H&H PMLA series DC loads
- Multichannel DC load
- up to 12 channels in a 19” -2 HU
- up to 72 channels per system
- 150 W, 300 W, 450 W and 600 W channels
- up to 240 V, up to 120 A
- CC, CR, CV and CP mode
- Dynamic testing
- LAN, USB, RS232, CAN, GPIB and analog interface

The H&H PMLA Series is an innovative multi-channel electronic load designed for versatile and efficient test environments. With a compact 19” 2U rack, the PMLA accommodates up to 12 independent load channels, expandable to 72 channels via Slave units. With galvanic isolation per channel, this series is ideal for applications such as burn-in testing, battery testing and electrical system validation.
Flexible Configuration and Powerful Functionality
The PMLA series supports a wide range of module configurations, allowing users to tailor the system to their specific testing needs.
> Available power modules: 150W, 300W, 450W, 600W
> Voltage levels supported: 40V, 60V, 120V, 240V
> Adjustable current rating: from 1A to 120A
> Maximum total system power: 1,800W
> Expandable configuration via Slave units
With the ability to configure each load module individually or in groups, the PMLA enables realistic load profiles and complex test scenarios. Dynamic load functionality ensures accurate simulations, essential for reliable test results.
Advanced Operation and Connectivity
The PMLA series is controlled via a user-friendly graphical interface and supports various data interfaces, allowing easy integration into various test setups.
> Standard interfaces: RS-232, USB, LAN
> Optional interfaces: GPIB, CAN
> Real-time analog control
> Individual monitoring of voltage and current per channel
SCPI programming, trigger-driven control and internal data logging make the PMLA suitable for laboratory use as well as industrial applications.
Key features
> Modular design for maximum flexibility and scalability
> Operates in multiple modes: constant current, voltage, resistance and power (CC, CV, CR, CP)
> Comprehensive protection features, including over-current, over-power, overtemperature and over-voltage protection
> Support for dynamic load profiles and MPP tracking for solar panel testing
> Integrated battery discharge function for energy storage and battery testing
> Settings and test scenarios can be saved and reloaded
> Ability to expand the system up to 72 channels via Slave units
Applications H&H PMLA series DC loads
The PMLA series is a versatile solution for a wide range of test environments, including:
> Testing and validation of electronic components.
> Battery and energy storage testing
> Burn-in and endurance testing
> DC/DC converter and power supply testing
> Automotive and aerospace applications
> Calibration and quality control
The PMLA series combines power, flexibility and advanced software integration, making it an ideal choice for high-performance laboratory and industrial applications. With a modular design, comprehensive protection and user-friendly operation, this series offers a reliable solution for accurate and efficient load simulations.