EMC Testing Labs in Baden-Württemberg – Accredited Facilities

Black Forest Testlab OHG

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Black Forest Testlab OHG is an independent EMC test laboratory at Schachenweg 7 in Loeffingen-Unadingen in Baden-Wuerttemberg, accredited to DIN EN ISO/IEC 17025 by DAkkS under D-PL-22936-01-00 and recognised as a Konformitaetsbewertungsstelle (conformity assessment body). It positions itself around scheduling speed and process efficiency - 'EMV-Pruefung nach Ihrem Zeitplan' - running both accredited testing and development-accompanying tests on prototypes, small series and full production, with interference-suppression measures implemented outside the accreditation scope. The team works in standardisation committees and has delivered projects for the Kraftfahrt-Bundesamt as well as in medical technology, aviation, marine and multimedia. The RF system is a semi-anechoic chamber (SAC) supporting both 1 m and 3 m measurement distances, with biconical and STLP tunable log-periodic antennas. The equipment list reads as a modern automotive and avionics bench: a NetWave 67.5-400 three-phase AC/DC source covering IEC/EN 61000-4-13, -4-14, -4-27 and -4-28 plus -4-17 and -4-29 as a DC source, used for inverters, electric vehicles and avionics systems to DO-160, Airbus ABD0100 and Boeing specifications; a DPA 503N with AIF 503N75.4 for three-phase and single-phase harmonics and flicker; AutoWave four-channel transient waveform generation with the AutoWave-WR two-channel recorder; a VDS 200Q100.2-400 battery simulator covering 48 V, 24 V and 12 V at 100 A or more; a UCS 200N100.2 combining EFT/burst, micropulse and an integrated coupling network to 200 A with a FreeStyle mode for non-standard waveforms; an LD 200N high-energy load-dump generator for ISO 7637 and ISO 16750-2 including clipped pulses; and an ISO 7637-2 transient emissions setup with electronic and mechanical switches and an artificial network meeting ISO 7637-2, CISPR 25 / ISO 11452-4 and CISPR 16-1-2. Magnetic field work uses an AMP 200N2 low-frequency source for ripple and ground-shift noise to LV 123 and ISO 7637-4 pulse C plus MFG 40-100 and MFC 30 loops to 130 A/m per IEC 61000-4-8. Burst and surge use a Compact NX5 extendable to 200 A per phase with NX-series CDNs rated to 1,000 VDC / 3 x 690 VAC, and a PFS 503N63.2 three-phase power-fail simulator with six individually controlled semiconductor switches to 100 A. Conducted immunity spans an NSG 4060 (15 Hz - 150 kHz) for IEC/EN 61000-4-16 and -4-19, an NSG 4070C-LFCP for IEC/EN 61000-4-39 and EN 60601-1-2 magnetic field work plus 61000-4-3, -4-6 and -4-20, an NSG 4070 for BCI, and a CBA4K400M-100E-001 Class A amplifier for automotive and aviation BCI. Partner labs cover FCC radio approval (Ingenieurbuero Lenhardt), environmental testing (Labus) and KBA certification (ALEE).

E&C Testlab GmbH

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E&C Testlab GmbH (Engineering & Certification Testlab) at Industriestrasse 8 in Trossingen, Baden-Wuerttemberg, is a DAkkS-accredited EMC and environmental laboratory holding three partial accreditations under master certificate D-PL-19366-01-00: vehicle type approval EMC as a KBA Technical Service (-01-03), EMC on active medical devices and IVD equipment (-01-01), and EMC, telecommunications, electrical engineering and environmental testing (-01-02), plus a published test-method list for its flexible accreditation scope. The chamber estate is structured for automotive component work: three absorber chambers at 1 m measurement distance for automotive components, two absorber chambers at 3 m with turntable and vertical antenna positioning, three shielded cabins for non-radiated EMC tests, and - critically - every test facility is fitted with an HV filter rated 1,000 V / 250 A. A mode-stirred reverberation chamber covers 200 MHz to 7.12 GHz with BLN modulation for immunity, and a GTEM cell supports fast preliminary assessment during development. Two ESD rooms provide six discharge stations. The power test infrastructure is the standout: DC supply to 1,000 V or 1,000 A at a maximum 100 kW, burst and surge to 480 V AC at 125 A and up to 5.5 kV, harmonics and flicker with EUT power draw to 60 kW, and a dedicated automotive HV test system of 60 kW system power for EMC testing of e-mobility high-voltage components to ISO 21498-2, LV 123 and LV 148. High-voltage component testing runs under real HV operating conditions to 1,000 V and 250 A with BCI, ALSE and stripline immunity plus emissions, backed by HV safety infrastructure and accredited measurement procedures. As a KBA Category A Technical Service it performs UN-R 10 type-approval testing in its own facilities, directly usable for EU type approval without involving another test institute, and is accredited for the customer standards of BMW, Mercedes-Benz, VW, Toyota, Renault, PSA, Jaguar Land Rover, MAN, Scania, Volvo, John Deere and Caterpillar among others. Aviation and defence work covers DO-160, AECTP-500 and MIL-STD-461; medical covers IEC 60601-1-2 and IEC 61326-2-6 with reports recognised by Notified Bodies for MDR conformity. Environmental simulation, electrical testing and cybersecurity complete the portfolio.

ELMAC GmbH EMV-Labor

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ELMAC GmbH EMV-Labor J. Buehne is an independent EMC test laboratory at Boschstrasse 2 in Bondorf, Baden-Wuerttemberg, active in EMC testing since its founding in 1990 and accredited since 1993 - originally by the Deutscher Akkreditierungsrat (DAR) and maintained continuously since, with re-assessment by DAkkS for EMC and by the Zentralstelle der Laender fuer Gesundheitsschutz (ZLG) for medical technology. The ZLG involvement is worth noting: medical device EMC accreditation in Germany runs through ZLG rather than DAkkS alone, and ELMAC holds both. Since 2001 it has been a KBA-designated Technical Service, performing E1 type approval testing and handling the approval of vehicle components with the Kraftfahrt-Bundesamt. Testing stations comprise two absorber halls with 1 m and 3 m measurement distances covering emission and immunity to 6 GHz, an open-area test site with a 10 m measurement distance, a conducted emissions station covering AC, DC, telecommunication lines and load connections from 9 kHz to 30 MHz, and two shielded rooms for conducted immunity. Published limits are specific and honest about their constraints: surge to 4 kV and voltage dips and interruptions are single-phase only, as are the two harmonics and flicker stations; burst reaches 4 kV, conducted RF runs 10 kHz to 230 MHz, ESD to 30 kV, and power-frequency magnetic field immunity is standard to 30 A/m. BCI covers 2 MHz to 250 MHz, there is an automotive station for conducted transient immunity (pulses), near-field radiated immunity from 30 kHz to 13.56 MHz, and conducted asymmetric immunity from 0 Hz to 150 kHz. Recent accreditation additions cover IEC 61000-4-16, EN 60601-1-2:2015+A1:2021 (IEC 60601-1-2 Ed. 4.1) and EN 61000-4-39:2017, with non-accredited testing offered to ETSI EN 300 220-3. Product groups covered include industrial and scientific measurement and control equipment, medical technology, IT equipment, household appliances and hand-held power tools, automotive electrical/electronic sub-assemblies (EUB), lighting, and EMVU environmental field measurement. A customer workshop area is provided so clients can make small modifications and repairs to their equipment on site.

EMCE GmbH

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EMCE GmbH is an accredited EMC testing laboratory and engineering office for EMC testing and circuit development at Untere Wiesen 1 in Burgrieden, between Ulm and Biberach in Baden-Wuerttemberg. Its accreditation structure is the notable feature: DAkkS accreditation to DIN EN ISO/IEC 17025 under master certificate D-PL-12122-01-00, with five separate partial certificates - EMC and telecommunications (-01-01), ISED Canada (-01-02), FCC USA (-01-03), automotive/KBA (-01-04) and medical (-01-05). Holding discrete DAkkS partial accreditations specifically for FCC and ISED means North American market access can be handled from Burgrieden rather than routed through a US or Canadian laboratory, and the company is additionally recognised by the Bundesnetzagentur as a listed measuring station and as a conformity assessment body recognised by US authorities, with reports carried by the MRA and ILAC-MRA. The facility centres on a fully anechoic room with absorber material lining the ceiling, floor and walls, backed by alternative open-area test sites at 3 m and 10 m measurement distances, and a variable power supply rated 3 x 5,000 W or 1 x 10,000 W. Test procedures are validated in accordance with DIN EN 61326-1 for precise and reproducible results, and internal quality assurance documents and reviews every test operation. Named sector coverage spans automotive, medical, household appliances, IT and multimedia, radio, and industry and rail. Beyond measurement the company offers pre- and post-test engineering work including circuit and layout review and advice on device concept design, drawing on its own background in product development and circuit design - positioning itself as a laboratory that can diagnose and fix an EMC problem rather than only reporting it.

IEH - Institute for Power Transmission and High Voltage Technology, University of Stuttgart

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The Institut fuer Energieuebertragung und Hochspannungstechnik (IEH) at the University of Stuttgart, led by Prof. Dr.-Ing. Stefan Tenbohlen, offers its research facilities on the Vaihingen campus as contract testing services, and its centre of gravity is high-voltage engineering rather than EMC. The high-voltage hall performs AC withstand testing with simultaneous partial discharge measurement to IEC 60270, lightning and switching impulse voltage testing, capacitance and dissipation factor (tan delta) measurement, relative permittivity and dielectric loss characterisation of liquid and solid insulation, and breakdown and withstand testing - supported by dissolved gas-in-oil analysis with headspace sampling, insulation moisture determination and high-speed optical imaging for tracking particles in insulating fluid, a combination used for transformer condition assessment and fault diagnosis. Alongside that sits a power network group measuring supply quality against EN 50160 and testing controllers and protection devices in real-time hardware-in-the-loop environments. The EMC offering is deliberately scoped as pre-compliance: radiated and conducted emission and immunity measurement to the DIN EN 61000 series and electrostatic discharge resilience testing for CE marking purposes, backed by three-dimensional electromagnetic field simulation, which lets a coupling or emission mechanism be reproduced numerically as well as measured. As a university institute it holds no ISO/IEC 17025 accreditation and is recorded here without one; work is contracted as research and development service rather than accredited certification. Specialisations are power transformers and insulation diagnostics, grid and power quality measurement, protection and control device testing, and EMC simulation-led investigation.

Jakob Mooser GmbH / Mooser EMC Technik GmbH

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The Mooser group runs two DAkkS-accredited EMC laboratories - Jakob Mooser GmbH at Egling-Thanning south of Munich and Mooser EMC Technik GmbH at Ludwigsburg near Stuttgart - and has specialised for more than thirty years in the electromagnetic behaviour of high-voltage automotive drive systems. Its defining asset is the eCHAMBER test bench, of which the group operates four: purpose-built enclosures that let a traction inverter, electric machine, DC/DC converter or complete high-voltage powertrain be run under realistic electrical and mechanical load inside a controlled EMC environment, which is what makes emission measurement on a switching drive at full power meaningful rather than notional. A reverberation chamber complements the absorber facilities for immunity and shielding work. Service lines follow the electrified drivetrain end to end: traction battery and fuel cell stack EMC measurement, power-semiconductor and module-level emission characterisation, high-voltage cable and connector work, AC and DC charging system testing, and shielding effectiveness measurement on housings, cables and enclosures. Both laboratories hold DAkkS accreditation to DIN EN ISO/IEC 17025 and the group is a designated Technical Service of the German Federal Motor Transport Authority (KBA) for UN-ECE R10 type approval. Alongside measurement, Mooser provides EMC consultancy and interference-suppression design, which is how most customers use it - as a development partner that both finds the emission and specifies the filter or shield that fixes it. Specialisations are electric mobility and high-voltage powertrains, power electronics and semiconductors, and military, railway and industrial equipment.

KRIWAN Testzentrum GmbH

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KRIWAN Testzentrum, founded in 1997 at Forchtenberg in northern Baden-Wuerttemberg as the testing arm of the KRIWAN group, has grown into one of Germany's broader multi-sector compliance houses, combining EMC, environmental simulation, fire detection technology and construction product certification on one site. Its EMC facilities comprise a shielded cabin plus anechoic chambers configured for both the 3 metre and 10 metre measurement distances, with measurement to 6 GHz, radiated immunity fields to 400 V/m and magnetic field generation to 1000 A/m. DAkkS accreditation is held under D-PL-12091-01-00 with partial scopes -01-01 and -01-02 covering electromagnetic compatibility, environmental testing and fire detection technology, and the centre is a designated Technical Service of the German Federal Motor Transport Authority in categories A and D under KBA-P00042, which lets it issue E-mark test reports for UN-ECE R10 Rev. 6 and the agricultural and non-road directives 2009/64/EC, 2005/30/EC and 2009/19/EC. It is additionally a DAkkS-accredited certification body for construction products (D-ZE-12091-01-00) and a DIBt notified body (NB 1772), and holds permission under the German Explosives Act to handle pyrotechnic articles - the reason it can test airbag and restraint components. Accredited standards span automotive (CISPR 25, ISO 7637-2/-3, ISO 11452-2/-4/-5/-8/-9, ISO 10605, ISO 16750-2), agricultural, forestry and construction machinery (ISO 14982, ISO 15003, ISO 13766-1/-2), railway (EN 50155, EN 50121-3-2), fire and alarm systems (EN 50130-4, EN 54-25), marine and offshore (EN 60945 with ABS, BV and DNV type approval routes) and the industrial EN 61000-6 generic series. Specialisations are compressor and motor protection electronics, off-highway and agricultural machinery, fire detection systems, and marine equipment.

Nemko GmbH

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Nemko GmbH is the German arm of the Norwegian certification group founded in 1933, operating for more than twenty-five years from Pfinztal-Soellingen in the Karlsruhe technology region and serving roughly 20,000 German customers under managing director Jahn Stephansen. The laboratory holds DAkkS accreditation to DIN EN ISO/IEC 17025:2018 under D-PL-22131-01-01, with a flexible scope that lets it apply revised editions of a test standard without prior notification, and the accredited scope is notably wide: electromagnetic compatibility including basic standards, product family standards and maritime equipment; telecommunications covering ETSI radio and short-range device testing; electrical equipment safety spanning household appliances, luminaires, safety transformers, IT equipment and measurement and control devices; and functional safety of products. EMC facilities comprise a shielded cabin, GTEM and TEM cells for compact emission and immunity work, and a 3 metre anechoic hall. Nemko is a recognised conformity assessment body for the Bundesnetzagentur, a notified body under the medical device rules, and a BAuA-listed GS mark test body; through the wider Nemko network of laboratories across Europe, Asia, North America, the Middle East and Africa it routes customers to FCC, ISED and Asian market approvals from the same project. Services extend beyond the chamber to electrical installation inspection, on-site operational safety testing, cyber security assurance and management system certification. Specialisations are international market access, household appliances and lighting, wireless and telecom products, medical devices, industrial machinery, and maritime and offshore equipment.

Siemens EMC-Center Erlangen and Type Test Center Karlsruhe

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Siemens operates two DAkkS-accredited test centres under its Digital Enterprise Services banner, both accredited to DIN EN ISO/IEC 17025 and both open to external customers as well as internal product lines. The EMC-Center at Erlangen is organized into a Laboratory division and an Engineering division, the latter unusual in that it takes on field measurement, energy system simulation and on-site troubleshooting at customer installations rather than confining itself to chamber work. Its semi-anechoic chamber covers 150 kHz to 6 GHz for emission measurement with shielded cabins for immunity testing, and test programmes are run against IEC and EN standards, FCC requirements, the Korean KS C series, marine specifications and MIL-STD - a mix that reflects where Siemens equipment is sold. A particular strength is railway work: EMC and electromagnetic field measurement on rolling stock and on trackside and electrification infrastructure, including human exposure assessment. The Type Test Center at Karlsruhe complements this with environmental and mechanical qualification - climatic chambers of 600 to 1,500 litres covering minus 70 to plus 180 degrees Celsius and 10 to 98 per cent relative humidity, vibration to 100 g, shock, noise and drop testing - and carries a dense set of certification approvals: UL, FM, the IECEE CB Scheme, ATEX, IECEx, UKEX, CCC-Ex and marine type approvals, so explosion-protected and harsh-environment equipment can be qualified and certified in one place. Both centres offer test planning, approval consulting and EMC seminars. Specialisations are industrial and process automation equipment, railway vehicles and infrastructure, energy and switchgear systems, and explosion-protected apparatus.

emfeld GmbH

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emfeld GmbH, founded in March 2019 at Vaihingen an der Enz between Stuttgart and Karlsruhe and led by managing director Florian Dietze, was incorporated specifically for the analysis and evaluation of electromagnetic fields - its registered business purpose is the metrological detection of low- and high-frequency non-ionising radiation - and it has built an EMC test estate around that core in a remarkably short time. The facility runs absorber halls configured for both the 3 metre and 10 metre measurement distances plus a hall sized for large objects, an open-area test site, GTEM and TEM cells for compact emission and immunity work, and shielded cabins. Capability figures are strong for a laboratory of this age and size: measurement to 40 GHz, radiated immunity field generation to 600 V/m and magnetic field generation to 300 A/m - the 600 V/m figure putting automotive and aerospace high-field immunity work within reach rather than only the 10 and 20 V/m levels of the generic standards. Accreditation and designation cover DAkkS to DIN EN ISO/IEC 17025 for electromagnetic compatibility and separately under the medical device rules, designation as a Technical Service of the German Federal Motor Transport Authority (KBA) for vehicle approval, and recognition as a conformity assessment body by the Bundesnetzagentur. With fewer than fifty staff it operates as a specialist rather than a volume house. Specialisations are electromagnetic field and human exposure assessment, high-field immunity testing, automotive component approval, and medical device EMC.

hummel electronic, founded in 1975 and based at Fellbach-Schmiden on the north-eastern edge of Stuttgart, is a long-established EMC engineering practice that pairs a compact but comprehensively equipped measurement laboratory with design consultancy. Spectral analysis extends to 40 GHz, which is unusual for a laboratory of this scale and reflects a customer base that includes military and high-frequency work rather than only mains-powered consumer products. The service model is design-led: as well as qualifying a finished device, the firm works on EMC-compliant equipment design from the outset, develops shielding concepts, and designs filters and suppression circuits - so the measurement and the remedy come from the same engineers. An unusual additional line is the construction and verification of screened rooms, including facilities built for protection against unwanted signal emanation, work that sits closer to shielding engineering than to product compliance. Around the EMC work the laboratory runs environmental, climatic, vibration and shock testing with failure analysis, performs measurements on site at customer premises, and handles ecodesign and energy-related product verification alongside CE marking support. The company publishes no ISO/IEC 17025 accreditation certificate, so it is recorded here without an accreditation entry; customers use it principally as a development, diagnosis and pre-compliance resource. Specialisations are EMC-aware product design and shielding engineering, filter and suppression design, screened room construction and verification, and combined EMC and environmental qualification.