ENDRESS Elektrogerätebau GmbH
ENDRESS has provided real power to international markets with production and development in Germany since 1914. As the leading manufacturer in its industry, the company from Bempflingen offers mobile and stationary power generators, energy storage systems and lighting mast systems.
Its product lines combine technical performance, ambitious further development and a passion for quality to create highly sophisticated solutions that are easy to use every day.
ENDRESS Elektrogerätebau GmbH
Neckartenzlinger Str. 39
72658 Bempflingen
Germany
Management:
Christian Weissinger
Employees:
95
Foundation:
1914
The off-grid solution with the new energy storage system – higher efficiency, reduced noise emissions and optimised generator utilisation for applications on construction sites, bridge renovations or tunnel constructions are just some of the results achieved with the energy storage system.
Its underlying principle is simple but efficient: While the generator is running, it supplies the connected consumers with electricity and simultaneously charges the batteries installed in the energy storage system. The energy storage system absorbs load peaks and allows generators to operate in the optimal power range. As a result, the connected diesel generator can be smaller and therefore more cost-efficient. As soon as the load decreases, the power generator is automatically stopped, and the energy storage system silently supplies the consumers from its batteries. Consumers with a lower power draw are supplied exclusively via the energy storage system. For applications involving consumers with a high-power draw, such as a crane system, the energy storage system automatically starts the generator and automatically synchronizes the grid. Both devices now work in combination, whereby the power of both is added together.
When every second counts – ENDRESS DIN power generators, power supply systems with IT/TN mode switching and mobile floodlight systems are the safe and robust power source for fire brigades, disaster control and emergency services. Due to increasingly modern consumers, the demands on mobile units are also rising. In the development process at ENDRESS, customer and market needs take center stage. Therefore, we constantly update our product lines to meet the requirements of today and tomorrow.

GERDES Kunststoff-Technik GmbH
A medium-sized industrial manufacturing company for injection-moulded plastic components with aesthetic and technical requirements.
GERDES Kunststoff-Technik GmbH
Breslauer Straße 2a
32699 Extertal
Germany
Management:
Sandro Betke,
Norman Weigand
Contact person:
Sebastian Haake
Employees:
260
Foundation:
1873
Technical components subject to the highest requirements in terms of tolerances and dimensional accuracy, manufactured from highly conductive plastics, which must withstand special temperature requirements. These items can be found in electric cars and form the interface for data output. A particular challenge here is the use of closely matched and modular components which, as a universal product, provide the end customer (OEM Automotive) with a wide range of options.
MICROTHERM SENTRONIC GmbH
Microtherm Sentronic is an established company with over 50 years of experience based in Pforzheim.
We are internationally recognised as a well-known manufacturer of innovative and technically high-quality switches and sensors for temperature regulation and limitation. We place great value on the professional development and continuous improvement of our products. We have a dedicated team of experienced engineers and technicians that will work closely with you to develop customised solutions for your specific requirements. From the definition phase to the series launch, we accompany your project and ensure that all technical and qualitative aspects are taken into account. Our products fulfil the highest quality standards and are certified according to IATF. Our experienced sales team is available to support you in selecting the optimum solution for your application.
MICROTHERM SENTRONIC GmbH
Management:
Karlheinz Gruber
Employees:
280
Foundation:
1965
Maximum performance in a miniature design: The reliable and powerful temperature switches from Microtherm are perfect for installations in tight spaces. They ensure optimum overheating protection even under extreme conditions and in the smallest of spaces.
Applications:
- Home: For e.g. roller shutter motor, aquarium, toaster, kettle, extractor fan, washing machine, dishwasher, air conditioning units, coffee machine, fans and ventilators.
- Industry: For e.g. pump and fan motors, electric motors and heaters, transformers, cooling units; power tools
- Automotive as overheating protection for motors: Windscreen wipers, heated side mirrors, seat heaters, motor windings
- Charging park: Temperature management in cooper or aluminium windings and protection of electric motors by initiating protective functions, temperature monitoring in battery management to prevent batteries from overheating, temperature monitoring of high-current connectors
- Hospital: Incubators, hospital bed motors, ventilation systems, ventilators

Microtherm sensors are used for temperature measurement. The value measured by the sensor is used for overtemperature protection, to trigger functions or to display the measured temperature. Our temperature sensors not only safeguard and protect electric motors and/or electric heaters by switching them off, but also provide signals for temperature indication, power reduction or other functions. With the help of our diverse manufacturing processes, we embed sensor elements in customised assemblies. This allows us to add value to a pure sensor element and build cost-effective measurement systems.
Applications:
- Home: Power tool, vacuum cleaner and many more
- Industry: Pump and fan motors, electric motors and heaters, transformers, cooling units; power tools and many more
- Automotive as overheating protection for motors: Windscreen wipers, heated side mirrors, seat heaters, motor windings
- Charging park: Temperature management in cooper or aluminium windings and protection of electric motors by initiating protective functions, temperature monitoring in battery management to prevent batteries from overheating, temperature monitoring of high-current connectors

PRETTL Mechatronics & Actuators GmbH
Prettl Mechatronics andamp; Actuators GmbH is a globally active family business with a tradition as a supplier, primarily in the automotive industry. Sustainability is the guiding principle behind our business activities. For us, that means: Long-term thinking instead of short-term profit-seeking.
We have now been growing for over 50 years. At the same time, we ensure the success of our customers and guarantee the highest quality. Since 1977, we have been developing and manufacturing actuators and electromechanical actuation and adjustment systems as a full-service supplier that improve people's lives worldwide. Thanks not least to the high motivation and creativity of our employees, we are always able to bring projects and ideas to market maturity.
Going forward, we will continue to pursue the goal of helping our customers gain decisive competitive advantages and offering our employees secure jobs through continuous growth.
PRETTL Mechatronics & Actuators GmbH
Management:
Johannes Prettl
Felix Hege
Sascha Jegle
Employees:
1004
Foundation:
1977
Our assemblies are developed according to customer requirements, primarily for use in electric vehicles. Depending on the application, these are designed conventionally via a PWM interface or with integrated control via a LIN or CAN interface, for instance. Taking into account the production costs, we integrate sensors and microswitches for position detection as required.

PRETTL Metal Components GmbH
PRETTL Metal Components GmbH
Geschäftsführung:
Andreas Ludwig
Ansprechpartner:
Mitarbeitende:
Gründung:
1977
The automotive industry is developing faster and faster: The requirements for an automotive supplier include complex value chains, high quality requirements, just-in-time deliveries and more sustainable production. Our core competences in the production of seat structures, assemblies, deep-drawing technology, tubes and systems – including the respective tools – and outsourcing allow us to work with our team on a daily basis to implement these points to the high satisfaction of our customers.

REFU ELEKTRONIK GmbH
The philosophy of the frequency inverter pioneer is to set new standards with sustainable solutions. REFU Elektronik strives to achieve this with every product it offers in the areas of: drive, solar or hybrid applications. Founded in 1965, the company benefits from its many years of experience and extensive know-how in power electronics. However, the portfolio does not end there. REFU Elektronik collaborates with Endress in the PRETTL Energy division to offer the entire value chain in the field of hybrid energy in order to find the optimum solution for your applications. From gensets to power electronics with PV and storage inverters – everything from a single source on request.
REFU ELEKTRONIK GmbH
Management:
Gerhard Heilemann
Employees:
20
Foundation:
1965