As your partner for measurement and test technology in the field of electronic loads, we would like to inform you of an important product change.
The proven PLI series will be officially discontinued as of December 31, 2026.
We recommend that you plan for any upcoming needs, expansions, or replacement units as soon as possible.
The Future of Measurement Technology - The New HES Series
With the discontinuation of the PLI devices, we are making way for the next generation of energy and performance testing. The HES series is the official successor and was specifically developed to meet the increased demands of modern test benches.
Of course, we would like to provide you with all the important answers to your technical questions regarding the transition below.
How long will technical support and the supply of replacement parts be guaranteed?
Support:
We have no plans to discontinue technical support for PLI devices. We will continue to provide support as usual.
Repairs & Replacement Parts:
We will continue to perform repairs as long as we are able to source the necessary replacement parts.
Can existing software scripts and programming commands continue to be used?
- Yes, in most cases, the commands for the PLI series can also be used for the HES series.
- The HES series command set has been expanded to include additional functions, but the existing PLI command set remains compatible.
- To ensure a smooth transition, we are happy to provide you with a comparison of the SCPI commands (based on the PLI).
How long will technical support and spare parts be available?Is the new HES series mechanically and electrically compatible with the PLI series?
Mechanical:
The design and power density have remained the same, so in principle, little has changed for you during installation. The display has been updated. Depending on the model, there may be slight changes in the placement of connectors or ports.
Electrical:
The electrical performance specifications are virtually identical.
Digital Interfaces:
The RS-232, USB, LAN, CAN, and the optional GPIB are standard features in the HES series, just as they are in the PLI series.
I/O Port:
Both the I/O port of the PLI series and the I/O port of the HES series are 25-pin. Important: The pin assignments of the two I/O ports are different.
Can devices from the PLI and HES series be used in mixed operation?
Parallel Operation:
Mixed operation in a parallel configuration is possible.
Master-Slave Operation:
Please consult with H&H regarding this. We would be happy to advise you.
Whether you’re looking for advice on the latest PLI devices or want to integrate the new HES series into your test environment—as your partner for electronic loads in Germany and around the world, we’re here to provide you with guidance and support.
Hard to believe, but true. For 40 years now, we’ve been supporting you in tackling your technical challenges, projects, and visions. What began four decades ago has grown into a true success story, thanks to your loyalty.
An anniversary like this is, above all, an opportunity to say thank you. And what better way to do that than by actively supporting you in your upcoming projects?
Our anniversary gift for your projects
To kick off our future together, we’ve put together an exclusive discount package for our top-performing product lines. Get 10% off the following highlights now:
Four decades of experience mean one thing above all else to us—we know what really matters in practice.
Interested?
Contact our sales team directly or send us your inquiry via the contact form. We look forward to turning the page to the next chapter together with you.
Here’s to the next 40 years – let’s make a big difference together!
We are pleased to announce the expansion of our portfolio of electronic DC loads.
With the HES series, H&H introduces a new generation of compact, highly efficient devices designed specifically for demanding test environments in research, development, and quality assurance.
Thanks to the modular design, the wide range of variants—such as multi-range devices and models with a zero-volt option—as well as the possibility of customer-specific adaptations, tests for virtually all applications can be carried out efficiently and with precision.
Applications
Whether for testing power supplies, battery testing, or simulating dynamic load profiles in power electronics—the HES series offers the flexibility and accuracy needed to confidently meet even future testing requirements.
Among other features, the HES series offers:
- Seamless integration into automated test systems via modern communication standards.
- Intuitive menu navigation and a high-resolution display for efficient configuration.
Availability and Start of Production
Interested parties can order the new HES series from us starting today. This will ensure you have early access to this technology for your upcoming projects.
Important note:
The official start of production is scheduled for the fourth quarter of 2026.
Our experts are happy to assist you with a personal consultation or a customized quote. You can also find detailed technical specifications on the official product page for the HES series.
We are pleased to announce that the PMLA Series D multi-channel loads are now available from H&H!
Over the past few years, we have worked intensively to create modular, powerful, and high-precision solutions that can be used to load multiple devices under test simultaneously.
Our new multi-channel load systems are ideal for test environments where multiple channels need to be operated in parallel – for example, for simultaneous testing of multiple electronic control units or other components.
Especially in the automotive or testing industry (e.g., vehicle electrical systems, control units, modular test objects), enormous amounts of test time can be saved when many assemblies can be loaded simultaneously.
Thanks to the modular architecture, flexible configuration is possible depending on the test task or system requirements.
Even in confined spaces in the test cabinet, the device can be integrated very well – without compromising on performance. When operating multiple channels synchronously, even complex test profiles can be mapped – ideal for series testing or automated test benches.
The devices are available to order now.
Our team is available to assist with configurations (e.g., number of channels, channel parameters, or integration into existing test environments) and is happy to provide individual advice and quotes.
The new PMLA series multi-channel load opens up significantly more efficient and precise testing options for our customers—whether in laboratory operations, series testing, or complex automation systems.
PMLA D-Series – Versatile precision in a new dimension
The new PMLA-HP (High Power) and PMLA-LP (Low Power) models are a powerful addition to the proven PMLA series from Höcherl & Hackl. The new generation of multi-channel electronic loads enables even more flexible test configurations with up to 72 channels per system and covers a wide power range from 150 W to 600 W per channel. From high current applications to sensitive load simulations, the PMLA D-Series offers modular precision, modern user interfaces, and a comprehensive feature set for demanding test environments.
PMLA standard master device (12 channels) and PMLA HP device (1 channel)
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PMLA Standard
Master devices with brilliant 4.3″ touch screen UI and up to 12 load channels.
Slave devices with up to 12 load channels, without UI.
Proven multi-channel devices with facelift.
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PMLA LP – Under Development
Up to 72 channels.
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PMLA HP
System bus integration of high-power channels with up to 2,100 W each.
1 slave channel in a 2 U chassis.
PMLA Master (Standard) Front
Up to 12 load channels per 2 U device.
Load modules (channels) with:
- 150 W, 300 W, 450 W, 600 W
- 40 V, 60 V, 120 V, 240 V
- up to 120 A
Proven multi-channel series devices with extensive feature set
PMLA Master Rear
SCPI programming and measuring via LAN, USB, RS-232 or CAN bus per standard, GPIB optional.
- Provided for each channel:
- digital input control
- analog control input
- analog monitor signals for U and I
PMLA Slave (Standard)
Up to 12 load channels providing all functions like master device, but without user interface and without data interface.
Channel extension by system bus connection to master device.
PMLA HP
1 high-power channel providing all functions as master device, but without user interface and without data interface.
Up to 2,100 W in 2 U device.
Channel extension by system bus connection to master device.
PMLA LP – Under Development
- many channels with low power
- ideal for zone controller testing
- extendable with PMLA standard and HP devices
Designed specifically for demanding test environments, the series offers scalable power up to 14,400 W – with maximum precision and flexibility. Whether in a compact ½ 19” format or as a powerful 11U unit, the HES series is ready to meet the challenges of modern testing and validation applications – from industrial laboratories to e-mobility. Get ready for a new generation of intelligent electronic load systems – coming soon!
- Brilliant 4.3″ touch screen
- High power density up to 14,400 W, higher power on request
- Temporary overload capacity with many models
- Basic operating modes CC, CV, CR, CP
- Combined operating modes CC+CV, CR+CC+CV, CP+CC+CV, CV+CC
- Multi range models HES MR
- Zero voltage models HES ZV
- High voltage models HES HV
- I/O port as standard, optionally galvanically isolated
- Adjustable protections for current and undervoltage
- MPP tracking
- Master-slave operation
- Dynamic loads with synchronous DAQ
- Data logging directly to USB flash drive
- Functions for testing energy storage devices
- Square, PWM and modulator function
- Internal resistance measurement
- Electronic protection
- Bilingual help system (German/English)
1/2 19", 2 U - 600 W
60 V, 120 V, 300 V, 600 V, 800 V
Up to 60 A
19" ,2 U - up to 2,100 W
60 V, 120 V, 300 V, 600 V, 800 V
Up to 180 A
19" ,3 U - up to 3,200 W
60 V, 120 V, 300 V, 600 V, 800 V, 1,200 V
Up to 300 A
5 U - up to 4,800 W
60 V, 120 V, 300 V, 600 V, 800 V, 1,200 V
Up to 450 A
8 U - up to 9,600 W
60 V, 120 V, 300 V, 600 V, 800 V, 1,200 V
Up to 900 A
11 U - up to 14,400 W
60 V, 120 V, 300 V, 600 V, 800 V
Up to 1,350 A
Testing Inductive Charging Systems
Today‘s charging technology is practical, fully automatic and inductive.
With the series launch of the world‘s first inductive charging system, BRUSA Elektronik AG has proven its position as a technology leader for electromobility.
The charging system is approved for operation in the EU, China, North America and Japan markets.
BRUSA continues its journey to develop and manufacture inductive charging systems with the 2nd generation.
Simulating Test Cases with Electronic Load
To simplify system integration and to achieve more test variations, a PLI11280 electronic load from Höcherl & Hackl was installed in the luggage compartment of the vehicle.
With the ID.4 RollingLab, various test cases can be carried out under real conditions for the further development of the ICS2 (Inductive Charging System Generation 2).
The main focus is on optimizing the energy transfer between the floor panel and the vehicle panel with up to 11 kW input power.
Further test cases are FOD (foreign object detection), LOD (live object detection) and positioning system under real vehicle conditions.
