Engineering and manufacturing of type-tested medium- and low-voltage switchgear, transformer enclosures and protective enclosures for industry and power supply
Leukhardt Schaltanlagen GmbH
Immendingen (headquarters)New on Amplifa
About Leukhardt Schaltanlagen
Leukhardt Schaltanlagen GmbH, headquartered in Immendingen (southern Germany), develops, engineers and manufactures custom switchgear for medium and low voltage as well as transformer protective enclosures and neutral-point enclosures for indoor and outdoor applications. The product portfolio includes the type-tested systems Basis Block MC 1, MC 3 and MC 3 S (metal-enclosed, air-insulated, per IEC 62271-200), the low-voltage switchgear systems Vario Block TN, TN-S and TN-V (per IEC 61439, with passive and active arc-fault testing) as well as the Energie Block TEB systems for cast-resin transformers. The medium-voltage technology avoids climate-harmful substances such as SF6 or gas mixtures. In addition to manufacturing, the company offers engineering services with CAE/CAD systems (EPLAN, ProE, Solidworks), grid calculations and grid analyses as well as installation, commissioning and maintenance. The systems for industry, plant engineering, energy suppliers and public-sector clients are delivered worldwide under country-specific standards, among others to Iraq and Saudi Arabia. Since 2025, the company has been part of VINCI Energies.
- Site
- Immendingen
- Processes
- Medium-voltage switchgear (Basis Block MC 1), Medium-voltage switchgear (Basis Block MC 3), Medium-voltage switchgear (Basis Block MC 3 S), Low-voltage switchgear (Vario Block TN), Low-voltage switchgear (Vario Block TN-S), Low-voltage switchgear (Vario Block TN-V), Protective enclosures indoor/outdoor (Energie Block TEB), Protective enclosures indoor/outdoor (Energie Block TEB-S)
- Materials
- Medium-voltage switchgear, Low-voltage switchgear, Protective enclosures indoor/outdoor, SF6-free technology, Engineering with EPLAN, ProE, Solidworks
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 14001:2015, ISO 9001, ISO 14001
- Founded
- 1919
- Industries
- Industry, Plant engineering, Energy suppliers, Public-sector clients
- 01
Customer support/consulting
- 02
Project management
- 03
Engineering (CAE/CAD)
- 04
Grid calculation/grid analysis
- 05
Manufacturing
- 06
Installation
- 07
Commissioning
- 08
Maintenance/service
Processes and Technology
Medium-voltage switchgear
Type-tested air-insulated, metal-enclosed switchgear (Basis Block MC 1, MC 3, MC 3 S) per IEC 62271-200, max. 24 kV, up to 4000 A.
Low-voltage switchgear
Highly flexible modular systems (Vario Block TN, TN-S, TN-V) per IEC 61439, max. 690 V, with fixed mounting or withdrawable design.
Protective enclosures indoor/outdoor
Systems for cast-resin transformers up to 2000 kVA (TEB, TEB-S) and neutral-point enclosures for outdoor installation.
SF6-free technology
Avoidance of climate-harmful substances such as SF6 or gas mixtures in medium-voltage production.
Engineering with EPLAN, ProE, Solidworks
Custom engineering based on type-tested standards as well as grid calculations (short-circuit, load flow, selectivity).
Locations
Immendingen
DEHeadquarters, administration and production
- Lot size
- Small to large projects, custom solutions
- Materials
- Metal-enclosed/metal-clad air-insulated switchgear
- Production hall 1600 sqm (as of 2007)
- Warehouse hall (since 2013)
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Medium-voltage switchgear (Basis Block MC 1)Assembly | – | – | – | – | Metal-enclosed, air-insulated |
| Medium-voltage switchgear (Basis Block MC 3)Assembly | – | – | – | – | Metal-enclosed, metal-clad, air-insulated |
| Medium-voltage switchgear (Basis Block MC 3 S)Assembly | – | – | – | – | Metal-enclosed, metal-clad, air-insulated |
| Low-voltage switchgear (Vario Block TN)Assembly | – | – | – | – | – |
| Low-voltage switchgear (Vario Block TN-S)Assembly | – | – | – | – | – |
| Low-voltage switchgear (Vario Block TN-V)Assembly | – | – | – | – | – |
| Protective enclosures indoor/outdoor (Energie Block TEB)Assembly | – | – | – | – | – |
| Protective enclosures indoor/outdoor (Energie Block TEB-S)Assembly | – | – | – | – | – |
| Neutral-point enclosures (outdoor enclosures)Assembly | – | – | – | – | – |
| Engineering (CAE/CAD project engineering, grid calculation/grid analysis)Engineering | – | – | – | – | – |
| Installation/commissioning/maintenanceAssembly | – | – | – | – | – |
Additional services
Quality
The quality management system is certified to DIN EN ISO 9001:2015; all switchgear also undergo type-tested standard tests (IEC 62271-200, IEC 61439) and, in part, separate arc-fault tests. Factory Acceptance Tests prior to delivery ensure product quality.
| Evidence | Immendingen |
|---|---|
| ISO 9001 | |
| ISO 14001 |
History
- 1919
Founded as a workshop for electrical installations and motor repair in Tuttlingen by Ernst Leukhardt
- Mitte 1950er
Reorientation: development and production of medium-/low-voltage switchgear and transformer protective enclosures
- 2001
Founding of Leukhardt Schaltanlagen GmbH, management Andreas Glunk and Stefan Walz
- 2002
Exit of the Haase Group
- 2004
Expansion of Leukhardt International with Karel Freudenthal
- 2005
Branch office in Tettnang, new building in Immendingen planned, Iraq market
- 2006
New administrative and production facility built in Immendingen, founding of Schwerin & Magdeburg
- 2007
Relocation to Immendingen: 700 sqm office, 1600 sqm production, 50 employees
- 2008
Expansion of Leukhardt International in Mexico
- 2009
Leukhardt family exits, first Iraq projects
- 2011
Closure of the Tettnang branch office
- 2013
New warehouse hall built, licensing partnership Saudi Arabia
- 2014
First products approved in Iraq
- 2015
Branch office Erbil, northern Iraq
- 2018
Stake in Leukhardt Systemtechnik Schwerin
- 2021
Stefan Walz exits, Andreas Glunk becomes sole managing director
- 2022
Closure of Erbil branch; Leukhardt International 100% Mexican shareholder
- 2024
Acquisition of Leukhardt Systemtechnik Schwerin by VINCI Energies
- 2025
Acquisition of Leukhardt Immendingen by VINCI Energies