DL Series DC Electronic Load
Power up your testing capabilities with the Vitrek DL Series DC Electronic Load — designed for unmatched accuracy, speed, and versatility. Delivering ultra-precise voltage and current measurements (±0.05%), high-speed pulsed loading up to 100 kHz, and built-in waveform visualization, this DC electronic load empowers you to push power supplies, batteries, LED drivers, and DC-DC converters to their limits.
With an intuitive touchscreen interface and multiple connectivity options, you’ll experience faster setups, deeper insights, and reliable, real-world performance — making the DL Series the ultimate solution for precision dc load testing.
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Power up Performance — the Industry’s Most User-Friendly DC Load
Maximize your testing capabilities with Vitrek’s DL Series DC Electronic Loads — designed for simplicity, flexibility, and precision. Whether you’re running kW, W, mW, or μW loads, this versatile DC load tester adapts seamlessly to batteries, LED drivers, chargers, and power supplies.
Equipped with a vibrant LCD touchscreen, the DL Series DC Electronic Load ensures effortless setup and configuration — no complex programming required. Its comprehensive self-test guarantees all loading and measurement circuits perform flawlessly, giving you confidence in every test.
From high-speed transient loads to sweep capabilities and real-time data logging, the DL Series provides the ultimate balance of power, precision, and ease of use — all in a compact, bench-friendly design.
Advanced Features — Built for Performance and Precision
- Intuitive Touchscreen Interface: Simplifies setup, measurement configuration, and channel selection.
- High-Precision Measurements: Achieve ±0.05% voltage and current accuracy, even within pulse loads as short as 20μs.
- Wide Loading Range: Handles kW, mW, or μW loads with a 20:1 higher and 1000:1 lower range than standard DC loads.
- Non-Linear & Transient Loading: Supports fast, dynamic loads from 125W to 500W, with sweep capability for performance testing.
- Real-World Load Simulation: Create custom loading sequences with up to 100 steps — ideal for replicating real-world conditions.
- High-Speed Pulse Loading: Supports pulsed loading up to 100 kHz, ideal for power electronics and battery testing.
- Built-In Scope Function: View voltage and current waveforms directly on the unit — no external oscilloscope needed.
- X/Y Graphing & Data Logging: Track V vs I, V vs P, pulse performance, and historical data — visually and numerically.
- Short Circuit Protection: Automatic current and power limiting ensures safe, reliable testing.
- Compact, Rack-Mountable Design: Fits easily on your bench or into a rack setup for streamlined testing environments.
- Multiple Connectivity Options: LAN, USB, Digital I/O, plus parallel unit support for high-current static loading.
Specifications
Ordering & Accessories
Below prices in US$ are for destinations in North America with terms of prepay, net 30 days (OAC) and accepted credit cards. For shipment beyond North America or terms beyond 30 days, please contact the factory for a quotation. If you require rush/expedited shipment please contact Vitrek at (858) 689-2755 or email info@vitrek.com
Rentals
The DL Series Electronic DC Load and accessories are available for rent. Please contact the factory for a rental quotation on the items and period of time you desire. Vitrek offers a generous rental allowance for rentals that are converted to a purchase and rentals of 12 months come with a 10% buyout.
DL Series DC Electronic Load
| Thumbnail | Name | Short description | Price | Buy |
|---|---|---|---|---|
 | DL115 | DL Series Model DL115 DC Electronic Load - 150V/21A/125W DC Load with 3.6kW/32A transient capacity | $1,281.00 | |
| DL150 | DL Series Model DL150 DC Electronic Load - 500V/21A/125W DC Load with 2.4kW/32A transient capacity | $1,514.00 | |
| DL215 | DL Series Model DL215 DC Electronic Load - 150V/42A/250W DC Load with 7.25kW/65A transient capacity | $1,982.00 | |
| DL250 | DL Series Model DL250 DC Electronic Load - 500V/42A/250W DC Load with 4.8kW/65A transient capacity | $2,215.00 | |
| DL515 | DL Series Model DL515 DC Electronic Load - 150V/84A/500W DC Load with 14.5kW/130A transient capacity | $2,799.00 | |
| DL550 | DL Series Model DL550 DC Electronic Load - 500V/84A/500W DC Load with 9.6kW/130A transient capacity | $3,033.00 | |
DL Series Accessories
| Thumbnail | Name | Short description | Price | Buy |
|---|---|---|---|---|
 | RM-DL | Rack Mount option for DL Series DC Load | $95.00 | |
Downloads
NOTE: To learn more about IVI drivers visit the IVI Foundation’s website at www.ivifoundation.org.
What is a DC electronic load?
A DC electronic load is a programmable device used to test and evaluate DC power sources such as power supplies, batteries, solar panels, and DC-DC converters. It simulates real-world electrical loads by precisely controlling voltage, current, power, or resistance to analyze a power source’s performance under various conditions.
Unlike traditional resistive loads, programmable electronic DC loads offer advanced features like constant current (CC), constant voltage (CV), constant power (CP), and constant resistance (CR) modes, allowing for more precise and versatile testing.
Applications of High Voltage DC Loads
High voltage DC loads are essential for testing and validating power sources that operate at elevated voltages. These programmable testing devices ensure that power supplies, energy storage systems, and electrical components can handle real-world operating conditions safely and efficiently.
- Power Supply and Converter Testing
- Evaluates the performance, efficiency, and stability of high-voltage DC power supplies and DC-DC converters.
- Simulates real-world electrical loads to verify compliance with industry standards.
- Battery and Energy Storage System Testing
- Tests high-voltage battery packs used in electric vehicles (EVs), industrial backup systems, and renewable energy storage.
- Performs discharge testing, capacity analysis, and cycle life testing to assess battery longevity and reliability.
- Electric Vehicle (EV) and Automotive Testing
- Validates EV battery management systems (BMS) and high-voltage power distribution networks.
- Ensures that DC fast chargers, inverters, and motor controllers operate efficiently under various load conditions.
- Aerospace and Defense Applications
- Used for avionics power systems, military-grade power supplies, and satellite power components.
- Simulates operational loads for high-voltage radar, communication, and navigation systems.
- Renewable Energy and Solar Power Testing
- Evaluates solar panels, inverters, and high-voltage DC transmission systems for efficiency and durability.
- Tests energy storage solutions used in off-grid and grid-tied solar power installations.
- Industrial and Telecom Power Systems
- Tests high-voltage DC power distribution systems in data centers, telecom infrastructure, and industrial automation.
- Ensures reliable performance of uninterruptible power supply (UPS) systems and HVDC transmission networks.
- Research & Development (R&D) and Quality Control
- Essential for developing and validating next-generation power electronics.
- Helps manufacturers ensure product safety, efficiency, and regulatory compliance before market release.
Choosing the Right DC Load Tester
Selecting the right DC load tester is essential for accurate and efficient power testing. Whether you’re testing power supplies, batteries, DC-DC converters, or high-voltage systems, the right DC electronic load ensures reliable performance evaluation under real-world conditions.
Key Factors to Consider:
- Voltage & Current Ratings
- Ensure the DC load tester supports the voltage and current range required for your application.
- Low-voltage applications (e.g., LED drivers, consumer electronics) vs. high-voltage applications (e.g., EV batteries, aerospace, industrial power systems).
- Load Modes & Programmability
- Choose a programmable electronic DC load that offers multiple operating modes:
- Constant Current (CC) – Simulates steady current loads.
- Constant Voltage (CV) – Tests voltage regulation under load.
- Constant Power (CW) – Ensures power supply stability.
- Constant Resistance (CR) – Simulates resistive loads.
- Programmability allows automated testing, sequencing, and data logging for efficiency.
- Accuracy & Measurement Capabilities
- Look for high-precision voltage and current measurement (e.g., ±0.05% accuracy) for detailed analysis.
- Features like transient response testing, waveform visualization, and sweep functions enhance performance evaluation.
- Connectivity & Integration
- Ensure compatibility with LAN, USB, GPIB, and digital I/O for seamless integration into automated test setups.
- Remote control and data logging capabilities improve workflow efficiency.
- Power Handling & Thermal Management
- Consider the maximum power dissipation (W, kW) and whether active cooling (fans or liquid cooling) are needed for sustained high-power operation.
- Essential for high-power DC load testing in industrial and automotive applications.
- Safety Features
- Overvoltage, overcurrent, overpower, and overtemperature protection ensure safe operation.
- Short-circuit protection is crucial for high-power applications.
What is a Programmable Electronic DC Load?
A programmable electronic DC load is a testing device that simulates real-world electrical loads by drawing controlled amounts of voltage, current, power, or resistance from a DC power source — like power supplies, batteries, solar panels, or DC-DC converters.
Unlike traditional resistive loads, a programmable DC load offers precise control, allowing you to recreate different load conditions to evaluate your device’s performance, efficiency, and durability.
What makes the Vitrek DL Series different from other DC loads?
The Vitrek DL Series stands out with its ±0.05% accuracy, high-speed pulsed loading up to 100 kHz, intuitive touchscreen interface, and advanced features like sweep capability, real-time waveform viewing, and built-in self-test — all in a compact bench-top design.
Can I use the DL Series for high-power DC load testing?
Yes, the DL Series includes models with support up to 500W and transient loads up to 14.5kW, making it suitable for high-power applications like industrial power supplies and automotive systems.
Is the DL Series a programmable DC load?
Absolutely. The DL Series supports fully programmable loading modes including constant current (CC), constant resistance (CR), constant power (CP), and arbitrary sequences — ideal for automated test systems and custom load profiles.
What types of devices can I test with the DL Series DC load?
You can test a wide range of DC-powered devices including batteries, battery chargers, LED drivers, solar inverters, DC-DC converters, and power supply units.
Does it support data logging and waveform visualization?
Yes. The DL Series offers built-in real-time waveform viewing, X/Y plotting (V vs I or V vs P), and historical data logging for in-depth test analysis.
How accurate is the Vitrek DL Series DC load?
The DL Series delivers highly accurate voltage and current measurements with ±0.05% accuracy, making it one of the most precise electronic loads in its class.
What connectivity options are available?
The DL Series supports USB (host/device), LAN, and Digital I/O for flexible integration into test benches and automated systems.
Can multiple DL units be connected for higher current testing?
Yes, multiple DL Series units can be used in parallel to support higher current and power loads when needed.
Is a rack-mount version available?
Yes. An optional rack-mount kit (RM-DL) is available for integrating one or two DL Series units into a 19” rack system.