Rigol DL3021
A well-supported programmable load for testing power supplies and batteries in an electronics lab.
Amazon $549$549
150 V / 40 A200 W1
4.0/5
A programmable load with every interface built in, for labs that automate power-supply and battery tests.
- 150 V / 30 AOutput
- 200 WPower
- Electronic loadType
- USB, RS232, LAN, analog remotePC control
Check price at Amazon$574
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Fast 25 kHz dynamic mode
- USB, RS232 and LAN built in, with SCPI commands
- Remote sense
- Three-year warranty
Cons
- Only 200 W
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | SDL1020X-E |
|---|---|
| Output | |
| Type | Electronic load |
| Channels | 1 |
| Channel ratings | 150 V/30 A, 200 W |
| Max voltage | 150 V |
| Max current | 30 A |
| Rated power | 200 W |
| Dynamic mode | 25 kHz |
| Load modes | CC, CV, CR, CP |
| Precision | |
| Setting resolution | 1 mV / 1 mA |
| Readback resolution | 1 mV / 1 mA |
| Remote sense | Yes |
| Control | |
| PC interfaces | USB, RS232, LAN, analog remote |
| SCPI | Yes |
| Over-voltage protection | Yes |
| Over-current protection | Yes |
| Build | |
| Weight | 12.8 lb |
| Warranty | 3 years |
Alternatives in this type
Korad KEL2010
A 300 W programmable load with fine low-range resolution, for battery and supply testing past 200 W.
Amazon $525$525
150 V / 40 A300 W1
OWON OEL1530
A low-cost 300 W programmable load for battery capacity and power-supply testing on a hobby bench.
Amazon $215.99$215.99
150 V / 30 A300 W1
Compare
Compare the Siglent SDL1020X-E with any other bench power supply →
More from Siglent: every Siglent product ranked.