Lütze Transportation
Lütze Transportation is a German supplier of control electronics, interface components and signal modules for rail vehicles, serving European vehicle builders and operators from Weinstadt near Stuttgart.
Lütze Transportation GmbH was formed in 2012, when the transportation division of the Lütze Group was reorganised into a separate company. The group itself was founded in Weinstadt in 1958 by Friedrich Lütze, and according to the company, rail components have been part of its programme for more than 35 years.
The international Lütze Group, including Lütze Transportation, was acquired by the US-listed Amphenol Corporation on 1 October 2024. The company continues to operate from Weinstadt under its own name.
Products for rail vehicles
The portfolio covers control technology, interface components and optical and acoustic signal devices designed for onboard use under EN 50155 conditions. Control products include the LION remote I/O system and the LION microPLC logic module for decentralised applications on rail vehicles.
The LOCC-Box Rail current monitoring device and the LUNA modular control system both record the current drawn by connected loads — lighting, door drives, sanitary modules, actuators — and pass that data to the vehicle control system over a TRDP Ethernet gateway. Persistent deviations from rated values can then be read as a developing fault, which is the basis for the company’s predictive maintenance functions.
For onboard data networks, the company supplies the LEOS family of Ethernet switches, rated 10/100 Base-TX. The TLM-10 train line modem carries Gigabit Ethernet across vehicle couplings, in both new and retrofitted vehicles.
In 2019, Lütze Transportation acquired the passenger information division of Picaso Systems in Cologne. This added passenger information displays, intercom systems for passengers and drivers, announcement systems and signal generators to the range.
Market position
The company’s quality management system meets ISO 22163:2023 / IRIS Rev. 04 (International Railway Industry Standard). According to the company, it was among the first companies worldwide to be certified to IRIS, in 2006, and its equipment is used in vehicle types ranging from commuter, metro and tram fleets to freight locomotives and high-speed trains, including maintenance vehicles operating in the Gotthard Base Tunnel.
Lütze Transportation joined UNIFE, the European rail supply industry association, in June 2025.
Current activity
The company extended its digital systems and software portfolio in May 2026 with the LÜTZE Config tool, which replaces the separate programs previously needed to parameterise programmable time relays, LCON converters and threshold switches, and piezo signal generators.
In June 2026, it introduced a 60 W USB-C charging system with Power Delivery 3.2 for driver’s cabs and compact control cabinets, built around a DC/DC converter with an input range of 24 V to 110 V DC for use in both diesel and electric vehicles.
Earlier in 2026 the company added an impulse relay that retains its last switching state without a permanent supply, reducing the standby current draw such devices otherwise place on the onboard battery of a parked vehicle, and a four-changeover relay module 22.5 mm wide for railway applications.
Lütze Transportation exhibits at InnoTrans 2026 in Berlin (22–25 September), in Hall 27, Stand 650.
