DL Series DC Electronic Load
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.
.
.
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 | $1,416.00 | |
| DL150 | DL Series Model DL150 DC Electronic Load - 500V/21A/125W DC Load with 2.4kW/32A transient capacity | $1,674.00 | |
| DL215 | DL Series Model DL215 DC Electronic Load - 150V/42A/250W DC Load with 7.25kW/65A transient capacity | $2,192.00 | |
| DL250 | DL Series Model DL250 DC Electronic Load - 500V/42A/250W DC Load with 4.8kW/65A transient capacity | $2,449.00 | |
| DL515 | DL Series Model DL515 DC Electronic Load - 150V/84A/500W DC Load with 14.5kW/130A transient capacity | $3,094.00 | |
| DL550 | DL Series Model DL550 DC Electronic Load - 500V/84A/500W DC Load with 9.6kW/130A transient capacity | $3,353.00 | |
DL Series Accessories
| Thumbnail | Name | Short description | Price | Buy |
|---|---|---|---|---|
 | RM-DL | Rack Mount option for DL Series DC Load | $106.00 | |
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 test instrument designed to simulate real-world electrical loads for testing and evaluating DC power sources. As an advanced DC load tester, it precisely controls voltage, current, power, or resistance parameters to analyze the performance of power supplies, batteries, solar panels, and DC-DC converters under various operating conditions.
Unlike traditional resistive loads, modern electronic DC loads offer sophisticated programmable features including constant current (CC), constant voltage (CV), constant power (CP), and constant resistance (CR) modes. This programmable DC load capability enables engineers to conduct comprehensive testing scenarios that replicate actual operating environments.
What is the difference between a DC load tester and traditional test equipment?
A DC load tester, specifically a programmable electronic DC load, offers several advantages over conventional DC load test equipment:
- Programmable Control: Unlike fixed resistive loads, electronic load testers provide precise, software-controlled loading
- Multiple Test Modes: Supports CC, CV, CP, and CR modes for comprehensive power source evaluation
- Dynamic Testing: Enables transient response testing, pulsed loading, and automated test sequences
- Data Acquisition: Built-in measurement capabilities with data logging and waveform visualization
- Safety Features: Advanced protection mechanisms including overvoltage, overcurrent, and thermal protection
Applications of High Voltage DC Electronic Loads
High voltage DC loads are essential for testing and validating power sources that operate at elevated voltages. These programmable electronic loads ensure that power supplies, energy storage systems, and electrical components can handle real-world operating conditions safely and efficiently.
1. 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 using professional electronic load equipment
2. 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 with high power electronic load capabilities
3. Electric Vehicle (EV) and Automotive Testing
- Validates EV battery management systems (BMS) and high-voltage power distribution networks
- Ensures DC fast chargers, inverters, and motor controllers operate efficiently under various load conditions
4. Aerospace and Defense Applications
- Critical for avionics power systems, military-grade power supplies, and satellite power components
- Simulates operational loads for high-voltage radar, communication, and navigation systems
5. 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
6. 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
7. 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 appropriate DC load test equipment is crucial for accurate and efficient power testing. Whether you’re evaluating power supplies, batteries, DC-DC converters, or high-voltage systems, the right electronic load tester ensures reliable performance assessment under real-world conditions.
Key Factors to Consider:
1. Voltage & Current Ratings
- Ensure the electronic DC load tester supports the voltage and current range required for your application
- Consider low-voltage applications (LED drivers, consumer electronics) vs. high voltage DC load applications (EV batteries, aerospace, industrial power systems)
2. Load Modes & Programmability
Choose programmable electronic loads that offer multiple operating modes:
- Constant Current (CC) – Simulates steady current loads for DC load testing
- Constant Voltage (CV) – Tests voltage regulation under load conditions
- Constant Power (CW) – Ensures power supply stability across varying conditions
- Constant Resistance (CR) – Simulates resistive loads accurately
Programmability enables automated testing, sequencing, and data logging for enhanced efficiency in professional electronic load applications.
3. 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
4. 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 for electronic load test equipment
5. Power Handling & Thermal Management
- Consider maximum power dissipation requirements and whether active cooling is needed for sustained high-power operation
- Essential for high power DC electronic load testing in industrial and automotive applications
6. Safety Features
- Overvoltage, overcurrent, overpower, and overtemperature protection ensure safe operation
- Short-circuit protection is crucial for high-power programmable DC electronic load applications
What is a Programmable Electronic DC Load?
A programmable electronic DC load is a sophisticated testing device that simulates real-world electrical loads by drawing precisely controlled amounts of voltage, current, power, or resistance from DC power sources—including power supplies, batteries, solar panels, and DC-DC converters.
Unlike traditional resistive loads, a DC programmable load offers advanced control capabilities, allowing engineers to recreate diverse load conditions and evaluate device performance, efficiency, and durability under various operational scenarios. This programmable DC load functionality is essential for comprehensive power source validation.
What makes the Vitrek DL Series different from other programmable DC loads?
The Vitrek DL Series electronic DC load stands out with its industry-leading ±0.05% accuracy, high-speed pulsed loading capabilities up to 100 kHz, intuitive touchscreen interface, and advanced features including sweep capability, real-time waveform viewing, and built-in self-test—all integrated into a compact bench-top design optimized for professional electronic load applications.
Can I use the DL Series for high power DC load testing?
Yes, the DL Series includes models supporting up to 500W continuous power and transient loads up to 14.5kW, making it ideal for high power electronic load applications including industrial power supplies, automotive systems, and other demanding test scenarios requiring robust DC load test equipment.
Is the DL Series a programmable DC load?
Absolutely. The DL Series functions as a fully programmable DC electronic load, supporting comprehensive loading modes including constant current (CC), constant resistance (CR), constant power (CP), and arbitrary sequences—perfectly suited for automated test systems and custom load profiles in professional DC load testing applications.
What types of devices can I test with the DL Series electronic load tester?
You can test a comprehensive range of DC-powered devices with this electronic load test equipment, including:
- Batteries and battery chargers
- LED drivers and lighting systems
- Solar inverters and photovoltaic systems
- DC-DC converters and power modules
- Power supply units and switching supplies
- Energy storage systems
Does the DL Series support data logging and waveform visualization for DC load testing?
Yes. The DL Series offers built-in real-time waveform viewing, X/Y plotting (V vs I or V vs P), and comprehensive historical data logging capabilities for in-depth test analysis—essential features for professional electronic load tester applications.
How accurate is the Vitrek DL Series DC electronic load?
The DL Series delivers highly accurate voltage and current measurements with ±0.05% accuracy, positioning it among the most precise programmable electronic loads in its class for critical DC load test equipment applications.
What connectivity options are available for integration?
The DL Series supports multiple connectivity options including USB (host/device), LAN, and Digital I/O interfaces for flexible integration into test benches and automated systems, ensuring compatibility with existing electronic load test equipment setups.
Can multiple DL units be connected for higher current testing?
Yes, multiple DL Series units can be operated in parallel configuration to support higher current and power loads when testing requirements exceed single-unit capabilities—ideal for high power DC electronic load applications.
Is a rack-mount version available for the touchscreen electronic load?
Yes. An optional rack-mount kit (RM-DL) is available for integrating one or two DL Series units into standard 19″ rack systems, providing flexibility for both benchtop and rack-mounted electronic load tester configurations.
What safety features does the DL Series DC programmable load include?
The DL Series incorporates comprehensive safety protection including:
- Overvoltage and undervoltage protection
- Overcurrent and undercurrent limits
- Overpower and thermal protection
- Short-circuit protection
- Remote sensing capabilities for accurate measurements
- Emergency stop functionality for high power electronic load applications