
Development and manufacture of digital protection and control devices (SYMAP) for power generation and distribution on land and at sea
Stucke Elektronik GmbH
Hamburg · Belgrade · Shanghai · Busan · Mumbai/ThaneNew on Amplifa
About stuckeGROUP
Stucke Elektronik GmbH (stuckeGROUP) develops and manufactures digital protection and control devices at its Hamburg headquarters for power generation and distribution in low-, medium- and high-voltage systems. The multifunctional protection relays cover generator protection, motor protection, transformer protection, feeder protection, distance protection, line differential protection, arc protection (SYMAP ARC, tripping time under 2 ms), power management, diesel automation as well as hybrid applications and battery storage systems. All software and firmware is developed in-house; production takes place exclusively in Hamburg (Made in Germany). In addition to its products, the company offers consulting and engineering, complete switchgear and control systems including installation and commissioning, protection testing with OMICRON equipment, and a 24/7 lifecycle service with repair and spare parts supply. Customers come from shipbuilding and offshore (including over 2,500 container ships, 800 oil tankers), power plants, renewable energies (wind, solar, hydropower, CHP) as well as emergency power systems for hospitals, data centers and airports. Founded in 1968, the company with 120 employees operates branches in Serbia, China, Korea and India.
- Site
- Hamburg
- Processes
- Manufacturing of protection and control devices (SYMAP series protection relays) for low, medium and, Planning, manufacturing, assembly and commissioning of complete customized switchgear and, Protection testing (secondary and primary protection tests) with calibrated equipment from OMICRON,, Consulting and engineering for energy concepts, emergency power systems, power management incl., Retrofit solutions (plug-and-play) for discontinued protection devices (SYNPOL, DICON, SYNPOL D,, In-house software and firmware development, circuit diagram creation with EPLAN P8, PLC programming, 24/7 lifecycle service, maintenance, repair and spare parts supply for all device generations, Consulting and engineering for energy concepts
- Materials
- Stainless steel, Aluminum
- Certificates
- ISO 9001:2008, ISO 14001:2004, Cyber Security Type Approval IEC 62443-3-3 / IACS UR E27 Rev.1, Type certification SYMAP series (ship classification), Grid compliance VDE-AR-N 4110/4120/4130, Type certification SYMAP Compact series, ISO 9001, ISO 14001, Type certification ship classification (LR, BV, ClassNK, ABS, CCS, RINA, DNV,, Cyber Security Type Approval IEC 62443-3-3 / IACS UR E27
- Founded
- 1968
- Employees
- 120
- Industries
- Shipbuilding and maritime industry, Offshore (ships and platforms), Power plants and energy supply, Renewable energies (wind, solar, hydropower, CHP), Emergency power systems (hospitals, data centers,, Power distribution grids
- 01
Consulting and engineering
- 02
Development (hardware, software, firmware, EPLAN P8)
- 03
Manufacturing and assembly (protection devices, switchgear and control systems)
- 04
Inspection and testing prior to delivery
- 05
Commissioning and acceptance tests
- 06
24/7 lifecycle service, maintenance, retrofit
Materials and Processes
Stainless steel
Housing material of the SYMAP protection devices for high EMC safety.
Aluminum
Front material of the SYMAP Compact devices with low installation depth.
Locations

Hamburg
DEHead Office, Development, Manufacturing, Service
- Materials
- Stainless steel, Aluminum
- Rittal cabinet system
- OMICRON test equipment for protection testing
- EPLAN P8
- modern inspection and testing technology
Belgrade
RSBranch office (Stucke Elektronik Balkan d.o.o.)
Shanghai
CNBranch office (Shanghai Haishan Stucke Electrical Technology Co. Ltd.)
Busan
KRLiaison Office and Repair Center
Mumbai/Thane
INSubsidiary (Stucke Elektronik India Private Limited)
Products and Components







Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacturing of protection and control devices (SYMAP series protection relays) for low, medium andEngineering | – | – | – | – | Stainless steel |
| Planning, manufacturing, assembly and commissioning of complete customized switchgear andAssembly | – | – | – | – | – |
| Protection testing (secondary and primary protection tests) with calibrated equipment from OMICRON,Testing | – | – | – | – | – |
| Consulting and engineering for energy concepts, emergency power systems, power management incl.Engineering | – | – | – | – | – |
| Retrofit solutions (plug-and-play) for discontinued protection devices (SYNPOL, DICON, SYNPOL D,Engineering | – | – | – | – | – |
| In-house software and firmware development, circuit diagram creation with EPLAN P8, PLC programmingEngineering | – | – | – | – | – |
| 24/7 lifecycle service, maintenance, repair and spare parts supply for all device generationsAssembly | – | – | – | – | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Test equipment for secondary protection testing (calibrated and certified) | OMICRON | – | – | – | Hamburg / worldwide service |
| Cabinet system for control systems | Rittal | – | – | – | Hamburg |
Additional services
Reference customers
Quality and Certifications
All products undergo comprehensive electrical and functional tests before delivery. Quality is ensured by the QM certificate DIN EN ISO 9001 as well as type and cyber security certifications of established classification societies.
| Evidence | Hamburg |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| Type certification ship classification (LR, BV, ClassNK, ABS, CCS, RINA, DNV, | |
| Cyber Security Type Approval IEC 62443-3-3 / IACS UR E27 | |
| Grid compliance VDE-AR-N 4110/4120/4130 |
Company History
- 1968
Founded by Diether Stucke; cable design and repair for NDR
- 1974
Development of electronic components for testing equipment in the automotive industry
- 1979
Development of the first protection system for ship generators (SYNPOL)
- 1982
First cruise ship equipped with SYNPOL
- 1992
New development DICON for the control and monitoring of diesel engine gensets
- 1994
SYNPOL D reaches market maturity; opening up of new industries beyond shipbuilding
- 1997
Start of cooperation with Hyundai Heavy Industries
- 2003
Market launch of the SYMAP product line
- 2004
Establishment of the branch office in Serbia
- 2010
Move to the new company headquarters in Hamburg-Rahlstedt
- 2012
Establishment of the branch office in China; market launch of SYMAP Compact
- 2013
Establishment of the subsidiary stucke India
- 2014
Establishment of a branch office in Korea
- 2017
Market launch of SYMAP R retrofit solution
- 2019
Market launch of the SYMAP ARC arc protection system
- 2020
20,000th SYMAP device sold
- 2023
Cyber-secure type certifications by classification societies (until 2025)
- 2024
Start of development of the new product generation