher current options.
- Protection features: Look for over-voltage, over-current, short-circuit, and thermal protections. Some models include temperature-regulated cooling and soft-start features to protect both the device under test and the power supply.
- Control method: Encoder knobs provide precise, repeatable adjustments but may have a learning curve. Front-panel switches enable quick power cycling. Consider whether you need memory storage for frequently used settings.
- Connection and load handling: Back-panel high-current terminals are important for high-current testing. Ensure the output connectors and cables are rated for your intended load.
- Safety and compliance: Verify that the unit meets local safety standards and includes clear lab-grade insulation, shielding, and grounding recommendations. If testing HV, ensure enclosure integrity and proper interlocks.
- Future expansion: If you anticipate expanding your test scenarios, select a power supply with higher voltage/current ceilings or modular capabilities to minimize the need for multiple devices.
- Applications: Use HV hipot units for insulation testing, be PCBs and components requiring strict voltage control. Use bench supplies for general electronics development, battery charging, and lab experiments.