100W/250W Constant Current Electronic Load Module | 10A/20A
100W/250W Constant Current Electronic Load Module | 10A/20A
100W / 250W Adjustable High-Power Constant Current Electronic Load Module
Whether you're testing power supplies, batteries, or DC circuits, this Adjustable Electronic Load Module delivers precise, stable constant-current control in a compact and robust form factor. Available in two power configurations — 100W (0–10A) and 250W (0–20A) — this module is an essential tool for engineers, hobbyists, and electronics professionals who demand accuracy and reliability.
Key Features
- Two Power Options: Choose the 100W (10A max) or 250W (20A max) version to match your testing requirements.
- Constant Current Mode: Single-mode constant current operation ensures stable, repeatable load testing.
- High Accuracy: Maximum discharge current error of only ±0.7% or 0.01A for precise measurements.
- DC 12V Fan-Cooled Input: Requires DC 12V (±5%) for onboard cooling fan — keeps the module running safely under high load.
- Wide Voltage Range: Supports up to 60V (100W model) or 100V (250W model) input from the device under test.
- Adjustable Load Current: Dial in exactly the current draw you need from 0A up to the rated maximum.
- Compact & Bench-Ready: Manageable footprint makes it easy to integrate into any test bench setup.
Specifications
100W Model
- Current Range: 0–10A
- Fan Input Voltage: DC 12V (±5%)
- Maximum Test Voltage: 60V
- Maximum Power: 100W
- Operating Mode: Single-mode Constant Current
- Max Current Error: ±0.7% or 0.01A
- Dimensions: 10.5 × 9.5 × 6.6 cm
250W Model
- Current Range: 0–20A
- Fan Input Voltage: DC 12V (±5%)
- Maximum Test Voltage: 100V
- Maximum Power: 250W
- Operating Mode: Single-mode Constant Current
- Max Current Error: ±0.7% or 0.01A
- Dimensions: 12.5 × 8 × 8 cm
What's in the Box
- 1 × Electronic Load Module (your chosen variant)
Notes
- Colors may vary slightly from photos due to monitor display differences.
- Please allow 1–10 mm tolerance due to manual measurement.
Made in Mainland China.
For best practices on working safely with DC electrical test equipment, refer to guidelines from the U.S. Occupational Safety and Health Administration (OSHA) — Electrical Safety.
Frequently Asked Questions
Q: What is an electronic load module used for?
A: An electronic load module is used to simulate a real electrical load on a power source such as a power supply, battery, or DC generator. It allows you to draw a controlled, adjustable amount of current so you can test voltage regulation, capacity, and overall performance of the source under controlled conditions.
Q: What does "constant current mode" mean on this electronic load module?
A: Constant current (CC) mode means the module will continuously draw a fixed, user-set current from the device under test, regardless of voltage fluctuations. This is the primary operating mode of both the 100W and 250W variants, making them ideal for battery discharge testing and power supply characterization.
Q: Why does this load module need a separate DC 12V input?
A: The DC 12V input powers the module's internal cooling fan, which is essential for dissipating the heat generated during high-power load testing. This keeps the module operating within safe thermal limits. Note: This 12V input is for the fan only — the device under test connects separately to the load terminals.
Q: Which model should I choose — the 100W or the 250W?
A: Choose the 100W (10A, up to 60V) model for lighter testing tasks such as small power supplies and battery packs. Opt for the 250W (20A, up to 100V) model if you need to test higher-power sources, larger battery banks, or industrial-grade power supplies.