Electronics manufacturing in Rettert: PCB assembly THT/SMD, custom control systems, switchgear cabinets and ATEX monitoring devices.
GEFAS Elektrotechnik GmbH
56370 Rettert (Headquarters / Production)New on Amplifa
About GEFAS Elektrotechnik
GEFAS Elektrotechnik GmbH was founded on 01.07.2000 in Rettert in the Taunus region by Rainer Strack and Winfried Adletha. The foundation was the founders' professional experience as well as electronics products taken over from Passavant Werke AG. Today's core activities include the production of small and medium series of PCBs in THT and SMD assembly, the manufacture of electronic devices, small switchgear cabinets and mini control systems to customer specifications, as well as the new development and construction of electronic control systems. In addition, the company offers labelling as well as service and repair of its own or third-party boards including maintenance. The products are used in measurement and control technology, drive control, medical technology, rail technology, and as equipment for explosion-hazardous areas. The company's own product is the GEFAS 2008 warning system for light-liquid and coalescence separators, approved for the Ex Zone 0 area with ignition protection type Ex i. Since 2005, quality management has been certified to ISO 9001 by TÜV Rheinland.
- Site
- Rettert
- Processes
- PCB assembly (THT), PCB assembly (SMD), Production of small and medium series of PCBs, New development and construction of electronic control systems to customer requirements, Production of electronic devices (e.g. monitoring devices, automatic backflow gates), Manufacture of mini control systems and switchgear cabinets to customer specification, Repair of its own or third-party boards as well as maintenance work, Insulation measurements to DIN EN 60204-1
- Materials
- THT PCB assembly, SMD PCB assembly, Microcontroller technology
- Certificates
- ISO 9001:2015, Directive 2014/34/EU (ATEX, Annex IV, ignition protection type Ex i), Directive 2014/34/EU (ATEX, Ex i), ISO 14001, IATF 16949
- Founded
- 2000
- Industries
- Measurement and control technology, Drive control, Medical technology, Rail technology, Explosion-hazardous areas (ATEX/Ex), Environmental technology
- 01
New development of electronic control systems
- 02
PCB assembly THT/SMD
- 03
Device and switchgear construction
- 04
Functional testing and measurement
- 05
Service, repair and maintenance
Processes and Test Techniques
THT PCB assembly
Through-hole technology for small and medium series of electronic assemblies.
SMD PCB assembly
Surface mounting of electronic components for small and medium series.
Microcontroller technology
Modern microcontrollers form the basis of the custom control systems and monitoring devices.
Locations
Rettert
DEHeadquarters / Production
- Lot size
- small to medium series
- Materials
- PCBs THT/SMD
- Test equipment for insulation measurements to DIN EN 60204-1
- Cable testers
- Overpressure/underpressure measuring system
- Oscilloscope (Tektronix TDS 210)
- High-voltage tester UH 28M
- Calibration source
Products and Assemblies
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| PCB assembly (THT)Assembly | – | – | – | – | – |
| PCB assembly (SMD)Assembly | – | – | – | – | – |
| Production of small and medium series of PCBsAssembly | – | – | – | small series – medium series | – |
| New development and construction of electronic control systems to customer requirementsEngineering | – | – | – | – | – |
| Production of electronic devices (e.g. monitoring devices, automatic backflow gates)Assembly | – | – | – | – | – |
| Manufacture of mini control systems and switchgear cabinets to customer specificationAssembly | – | – | – | – | – |
| Repair of its own or third-party boards as well as maintenance workAssembly | – | – | – | – | – |
| Insulation measurements to DIN EN 60204-1Testing | – | – | – | – | – |
| Current, voltage, capacitance, frequency and resistance measurementsTesting | – | – | – | – | – |
| PWM measurement by oscilloscopeTesting | – | – | – | – | – |
| Cable testing and overpressure/underpressure measurements (various test equipment)Testing | – | – | – | – | – |
| Manufacture of monitoring devices for light-liquid separators (GEFAS 2008 warning system)Assembly | – | – | – | – | – |
| Manufacture of labellingOther | – | – | – | – | – |
Additional services
Quality and Certification
Since 2005, quality management has been certified to ISO 9001 by TÜV Rheinland; since 2005 the company has also held a certificate under Directive 2014/34/EU for equipment and protective systems for explosion-hazardous areas. In-house test and measurement capabilities include insulation measurements to DIN EN 60204-1, current, voltage, capacitance, frequency and resistance measurements, PWM measurements by oscilloscope as well as cable testers and overpressure/underpressure measurements; switchgear cabinets are delivered function-tested.
| Evidence | Rettert |
|---|---|
| ISO 9001:2015 | |
| Directive 2014/34/EU (ATEX, Ex i) | |
| ISO 14001 | |
| IATF 16949 |
Company History
- 2000
GEFAS Elektrotechnik GmbH was founded on 01.07.2000 by Rainer Strack and Winfried Adletha in Rettert; the foundation was the founders' professional experience and electronics products taken over from Passavant Werke AG.
- 2005
First certification of quality management to ISO 9001 by TÜV Rheinland as well as obtaining the certificate under the Directive now known as 2014/34/EU for equipment and protective systems for explosion-hazardous areas.
- 2018
Winfried Adletha left the company for retirement on 30.11.2018.
- 2026
On 01.01.2026, Rainer Strack handed over the company and its management to his daughter Sandra Balzer; the company remains family-run.