
Manufacture of switchgear and control cabinets, switched-mode magnet power supplies for particle accelerators as well as machine and plant installation
Jäger Elektrotechnik GmbH
EppsteinNew on Amplifa
About us
Jäger Elektrotechnik GmbH is a family business founded in 1977 and now run by the third generation, headquartered in Eppstein in the Taunus region, around 40 kilometres west of Frankfurt am Main. The mid-sized company is a partner to industry in the field of electrical engineering. Its core competencies lie in switchgear cabinet and control system construction, in the development and production of switched-mode magnet power supplies for particle accelerators, and in machine and plant installation. At the Eppstein plant, single units and series cabinets are manufactured from lot size 1 up to large volumes, complemented by module assembly, switchgear construction in low- and medium-voltage technology, and automation solutions including PLC programming and visualization. Since the early 1980s, custom magnet power supplies, converter technology and pulsed high-voltage power supplies for klystrons have been produced for use in nuclear research institutes, particle therapy centres and medical technology. As a UL-certified company, it manufactures switchgear and control cabinets to UL 508A including labels for export to the USA and Canada. The services range from planning, project engineering and engineering with EPLAN P8, AutoCAD, SolidWorks and EPLAN Pro Panel through to manufacturing, testing, installation and commissioning.
- Site
- Eppstein
- Processes
- Module manufacturing, Switchgear construction in low- and medium-voltage technology, Automation solutions (incl. PLC programming and visualization), Machining of flat materials and enclosures (CNC drilling and milling), Cable and wire assembly (fully automated, with individual wire printing), Converter technology, High-voltage power supplies (pulsed high-voltage supplies for klystron powering), Quench protection systems with electronic DC circuit breaker
- Materials
- CNC-controlled drilling and milling, Fully automated cable and wire assembly, UL 508A switchgear cabinet construction, Switched-mode magnet power supplies, Pulsed high-voltage power supplies
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 14001:2015, UL 508A, ISO 9001, ISO 14001, Other (UL 508A)
- Founded
- 1977
- Industries
- Industry, Plant and mechanical engineering, Nuclear research institutes, Medical technology, Particle therapy centres
- 01
Consulting
- 02
Planning, project engineering and engineering
- 03
Schematic diagram creation (EPLAN P8, AutoCAD)
- 04
3D assembly layout (EPLAN Pro Panel)
- 05
Prototype and sample construction
- 06
CNC machining of flat materials and enclosures
- 07
Fully automated cable and wire assembly
- 08
Switchgear cabinet and module manufacturing
- 09
Development and production of power supplies and converter technology
- 10
Testing
- 11
Installation and commissioning
Processes and Technology
CNC-controlled drilling and milling
Machining and modification of a wide variety of flat materials and enclosures in switchgear cabinet construction.
Fully automated cable and wire assembly
Lot and sequence production with individual wire printing without changeover, shortening manufacturing time.
UL 508A switchgear cabinet construction
Planning, manufacturing and labeling of switchgear and control cabinets for the North American market.
Switched-mode magnet power supplies
Custom power supplies for beam guidance magnets of particle accelerators in 1-, 2- and 4-quadrant operation.
Pulsed high-voltage power supplies
Individually designed high-voltage supplies for powering klystrons in medical and scientific facilities.
Locations

Eppstein
DEPlant and administration
- Lot size
- Lot size 1 to large volumes
- Materials
- Flat materials and enclosures, cables and wires
- CNC-controlled drilling and milling machine
- Fully automated cable and wire assembly machine with individual wire printing
- Modern machines and machining centres
Components and Products






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Assembly | – | – | – | Lot size 1 – large volumes | – |
| Module manufacturingAssembly | – | – | – | – | – |
| Switchgear construction in low- and medium-voltage technologyAssembly | – | – | – | – | – |
| Automation solutions (incl. PLC programming and visualization)Engineering | – | – | – | – | – |
| Machining of flat materials and enclosures (CNC drilling and milling)Machining | – | – | – | – | – |
| Cable and wire assembly (fully automated, with individual wire printing)Assembly | – | – | – | – | – |
| Assembly | – | – | – | – | – |
| Converter technologyAssembly | – | – | – | – | – |
| High-voltage power supplies (pulsed high-voltage supplies for klystron powering)Assembly | – | – | – | – | – |
| Quench protection systems with electronic DC circuit breakerAssembly | – | – | – | – | – |
| Machine and plant installationAssembly | – | – | – | – | – |
| Metering installationsAssembly | – | – | – | – | – |
| Energy distribution and low-voltage distributionAssembly | – | – | – | – | – |
| Engineering | – | – | – | – | – |
| Schematic diagram creation with EPLAN P8 / CAE solutionsEngineering | – | – | – | – | – |
| 3D assembly layout with EPLAN Pro PanelEngineering | – | – | – | – | – |
| Prototype and sample constructionAssembly | – | – | – | – | – |
| Construction and certification of switchgear and control cabinets to UL 508A (incl. UL label)Assembly | – | – | – | – | – |
| Software development for PLC control systems and visualization systemsEngineering | – | – | – | – | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC-controlled drilling and milling machine (for flat materials and enclosures) | – | – | – | – | Eppstein |
| Fully automated cable and wire assembly machine with individual wire printing | – | – | – | – | Eppstein |
Additional services
Quality
The quality management system meets the requirements of DIN EN ISO 9001:2015 and was first certified in May 1996; since June 2010, an environmental management system according to DIN EN ISO 14001:2015 has also been in place. As a UL-certified company, the company plans, manufactures and labels switchgear and control cabinets to UL 508A.
| Evidence | Eppstein |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| Other (UL 508A) |
History
- 1977
Founding of the family business
Start of the development and production of custom magnet power supplies for nuclear research institutes and particle therapy centres
- 1996
Initial certification of the quality management system (ISO 9001)
- 2010
Introduction of an environmental management system (ISO 14001)