MagnaLOAD DC Electronic Loads background

MagnaLOAD - DC Electronic Loads from 1.25 kW to 20 kW

High-precision linear MOSFET DC electronic loads engineered for continuous full-power loading up to 50°C ambient temperature, powered by MagnaLINK™ digital DSP control.

Linear MOSFET Architecture

Robust Power Dissipation & High-Fidelity Sinking

Magna-Power's MagnaLOAD line of programmable DC electronic loads combines the company's MagnaLINK™ distributed DSP digital control platform with conservative thermal management and heavy-duty active components. Designed for demanding automated test equipment (ATE) and R&D application environments, MagnaLOADs provide flexible power sinking without injecting high-frequency switching noise back into your device under test.

Multi-Mode Control

5 Operating Modes

Versatile control algorithms support Constant Voltage (CV), Constant Current (CC), Constant Power (CP), Constant Resistance (CR), and Shunt Regulator modes for diverse source characterization.

Thermal Engineering

Continuous Duty at 50°C

Conservatively rated heatsink designs and industrial fan speed control allow uninterrupted, full-power continuous dissipation even in challenging elevated ambient temperatures.

DSP Control

MagnaLINK™ Platform

Fully digital control loops provide software-adjustable control gains, programmable voltage/current slew rates, high-accuracy measurements, and master-slave system scaling.

MagnaLOAD Series Selection

ALx Series Linear MOSFET DC Electronic Load

The ALx Series utilizes conventional linear MOSFET-based dissipative elements to achieve an exceptionally wide voltage-current operating envelope within the unit's maximum power rating.

ALx Series Specifications Overview

Rack-mount form factor from 3U to 24U | 27 Orderable Models
Made in USA • Air-Cooled
Power Range
1.25 kW to 20 kW
Voltage Range
Up to 1000 Vdc
Current Range
Up to 4800 Adc

By integrating heat management innovations originally engineered for high-density power supplies, ALx Series electronic loads ensure long product lifecycles, low-drift current regulation, and stable performance across energy storage, fuel cell, battery pack, and power conversion test benches.

Customization & Integration

Integrated Options for Specialized Test Racks

Tailor your electronic load instrument to match specific control networks, environmental constraints, and safety requirements with factory-installed hardware option codes.

LXI TCP/IP Ethernet

+LXI

Certified LXI Class C TCP/IP Ethernet interface with embedded web server for convenient browser control and SCPI socket communication over local networks.

EtherCAT Protocol

+ECAT

Dual RJ-45 EtherCAT interface providing real-time deterministic communication for rapid motion control, hardware-in-the-loop (HIL), and industrial automation lines.

CANopen Interface

+CAN

Native CANopen communication protocol supporting high-speed CAN bus integration, widely specified across automotive and electric vehicle test systems.

IEEE-488 GPIB

+GPIB

Full IEEE-488 GPIB interface enabling seamless backward compatibility with legacy automated test equipment (ATE) rack architectures.

Ruggedized Packaging

+RUG

Internal mechanical reinforcement tested to select MIL-STD-810G and RTCA DO-160 shock and vibration standards for airborne and mobile testing setups.

High Isolation Output

+ISO

Extends isolation ratings for high-voltage models (250 Vdc to 1000 Vdc) where applications demand floating operation or series stacking.

System Expansion

Add-On Modules & System Integration Accessories

Complete your power test station with factory-tested high-current power cables, precision measurement units, thermal compounds, and pre-configured rack enclosures.

DBx Precision Module

High-stability measurement add-on delivering stability under 10 ppm, 24-bit resolution, and up to 10x reduction in ripple for sub-ppm current accuracy.

BDx Blocking Diode Module

1U rack-mount reverse isolation module engineered to protect DC power supplies and loads from back-EMF, inductive kickback, or battery voltage feedback.

MagnaLINK™ Master-Slave Cable

Digital interconnect cable for synchronizing multiple xGen load units under a single master controller for uniform current sharing and simplified commands.

Custom DC Power Cables

Made-to-order low-inductance DC cables with specialized terminal lugs, sized for high current/high voltage ratings up to thousands of amperes.

Pitel Paste Thermal Compound

Formulated by Magna-Power specifically for power semiconductor mounting, optimizing heat transfer across heavy-duty copper heat sinks.

Integrated Cabinet Enclosures

Turnkey rack enclosures (12U to 36U) with heavy-duty casters, AC input distribution, thermal exhaust management, and pre-installed wiring.

Request MagnaLOAD™ Technical Quotation & Sizing

Speak with a Magna-Power application engineer to evaluate your duty cycle, voltage/current envelopes, and digital communication requirements. Get expert assistance and fast lead-time confirmation for your procurement program.

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