What Autronic does

Autronic, legally Autronic Steuer- und Regeltechnik GmbH and now operating under the FORTEC Power brand of FORTEC Elektronik AG following an intra-group merger effective July 1, 2025, is a German specialist in railway-grade DC/DC and AC/DC power conversion. Founded in 1973 with approximately 50 years of accumulated know-how, the company designs and manufactures EN 50155-compliant power conversion products for rolling stock onboard applications. Its core technology centers on ultra-wide input range DC/DC converters covering 14.4V to 154V in a single device, eliminating the need for customers to qualify multiple variants to support the various European onboard voltages (24V, 36V, 72V, 110V) within their ±40% tolerance envelope. Products are organized into the HFBC (30W–500W, chassis/wall/potted), HFC (100W–200W), AER (3W–75W, quarter-brick) and ACR series, with variants differing in mounting, output configuration, and environmental hardening. The portfolio is complemented by custom-specific DC/DC, DC/AC, and AC/DC power supply development and by EMS services for outsourced assembly and testing.

The business operates as a division of listed German electronics group FORTEC Elektronik AG, with primary engineering and production in Sachsenheim (Baden-Württemberg) and additional manufacturing in the Czech Republic. Revenue streams comprise hardware sales of standard DC/DC converters, project-based custom power supply development (quote-based, concept-to-series), and EMS services. Go-to-market combines direct enterprise sales against a request-a-quote system with a global distributor network of approximately 20 regional partners spanning Western/Eastern Europe, the Americas, China, India, Singapore, and Australasia; tier-1 partners include Arrow Electronics (pan-European) and Telerex (Belgium/Netherlands). Key certifications include ISO 9001 (since 1993), EN 50155, EN 50121-3-2, EN 61373, EN 45545-2 (HL3/R24/R25), REACH, RoHS, and conflict-minerals compliance. Jörg Traum serves as Managing Director of FORTEC Power GmbH.

Name

Autronic

Legal name

Autronic Steuer- und Regeltechnik GmbH

Website

https://autronic.de

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

11–50 employees

Short description

Autronic, operating as FORTEC Power within FORTEC Elektronik AG, is a German specialist that designs and manufactures EN 50155-compliant DC/DC converters (30W–500W, 14.4V–154V ultra-wide input) for railway vehicle manufacturers and system suppliers, with global distribution since 1973.

Ownership category

akta.pro rank

Product category

Railway Power Supplies

NAICS

Power, Distribution, and Specialty Transformer Manufacturing (335311), Electrical Equipment Manufacturing (3353), Electrical Equipment Manufacturing (33531)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Power, Distribution & Specialty Transformers (3612), Railroad Equipment (3743)

akta.pro primary industry

DC-DC Converters & Power Modules (Isolated/non-isolated, POL modules) (IMAGADAB)

akta.pro secondary industries

DC-AC Inverters (Industrial inverters, standalone/embedded) (IMAGADAC), High-Voltage & High-Power Conversion (HVDC supplies, traction/rail converters, large rectifiers) (IMAGADAH), EV Power Electronics & Drivetrain Electrification Service (Inverters, DC-DC, eAxles) (TLAKAMAI)

Keywords

• Railway power supplies
• DC/DC converters
• Rail vehicle electronics
• Custom power systems
• Industrial power conversion

Headquarters

HQ city

Sächsenheim

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Technology or R&D, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Standard DC/DC Power Converters: Sale of standard DC/DC converters including HFBC (High-Frequency Brick Converter) and HFC series with power ratings from 10W to 500W for railway and industrial applications.
2. Custom Power Supply Systems: Custom-specific power supply system development and manufacturing (DC/DC, DC/AC, AC/DC solutions) from concept through series production for railway manufacturers and suppliers.
3. EMS Services: Electronics Manufacturing Services including development, assembly, and testing of custom circuit boards through outsourcing partnerships.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Autronic develops, produces, and sells railway-grade DC/DC converters (ranging from 10W to 500W) with ultra-wide input voltage ranges (14.4V to 154V) for use in locomotives, multiple units, signaling equipment, and onboard rail systems. The company also develops custom-specific power supply systems (DC/DC, DC/AC, and AC/DC solutions) from concept through series production, and provides Electronics Manufacturing Services (EMS) including development, assembly, and testing of custom circuit boards through outsourcing partnerships. All products are EN 50155 compliant for railway rolling stock applications.

Product overview

Autronic, operating under the FORTEC Power brand, provides a comprehensive portfolio of power supply solutions primarily focused on railway and industrial applications. The core product line consists of DC/DC converters organized in multiple series: the HFBC series (high-frequency, compact) ranging from 30W to 500W with ultra-wide input ranges (14.4V-154V or 43V-154V); the HFC series (high-frequency, compact) from 100W to 200W; the AER series (aerospace/railway grade) from 3W to 75W; and the ACR series for robust railway applications at 150W. All products feature EN 50155 and EN 50121-3-2 railway compliance, with variations in mounting options (chassis, wall, DIN rail), output configurations (single/dual), and environmental ratings. The portfolio is complemented by custom power supply development services and EMS (Electronics Manufacturing Services) for outsourced development, production, and testing. The company operates as part of the FORTEC Group with manufacturing facilities in Germany (Sachsenheim) and Czech Republic.

Differentiator

Problem solved

Functional benefit

Brands

• AUTRONIC: Established brand for railway-grade DC/DC converters and power supply systems
• HFBC Series
• HFC Series
• AER Series
• ACR Series

Products and services

• HFBC30-W/O 30W DC/DC converter with ultra-wide input range (14.4V to 154V) for railway and transport applications. Compact chassis mounting (90.5mm x 54mm x 26mm) delivers 30W permanently without derating, features OT6 temperature class, continuous short-circuit protection, and EN 50155 compliance for railway onboard power supply.
• HFBC60-W/Ks 60W DC/DC converter with ultra-wide input range (14.4V to 154V) for harsh railway environments. Potted version with superior vibration resistance, OT6 temperature class, -40°C to +85°C operation, active reverse polarity protection, and compliance with EN 50155 and EN 50121-3-2.
• HFBC100-W/Ks 100W potted DC/DC converter with ultra-wide input range (14.4V to 154V) for global railway applications. Fully encapsulated design offers vibration resistance up to 5.72 m/s², shock resistance up to 50 m/s², efficiency up to 93%, active reverse polarity protection, and compliance with EN 50155, EN 50121-3-2, and EN 45545-2.
• HFBC250-W/G (HFBC250-2DW/O) 250W galvanically isolated DC/DC converter with ultra-wide input range (14.4V to 154V) and dual output (12V/24V main and 5V auxiliary). Designed for railway applications with EN 50155 and EN 50121-3-2 compliance, featuring 10ms hold-up time and conformal coating for harsh environment operation.
• HFBC500-2D/O 500W DC/DC converter with ultra-wide input range (43V to 154V) for power-hungry railway applications. Offers main output voltage plus auxiliary 5V (5W), compliant with EN 50155 and EN 50121-3-2 in a compact flat design for onboard rail systems.
• HFC100-W/O; W/G 100W DC/DC converter with ultra-wide input range (14.4V to 154V) for wall mounting in railway applications. Covers all international onboard voltages (24V to 110V) with ±40% tolerance, features 10ms hold-up time, active inrush current limitation (10A), and efficiency up to 92%.
• HFC150-W 150W DC/DC converter for wall mounting and 19" racks with ultra-wide input (14.4V to 154V). Covers all international rail vehicle voltages (24V, 36V, 72V, 110V) including ±40% tolerance per EN 50155. Features include redundancy operation, LED status indicator, and EN 45545-2 fire protection compliance.
• HFC150-W/G 150W DC/DC converter with ultra-wide input range (14.4V to 154V) for railway and demanding industrial applications. Features galvanic isolation, chassis mounting, comprehensive protection (OCP, OVP, OTP), and 10ms hold-up capability. Available in single (24V, 48V) and dual (±15V, ±24V) output versions.
• HFC200-W/O; W/G 200W DC/DC converter with ultra-wide input voltage range (14.4V to 154V) suitable for all international onboard power supply voltages (24V to 110V). Features include 10ms hold-up time, active reverse polarity protection, and compliance with EN 50155 and EN 50121-3-2 for railway applications.
• AER50 50W DC/DC converter with wide input range (4:1 ratio) supporting 72V or 110V nominal voltages including ±40% tolerance. Compact design with up to 92% efficiency for railway, industrial, and telecom applications. Features include reinforced insulation (I/O 3000VAC) and EN 50155 compliance.
• AER50-W 50W high-performance convection cooled DC/DC converter with ultra-wide input range (10:1 ratio, 14-160V). Quarter brick format (57.9mm x 36.8mm x 12.7mm) designed for railway, industrial, and telecom applications. Features include 89% efficiency, remote on/off, and EN 50155 compliance.
• ACR120/Ks 150W compact fully potted DC/DC converter for demanding railway applications. Wide 4:1 input voltage ranges (14-36V and 66-154V) covering nominal 24V and 110V railway voltages per EN 50155. Features include 93% efficiency, 10ms hold-up time (Class S2), and EN 45545-2 (HL3, R24/R25) fire protection compliance.
• HPC10-W/O 10W DC/DC converter with classic quarter-brick pinout and ultra-wide input range (9V to 154V). Features modern topology with full filtering to EN 50121-3-2 for railway applications.
• Custom Power Supply Systems (Kundenspezifische Stromversorgung) Custom-specific power supply system development and manufacturing including DC/DC, DC/AC, and AC/DC solutions for complex railway and industrial applications. Development from concept through series production to repair, serving railway manufacturers and suppliers with tailored power conversion solutions.
• EMS Services (EMS-Dienstleistung) Electronics Manufacturing Services including development, production, and testing of custom assemblies through outsourcing partnerships. Supports customers in the realization of special, individual electronic modules for railway and industrial applications.

Quantifiable outcome

• No derating required across full -40°C to +85°C temperature range at rated power
• +2 more outcomes

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

20 partnerships are on record, tiered core, flagship and regional.

• Arrow Electronics (Europe)coreChannel Partner/ Reseller/ DistributorArrow Electronics serves as a major pan-European distributor for FORTEC Power/AUTRONIC products, handling sales in Sweden, Spain, and Portugal regions. Arrow is a global Fortune 500 electronics distribution company providing broad market access for AUTRONIC DC/DC converters.
• Telerex (N.V. and Nederland BV)coreChannel Partner/ Reseller/ DistributorTelerex serves as a distributor for AUTRONIC products in Belgium and Netherlands regions. Two entities: Telerex N.V. (Antwerp, Belgium) and Telerex Nederland BV (Breda, Netherlands).
• FORTEC Power GmbH (Austria)coreChannel Partner/ Reseller/ DistributorFORTEC Power GmbH in Vienna serves as the Austrian distributor and partner for AUTRONIC products, leveraging the FORTEC Group network.
• FORTEC Switzerland AGcoreChannel Partner/ Reseller/ DistributorFORTEC Switzerland AG serves as the Swiss distributor for AUTRONIC products, located in Würenlos with additional contact at Exista AG Power Supplies in Mönchaltorf.
• FORTEC Technology UK LtdcoreChannel Partner/ Reseller/ DistributorFORTEC Technology UK Ltd serves as the UK distributor for AUTRONIC products, located in Huntingdon with coverage across Great Britain.
• FORTEC Group (FORTEC Elektronik AG)flagshipStrategic or Co-development PartnerFORTEC Power operates as a division of FORTEC Elektronik AG, a German listed electronics group. The company benefits from the FORTEC Group network including FORTEC Integrated (embedded systems, industrial displays, monitors), FORTEC Power GmbH in Rieststadt, and subsidiaries in Switzerland, UK, and Czech Republic. The merger of AUTRONIC Steuer- und Regeltechnik GmbH with FORTEC Power GmbH was completed on July 1, 2025.
• Scanpotec ApS (Denmark)regionalChannel Partner/ Reseller/ DistributorScanpotec ApS serves as the Danish distributor for AUTRONIC products, located in Sorø, Denmark.
• Cru Power Oy (Finland)regionalChannel Partner/ Reseller/ DistributorCru Power Oy serves as the Finnish distributor for AUTRONIC products, located in Jorvas, Finland.
• DICEL ELECTRONICS (France)regionalChannel Partner/ Reseller/ DistributorDICEL ELECTRONICS serves as the French distributor for AUTRONIC products, located in Frontonas, France.
• Dimac Red S.R.L. (Italy)regionalChannel Partner/ Reseller/ DistributorDimac Red S.R.L. serves as the Italian distributor for AUTRONIC products, located in Biassono (MB), Italy.
• Advantec Electronics BV (Netherlands)regionalChannel Partner/ Reseller/ DistributorAdvantec Electronics BV serves as a Dutch distributor for AUTRONIC products, located in Oudenbosch, Netherlands.
• Exista AG Power Supplies (Switzerland)regionalChannel Partner/ Reseller/ DistributorExista AG Power Supplies serves as a Swiss distributor for AUTRONIC products, located in Mönchaltorf, Switzerland.
• Olfer S.L. (Spain/Portugal)regionalChannel Partner/ Reseller/ DistributorOlfer S.L. serves as a distributor for AUTRONIC products in Spain and Portugal, located in Alcobendas, Madrid.
• Aztec Global Solutions Inc. (USA)regionalChannel Partner/ Reseller/ DistributorAztec Global Solutions Inc. serves as the US distributor for AUTRONIC products, located in Vista, California, USA.
• Alltronic s.r.o. (Czech Republic)regionalChannel Partner/ Reseller/ DistributorAlltronic s.r.o. serves as the Czech distributor for AUTRONIC products, located in Dýsina, Czech Republic.
• OEM AUTOMATIC SP. Z O.O (Poland)regionalChannel Partner/ Reseller/ DistributorOEM AUTOMATIC SP. Z O.O serves as the Polish distributor for AUTRONIC products, located in Warsaw, Poland.
• Foo Kee Electronics Limited (China/Hong Kong)regionalChannel Partner/ Reseller/ DistributorFoo Kee Electronics Limited serves as the Chinese/Hong Kong distributor for AUTRONIC products, located in Chai Wan, Hong Kong.
• Unified Electro-Tech Ltd (India)regionalChannel Partner/ Reseller/ DistributorUnified Electro-Tech Ltd serves as the Indian distributor for AUTRONIC products, located in Bangalore, India.
• Precision Technologies PTE LTD (Singapore)regionalChannel Partner/ Reseller/ DistributorPrecision Technologies PTE LTD serves as the Singapore distributor for AUTRONIC products, located in Singapore.
• Helios Power Solutions Ltd (New Zealand)regionalChannel Partner/ Reseller/ DistributorHelios Power Solutions Ltd serves as the New Zealand/Australasian distributor for AUTRONIC products, located in Auckland, New Zealand.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Absopulse Electronics: Canadian specialist in railway and industrial-grade DC/DC converters and inverters with EN 50155-compliant product lines. Comparable as a niche specialist serving rail OEMs with custom and standard power solutions.
• MTM Power: German manufacturer of railway-grade DC/DC converters and power supplies with similar EN 50155-compliant product families. Closest direct competitor in geography, product category, and customer base.
• Schaefer Power Systems: Designs and manufactures rugged DC/DC converters and inverters for railway, industrial, and military applications. Directly comparable on railway-grade power conversion and global rail customer focus.
• SynQor: US-based manufacturer of high-efficiency DC/DC converters for military, aerospace, and rail markets with similar ruggedized, EN 50155-aligned product positioning. Comparable technology and customer overlap in transit and rail electronics.

Broad incumbents

• XP Power: Global power supply manufacturer with railway, industrial, and healthcare product lines including EN 50155-compliant converters. Competes with Autronic in higher-wattage rail applications and provides scale-based pricing pressure.
• PULS Power: German-headquartered specialist in industrial DIN-rail power supplies expanding into railway and transportation markets. Comparable engineering quality and German Mittelstand positioning, with overlap in ruggedized power conversion.
• TDK-Lambda: Global leader in industrial and railway-grade power supplies with an extensive EN 50155-compliant product range. Competes with Autronic across railway applications while serving many other verticals, providing scale and breadth advantages.
• Powerbox (Cosel Group): Acquired by Cosel, Powerbox supplies ruggedized and railway-grade AC/DC and DC/DC power supplies across Europe. Overlaps directly with Autronic in rail converters but operates at much larger scale with a broader portfolio.

Emerging players

• RECOM Power: Austrian-headquartered manufacturer of DC/DC converters and AC/DC power supplies with growing railway and industrial certified product lines. Comparable on converter technology but typically serves lower-power and broader-market applications.
• Mornsun: Chinese manufacturer of AC/DC and DC/DC converters expanding into rail and industrial markets with competitively priced EN 50155-targeted products. Represents the low-cost competitive threat from Asia in Autronic's niche.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/AutronicGmbH
• Facebookfacebook.com/Autronic-Steuer-und-Regeltechnik-GmbH-239197869873028
• LinkedInlinkedin.com/company/autronic-steuer--und-regeltechnik-gmbh

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Autronic