
Develops and manufactures measurement and test systems for the electrical power supply as well as laser-optical inspection systems

KoCoS Technology Group / KoCoS Messtechnik AG
Korbach · Weimar · Xiamen · Westerly, RI · Bielsko-Biała · Cape Town · VadodaraNew on Amplifa
About KoCoS
The KoCoS Technology Group is an internationally operating group of companies headquartered in Korbach that develops, produces and distributes measurement and test systems for electrical power supply installations as well as laser-optical inspection systems for quality monitoring. The portfolio includes EPPE series power quality analyzers, PROMET series micro-ohmmeters for resistance measurements up to 600 A, switchgear and protection relay test systems (ACTAS, ARTES), current and voltage sources as well as systems for digital fault recording. In the field of optical metrology, KoCoS manufactures laser-optical inspection systems for applications such as wafer edge profile measurement, 3D measurement, vacuum inspection and catalytic converter measurement, which are used in the semiconductor, automotive and food industries. All products are developed in the company's own research and development based on a modular hardware and software concept. In addition, the group offers engineering services, including load flow and short-circuit calculations, grid concepts, project management and power quality measurement campaigns. With headquarters in Korbach and a location in Weimar as well as subsidiaries in China, the USA, Poland, South Africa and India, KoCoS serves utilities, switchgear operators and manufacturers as well as industrial companies worldwide.
- Site
- Korbach
- Processes
- Power Quality Measurement, Digital Fault Recording, Switchgear Testing, Resistance Measurement, Protection Relay Testing, Meter Testing, Wafer Edge Profile Measurement, 3D Measurement and Inspection
- Materials
- Power Quality Measurement, Resistance Measurement, Switchgear Testing, Protection Relay Testing, Laser-Optical Inspection
- Certificates
- DIN EN ISO 9001:2015
- Industries
- Electrical power supply / utilities, Switchgear operators and manufacturers, High-voltage service providers, Semiconductor industry, Automotive industry, Food industry
- 01
Research & Development
- 02
Production
- 03
Sales
- 04
Project Planning & Commissioning
- 05
Engineering Services
- 06
Service & Support
- 07
Training
Processes & Technologies
Power Quality Measurement
Stationary and compact analyzers for continuous power quality monitoring in accordance with EN 50160 and IEC 61000-4-30.
Resistance Measurement
Micro-ohmmeters using four-wire measurement for assessing contact and transition resistances in the µΩ range.
Switchgear Testing
Test systems for static and dynamic contact resistance measurement on power circuit breakers.
Protection Relay Testing
Compact test devices for simple and reliable testing of protection relays.
Laser-Optical Inspection
Inspection systems for wafer edge profile measurement, 3D measurement, vacuum inspection and catalytic converter measurement.
Locations

Korbach
DEHeadquarters; development, production and sales of measurement and test systems for the electrical power supply
- EPPE CX
- EPPE RX
- PROMET SE+
- PROMET R300/R600
- ARTES RC4
- ACTAS
- DIgSILENT PowerFactory
Weimar
DELaser-optical inspection systems for quality monitoring (KoCoS Optical Measurement GmbH)
Xiamen
CNSubsidiary (KoCoS Xiamen Measurement Technology Co., Ltd.)
Westerly, RI
USASubsidiary (KoCoS America LLC)
Bielsko-Biała
PLSubsidiary (KoCoS Polska sp. z o. o.)
Cape Town (Brackenfell)
ZASubsidiary (KoCoS Measurement & Control PTY Ltd.)
Vadodara, Gujarat
INSubsidiary (KoCoS Technologies India Pvt. Ltd.)
Systems & Products



Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Power Quality MeasurementTesting | – | – | – | – | – |
| Digital Fault RecordingTesting | – | – | – | – | – |
| Switchgear TestingTesting | – | – | – | – | – |
| Resistance MeasurementTesting | – | – | – | – | – |
| Protection Relay TestingTesting | – | – | – | – | – |
| Meter TestingTesting | – | – | – | – | – |
| Wafer Edge Profile MeasurementTesting | – | – | – | – | – |
| 3D Measurement and InspectionTesting | – | – | – | – | – |
| Vacuum InspectionTesting | – | – | – | – | – |
| Catalytic Converter MeasurementTesting | – | – | – | – | – |
| Network Calculations (load flow and short circuit calculations)Engineering | – | – | – | – | – |
| Project ManagementEngineering | – | – | – | – | – |
| PQ Measurements / Power MeasurementsTesting | – | – | – | – | – |
11 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Power Quality Analyzer | KoCoS EPPE CX | – | – | – | – |
| Power Quality Analyzer / Fault Recorder | KoCoS EPPE RX | – | – | – | – |
| Portable micro-ohmmeter (200 A) | KoCoS PROMET SE+ | – | – | – | – |
| Micro-ohmmeter up to 600 A | KoCoS PROMET R300/R600 | – | – | – | – |
| Micro-ohmmeter up to 10 A | KoCoS PROMET L10 | – | – | – | – |
| Micro-ohmmeter | KoCoS PROMET L100s | – | – | – | – |
| Resistance measuring device for switchgear testing (200 A) | KoCoS PROMET CE | – | – | – | – |
| Protection relay test system | KoCoS ARTES RC4 | – | – | – | – |
| Switchgear test system | KoCoS ACTAS | – | – | – | – |
| Grid calculation program | DIgSILENT PowerFactory | – | – | – | Korbach |
| Flexible current probe | KoCoS ACP3000 B / ACB 3000 B | – | – | – | – |
Additional services
Reference customers
Quality
The KoCoS group maintains a certified quality management system in accordance with DIN EN ISO 9001:2015 covering the development, production and distribution of measurement and test systems as well as project planning and service. The certification applies to both German locations in Korbach and Weimar.
| Evidence | Korbach | Weimar |
|---|---|---|
| DIN EN ISO 9001:2015 |
History
Foundation of the first subsidiary in Johannesburg, South Africa; over 35 years of experience in measurement and test technology
- 2025
Establishment of KoCoS Technologies India Pvt. Ltd. in Vadodara, Gujarat – further international expansion