Railway cable assemblies for rolling stock and rail equipment
We work with manufacturers and integrators who need defined railway cable assemblies: assemblies, connectors and terminals for rolling stock and rail equipment, according to drawing, location, function and project requirements. This page is about the assembly and its documentation, not about cable by the metre.
What this industry needs
What railway cable assemblies demand
“Railway” does not by itself define the requirement for the cabling. The location of the assembly, its function and the installation conditions change which cable, which protection and which evidence are needed. On top of that comes the time horizon: a piece of rail equipment can be in service for decades, and a change of component can affect a prior validation or approval; that is why the relevant differences must be documented and validated by the customer where appropriate.
- Location of the assembly: inside equipment or a cabinet, on the vehicle or in an exposed area
- Environmental and mechanical exposure specific to that location
- Fire-behaviour requirements when the project defines them
- Expected installation, access and maintenance conditions
Industry requirements
Before quoting railway cable assemblies
Each project can require different criteria and they are confirmed with your documentation before quoting. If it defines requirements derived from EN 50343 —rules for installing cabling in rolling stock— or other applicable railway specifications, they are carried into the definition of the assembly and the selection of the manufacturer.
- Drawing, interface and function of the assembly
- Cable type and conductor cross-section
- Protection, identification and marking
- Railway requirements applicable to the project
- Documentation and traceability criterion agreed
Where we step in
Where our railway cable assemblies come in
Our role is supply and coordination: the specification and its validation are always defined by the customer, and the manufacturer makes the assembly and carries out the agreed checks.
On-board equipment and subsystems
Assemblies, connectors and terminals for equipment and subsystems installed on rolling stock, according to the specification of the manufacturer or integrator.
Equipment cabinets and modules
Interconnection inside cabinets, electrical enclosures or equipment modules, according to drawing, interfaces and project requirements.
Equipment in railway installations
Assemblies for equipment, modules and cabinets integrated into railway installations, always at the level of equipment defined by the customer.
Replacement and repeated series
Defined configurations that repeat over time, with advance notice if a part number enters obsolescence risk. Availability depends on the status of the manufacturer and of the part number at any given time.
What defines the assembly
What to define in railway cable assemblies
The location, the function of the assembly and the installation conditions determine which cable, which protection and which documentation the project needs. These three blocks are the ones worth closing before quoting.
Location and function
The location and the function of the assembly shape the requirements. Cabling inside a piece of equipment or a cabinet is not necessarily subject to the same conditions as cabling installed on the vehicle or in an exposed area.
Cable, protection and materials
Cable type, cross-section, protection, identification and materials must match the project specification. When there are fire-behaviour requirements, the evidence required for the materials concerned must also be defined.
Documentation and manufacturer
Traceability, certificates, reports and quality-system requirements must be defined before quoting. We check these needs with manufacturers able to make the assembly and provide the documentation required.
Related information
More about railway cable assemblies
How we work for this industry
How we coordinate railway cable assemblies
The first step is to know exactly what the project requires, before committing to anything.
You pass us the requirement
Which drawing, which location, which function and which railway or documentary requirements apply to your project, and what has to accompany each delivery.
We check with the network
We find out which manufacturers can really meet that requirement, with which materials and which documentation they can issue.
We confirm in writing
We set out in the quote what can be provided and what cannot, without taking any compliance for granted.
We supply with control
The manufacturer makes the assembly and carries out the agreed checks. Each delivery keeps the agreed traceability criterion and we warn of any change of part number or manufacturer. If a part number is no longer available, we compare potentially compatible alternatives: the relevant differences are documented and the customer validates the change before incorporating it where appropriate.
What we actually do in this industry
Justicia Marin is a distributor: it supplies components and coordinates assemblies through a network of manufacturers. We hold no qualifications, approvals or endorsements of our own in this sector, and we do not declare compliance with any specific standard in a generic way. When your project requires a certification, a qualified process or specific documentation, you tell us and we confirm before the order what the network can really provide and what falls outside our scope — in writing, in the quote. We are not qualified as a railway supplier and hold no sector approvals, and we do not claim compliance with any specific railway standard. If your project requires a material approved under a specific standard, we check it with the manufacturer before quoting and tell you clearly whether we can cover it or not. Nor do we carry out line installation, overhead catenary, electrification, signalling or railway civil works.
When the project defines fire-behaviour requirements — for example those derived from EN 45545-2 — the materials concerned and the evidence required for each must be identified; it is not a stamp that covers a complete assembly automatically. If the location is subject to specific shock or vibration requirements, these must form part of the specification and of the checks requested from the manufacturer. And if the project requires manufacture by a manufacturer with ISO 22163 or other customer-specific requirements, that condition is confirmed before quoting.
Questions from the rail sector
Railway cable assemblies: frequently asked questions
- Which railway cable assemblies do you supply for the rail sector?
- Assemblies, harnesses, connectors and contacts for equipment and subsystems in rolling stock, for cabinets and equipment modules and for equipment integrated into railway installations. They are made to the specification of the manufacturer or integrator by a manufacturer that we select; Justicia Marin coordinates delivery and documentation.
- Which standards are relevant for cabling in rolling stock?
- A commonly used reference is EN 50343, with rules for installing cabling in rolling stock, alongside the manufacturer’s specifications. Which requirements apply is determined by the project; we include them in the specification sent to the manufacturer and confirm which documentation can be supplied.
- Does EN 45545-2 automatically cover the whole cable assembly?
- No. Fire-behaviour requirements apply per material and per application, not as a stamp on a complete assembly. For every material concerned it must be fixed which evidence is needed. Before the quote we confirm which evidence the manufacturer and the material makers can provide.
- Is Justicia Marin a qualified railway supplier?
- No. We hold no qualifications or approvals of our own in the rail sector and do not claim conformity with specific standards. If your project requires a manufacturer with ISO 22163 or other requirements, we include that as a selection criterion and confirm in writing what that manufacturer can demonstrate.
- How do you deal with the long life of railway equipment?
- Every configuration is recorded per part number and revision, so that repeat deliveries years later are still identical. If a component threatens to become obsolete, we report it in good time and compare alternatives. The relevant differences are documented and the customer validates the change before it is introduced.
- What do you need to prepare a quote?
- The drawing or specification of the assembly, the location and function in the vehicle or installation, cable type and cross-section, requirements for protection, marking and fire behaviour, the documentation and traceability required, the quantity and expected repeat orders. If anything is missing, we ask for it before approaching any manufacturer.
- Do you also carry out installation on the track?
- No. We do not carry out track laying, overhead lines, electrification, signalling or other railway civil works. Our scope is the supply of assemblies, components and documentation at equipment level, according to the specification that the customer fixes and validates. Installation and commissioning in the vehicle or the installation remain with the customer or its installer.
Does your railway project have defined requirements?
Which railway requirement applies to your project?
Tell us the drawing, the location and the railway or documentary requirements your project applies. We check with the network what can be covered and tell you in writing before you commit to anything.
What you can send us
- Bill of materials or part numbers (Excel, PDF or text)
- Drawing or schematic for custom assemblies (PDF, DXF or similar)
- Estimated quantity and expected repeat orders
- Technical and documentary requirements the assembly must meet
- Required standards or documentation
- Target delivery date
Tell us what you need to buy
We reply in writing with what we have been able to confirm.