
Manufacture of low-voltage switchgear up to 6300 A, control systems, electrical installation and repair of electrical machines up to 2 MW.
Klebs+Hartmann GmbH & Co. KG
Ludwigshafen am Rhein · St. Leon-Rot · Neustadt an der WeinstraßeNew on Amplifa
About Klebs + Hartmann
Klebs+Hartmann GmbH & Co. KG is a family-run electrical engineering company founded in 1904 in Ludwigshafen with more than 100 employees. At its core is switchgear manufacturing: the company designs and manufactures low-voltage main distribution boards up to 6300 A (Sivacon S8, busbars up to 7000 A) in accordance with IEC 61439-1/2, as well as control cabinets including PLC programming, software development and visualisation. A machining centre for cabinets and mounting plates enables economical production even of single units. Further business areas are electrical installation for medium and low voltage up to 20 kV, process automation, energy management, emergency power systems up to 1000 kVA, and the repair of electrical machines up to 2 MW including profile coil manufacturing, balancing and repair of explosion-proof drives. The company is a Siemens SIVACON S8 Technology Partner, a Danfoss DrivePro Service Partner and VdS-approved for electro-thermography. Customers include companies from the chemical, pharmaceutical, food, automotive and municipal sectors, among them BASF, Siemens, Roche and Daimler Truck.
- Site
- Ludwigshafen am Rhein
- Processes
- Switchgear manufacturing of low-voltage main distribution boards and control cabinets (Sivacon S8,, Manufacture of low-voltage distribution boards up to 6300 A (Sivacon S8 busbars up to 7000 A), Control system construction (PLC, S5 to S7 conversion, software development, visualisation, Electrical installation of medium- and low-voltage systems up to 20 kV (transformer substations,, Process automation (PLC controls, control systems, image processing, bus systems Profibus/Profinet), Energy management / powermanager (multi-site energy monitoring), Electro-thermography per VdS (VdS-approved experts, thermal imaging cameras), Repair of electrical machines (electrical machine construction) up to 2 MW, including repair
- Certificates
- ISO 9001:2015, VdS Certificate Electro-Thermography, Siemens SIVACON S8 Technology Partner, Danfoss DrivePro Service Partner, Certified specialist company under the Water Resources Act (WHG), EcoVadis Rating, ISO 9001, VdS Electro-Thermography, Certified specialist company under WHG (Federal Water Act)
- Founded
- 1904
- Employees
- more than 100
- Industries
- Chemicals/Pharmaceuticals, Industry and Trade, Food/Beverages, Hospitals and Senior Care Facilities, Banks and Savings Banks, Hotels
- 01
Consulting
- 02
Planning
- 03
Documentation
- 04
Production
- 05
Installation
- 06
Commissioning
- 07
Service
Locations

Ludwigshafen am Rhein
DEHeadquarters: workshop, administration, switchgear manufacturing, drive technology, electrical engineering
- Lot size
- Single units to series
- Machining centre for cabinets and mounting plates
- Thermal imaging cameras
- Status Pro Leonova Infinity
- ifm octavis online sensors
- EPLAN CAE system
St. Leon-Rot
DESubsidiary HEK Walter GmbH, electrical engineering services
Neustadt an der Weinstraße
DESubsidiary Elektro Broux Betriebs GmbH, electrical and mechanical work
Components and Systems




Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Switchgear manufacturing of low-voltage main distribution boards and control cabinets (Sivacon S8,Assembly | – | – | – | Single units | – |
| Manufacture of low-voltage distribution boards up to 6300 A (Sivacon S8 busbars up to 7000 A)Assembly | – | – | – | – | – |
| Control system construction (PLC, S5 to S7 conversion, software development, visualisationEngineering | – | – | – | – | – |
| Electrical installation of medium- and low-voltage systems up to 20 kV (transformer substations,Assembly | – | – | – | – | – |
| Process automation (PLC controls, control systems, image processing, bus systems Profibus/Profinet)Engineering | – | – | – | – | – |
| Energy management / powermanager (multi-site energy monitoring)Engineering | – | – | – | – | – |
| Electro-thermography per VdS (VdS-approved experts, thermal imaging cameras)Testing | – | – | – | – | – |
| Repair of electrical machines (electrical machine construction) up to 2 MW, including repairAssembly | – | – | 2 MW | – | – |
| Rewinding and overhauling of motors up to 1000 hp (historically documented)Assembly | – | – | 1000 hp | – | – |
| Profile coil manufacturingAssembly | – | – | – | – | – |
| Mechanical machining (as part of electrical machine construction)Machining | – | – | – | – | – |
| Mobile and stationary balancingTesting | – | – | – | – | – |
| Laser-optical alignmentTesting | – | – | – | – | – |
| Vibration and bearing condition measurement (vibration intensity per ISO 10816, FFT analysis,Testing | – | – | – | – | – |
| Condition-based maintenance with online monitoring (octavis sensors)Testing | – | – | – | – | – |
| Maintenance, repair and commissioning of frequency converters (Danfoss VLT/VACON, DrivePro® LifeAssembly | – | – | – | – | – |
| Emergency power systems / power generators: maintenance, repair, design, delivery up to 1000 kVA,Assembly | – | – | 1000 kVA | – | – |
| Siemens circuit breaker maintenance (3WL, 3WA, certified experts, micro-ohm measurement, testTesting | – | – | – | – | – |
| Retrofit of systems, control cabinets, units and frequency convertersAssembly | – | – | – | – | – |
| Industrial assemblyAssembly | – | – | – | – | – |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Machining centre for cabinets and mounting plates | – | – | – | – | Ludwigshafen |
| Thermal imaging cameras (electro-thermography) | – | – | – | – | Ludwigshafen |
| Vibration measuring device / condition monitoring system | Status Pro Leonova Infinity | – | – | – | Ludwigshafen |
| Online condition monitoring sensors (machine monitoring) | ifm octavis | – | – | – | Ludwigshafen |
| CAE engineering system | EPLAN | – | – | – | Ludwigshafen |
Additional services
Reference customers
Quality and Certifications
Quality assurance is carried out in accordance with a certified QM system ISO 9001:2015 (DEKRA, no. 50219128/1). Testing services include VdS-approved electro-thermography, vibration measurement according to ISO 10816, micro-ohm measurement and test reports in accordance with BetrSichV (German Industrial Safety Ordinance).
| Evidence | Ludwigshafen am Rhein |
|---|---|
| ISO 9001 | |
| VdS Electro-Thermography | |
| Siemens SIVACON S8 Technology Partner | |
| Danfoss DrivePro Service Partner | |
| Certified specialist company under WHG (Federal Water Act) |
Company History
- 1904
Founded by Julius Klebs and Ludwig Hartmann as a “specialist business for the installation of electric lighting and power systems”
- 1918
Reconstruction after war damage thanks to proximity to BASF; new workshops in Ludwigshafen-Hemshof
- 1934
First industrial connections, motors up to 1000 hp are rewound, intensification of international relations
- 1945
After war destruction, reconstruction with 50 employees in the French sector
- 1947
Opening of Plant II in Mannheim
- 1958
Inauguration of the office building on Rheinuferstraße
- 1969
Relocation of the entire operation to Ludwigshafen Mundenheim
- 1977
Closure of Plant II Mannheim
- 1991
Foundation of the Automation Technology GmbH
- 1994
Conversion into Klebs + Hartmann GmbH & Co. KG
- 2006
Addition of electro-thermography per VdS to the portfolio
- 2017
New management under great-grandson Dr. Rudolf Maleri
- 2019
Acquisition of HEK Walter GmbH, St. Leon-Rot; joining the UN Global Compact
- 2022
Acquisition of Elektro Broux Betriebs GmbH, Neustadt an der Weinstraße
- 2024
120th anniversary