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In every industry, compliance drives reliability - and in highly regulated sectors it’s strictly audited to defined standards. Custom wiring solutions ensure every connection, component and panel is built to specification, rigorously tested, and delivered ready to perform and comply.

Whether you operate in automotive, defence, rail, renewable energy, aerospace, advanced manufacturing, or any other industry, wiring is a critical element - and it isn’t just about connecting components. It’s about transferring electrical power safely and efficiently, integrating seamlessly, and ensuring reliable performance - and ideally doing it better than your competitors are - all whilst remaining compliant.

Bespoke solutions give businesses the flexibility to design for their exact environment, while still satisfying industry-specific and location-specific compliance requirements - a combination which off-the-shelf, 'one-size-fits-all' wiring looms or assemblies can’t always achieve.

At Tec-Stop, we combine technical expertise and advanced machinery, along with deep understanding of regulatory adherence, to provide clients across the UK with advanced bespoke wiring solutions that are not only reliable and effective, but also fully compliant with sector-specific rules.

Wondering if a bespoke solution is just what your business needs too? Read on to discover more.

Technician assembling custom cable harness with colour-coded wiring for industrial electrical panel compliance.
Advanced machinery guarantees accuracy and repeatability, reducing waste and ensuring every cable meets compliance standards.

What is custom wiring?

A custom wiring solution – often referred to as a bespoke wiring solution – is built to match the precise requirements of your application. Unlike general wiring or pre-made harnesses, a customised approach is engineered to fit the available space, system requirements, reduce installation time, and conform to location and industry-specific standards.

For example:

  • In defence projects, solutions may need to satisfy BS standards to ensure operation in harsh, high-risk environments.
  • In automotive, assemblies must be designed for vibration, dust, and ingress protection, with cores organised and protected to improve both safety and installation efficiency.
  • In renewable energy, panels and sub-systems must demonstrate continuous efficiency and provide traceability for audits.
  • In rail, wiring and cable assemblies must withstand constant vibration and environmental change while passing rigorous safety checks.

This precision ensures every component, connection and wire is produced and assembled to specification, tested to guarantee performance, and delivered on time. Custom solutions are also used in industrial applications such as automation, HVAC, and smart building systems, where designs must align with demanding UK and EU compliance frameworks.

What does custom wiring usually include?

By design, bespoke wiring is flexible; however, in regulated sectors, most solutions include these core components - plus the associated test and traceability documentation.

Cable assemblies and cable harnesses

Well-designed cable assemblies and cable harnesses organise wires for easier install and smoother production. By grouping cables to specific lengths, they reduce faults and cut fitting time. A cable harness can also be modular for serviceability, and a cable assembly can be specified to standardise interfaces. Harnesses also provide neat routing for thousands of cores, ideal for complex applications across multiple sectors and industry settings, and are always checked in line with ISO and BS EN standards.

Control panels and controllers

Control panels are central to many operations, housing controllers and sub-systems that regulate energy distribution. Bespoke units allow clients to address niche specifications and ensure compliance, whether the programme involves low-voltage assemblies, renewable installations, or high-performance industrial products.

Compact electrical enclosure with fused circuits and neatly arranged custom wiring harness.
Even the smallest enclosures are engineered for compliance, safety, and long-term performance.

Battery cables and HV cables

Battery cables and HV cable assemblies are essential for safely transferring energy in high-demand environments. Using the right connections, insulation, and protective technology means they can perform reliably without overheating. These are critical in the automotive and EV sectors, where compliance is key for certification and insurance.

Additional common components

  • Cables and conductors: specified by voltage/current, temperature rating, shielding, jacket, and length; identification via markers or heatshrink.
  • Connectors and terminals: TE, Molex, Deutsch, MIL-spec, circular and blade types; correct crimp tools and pull-test validation.
  • Cable looms: bundling, strain relief, grommets, boots, conduit (split/solid), sleeving and protective heatshrink.
  • Protection and distribution: fuses, breakers, relays, contactors, busbars, PDUs, earthing and bonding hardware.
  • Control panels and controllers: DIN-rail devices, PLCs, PSUs, I/O, HMIs, enclosures, glands and gland plates, labels and legends.
  • HV and battery cables: insulation systems, terminations, sealing and creepage/clearance management.

Documentation and testing

  • Drawings & BoM: schematics, harness boards, wire lists, connector pin-outs, revision control.
  • Traceability pack: serials, batch/lot codes, materials certificates, terms of conformity.
  • Testing evidence: continuity, insulation resistance, dielectric/hi-pot testing, torque logs, crimp height, pull-test results, visual inspection records.
  • Compliance file: standards matrix (project spec), exposure assessment, and sign-off.

Clear component scope plus a robust document set shortens installation effort on site, supports audits, and gives your team confidence that each solution is right first time.

Compliance and building to specification

Compliance is the backbone of safe, high-quality systems across every sector. We specialise in ensuring assemblies, harnesses, and panels are built in line with regulations across every sector.

That could include:

  • Designing harnesses for automotive systems in line with BS and ISO requirements.
  • Building panels for renewable programmes with strict moisture-protection measures.
  • Creating assemblies for aerospace where weight, space, and performance are tightly regulated.
  • Supplying industrial programmes with testing documentation, traceability records, and adherence to UK health and safety law.

This compliance-first approach reduces exposure and reassures clients that each product will pass inspection – whether it’s an ISO audit, a BS verification, or an industry-specific regulatory review.

Custom-built control panel with relays, labelled terminals, and organised wiring for regulated industry applications.
Bespoke control panels bring order, efficiency, and reliability to complex systems – all built in line with industry standards.

Global compliance standards at a glance

UK & EU

  • ISO 9001 and UKCA/CE with Low Voltage and EMC directives.
  • RoHS / REACH for materials compliance.
  • BS EN 60204-1 (machinery electrical safety), BS EN 61439 (LV switchgear/assemblies), EN 45545 & EN 50155 (rail), ATEX/IECEx (hazardous areas).

United States

  • UL 508A (industrial control panels), UL/CSA component listings, NFPA 79 (industrial machinery), NEC (electrical rules).
  • IPC/WHMA-A-620 (acceptability of cable assemblies and wire harnesses). Many cable assemblies are also validated to OEM terms before release.

Automotive (global)

  • IATF 16949 (automotive robustness), ISO 26262 (functional safety), ECE R100 (EV battery/HV safety), OEM PPAP/APQP.

Aerospace & defence

  • AS9100 (aerospace robustness), DO-160 (environmental), MIL-DTL/MIL-STD connector and testing families, project-specific British Standards / EN / IEC cross-references.

Here at Tec-Stop, we design and build to the standards you specify. Share the target market and governing body in your industry, and we’ll map the applicable clauses and include a standards matrix in your compliance pack suitable for production release.

Advanced processes that improve performance

We truly believe that reliable, effective electrical performance depends on the accuracy of every stage of design and manufacture. We invest in specialist cutting machines, tools, advanced ultrasonic welders, and insulation technology to keep each connection consistent and each cable termination repeatable.

Key processes include:

  • Cable cutting to exact length, reducing waste and supporting production throughput
  • Strip crimp and termination for secure, compliant electrical connections
  • Heatshrink cutting and protective sleeving to prevent ingress protection failures
  • Conduit cut and split to add durability in harsh conditions

Every step is traceable, checked, and documented, giving your clients and regulators confidence that bespoke Tec-Stop assemblies will perform in the toughest applications.

Automated wire cutting and stripping machine producing precision wiring assemblies for bespoke electrical solutions.
Advanced machinery guarantees accuracy and repeatability, reducing waste and ensuring every cable meets compliance standards.

Can Tec-Stop design and build to non-UK requirements?

While our work is always governed by UK law and safety obligations (e.g., UKCA/CE where applicable), we can design and build to additional non-UK standards provided they do not conflict with UK requirements. Where conflicts exist, we’ll surface them quickly and propose a compliant, practical route.

How we approach it

  • Standards mapping: We create a standards matrix against the target market (e.g., UL 508A, NFPA 79, NEC, CSA, IEC/EN, DIN, JIS, AS/NZS, IATF 16949, ISO 26262, ECE R100 for HV, etc.).
  • Gap & conflict check: If any clause conflicts with UK obligations, we flag it early and agree the path - often the stricter requirement or separate market variants.
  • Approved components: We select parts with the correct recognitions/listings (e.g., UL Recognized, CSA, IECEx/ATEX where relevant).
  • Test & evidence: We align creepage/clearance, hipot levels, colour codes (where permitted), labels/nameplates, and documentation to the destination standard.
  • Certification support: We prepare the technical file and can support Notified Body/NRTL engagement; final certification remains with the relevant authority.

Why choose Tec-Stop as your wiring partner

As a trusted UK-based provider, we're proud of our reputation for excellence across the country and beyond - because it means we can pass this reassurance onto our valued clients. Partnering with us, you can expect:

  • A proven commitment to quality, robustness, compliance, and service
  • Efficient, cost-considered assemblies ideal for both low- and high-volume production runs
  • Made in Britain with ISO 9001 quality assurance
  • Solutions designed to assist with complex projects and niche applications
  • A dedicated specialist group focused on design, manufacture, and on-time delivery
  • Responsive service and support at every stage, plus clear production release gates and a service wrap that scales

Whether it’s ISO 9001 for quality, ISO 14001 for environment or ISO 45001 for safety, our approach is the same: define the standard, map it to the build, and leave an evidence trail your auditors can follow in minutes.

Sam Stiley
Managing Director

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Frequently asked questions

Are custom wiring solutions cost effective compared to general wiring?

Yes. While the initial design is bespoke, savings are made in shorter installation effort, improved efficiency, and longer-lasting products.

What role does a cutting machine play in cable production?

Using specialist cutting equipment means each wire is produced at the exact correct length, which improves efficiency, reduces waste, and guarantees assemblies meet spec. Modern automatic cut/strip equipment is about accuracy, repeatability, and traceability. Servo-driven feeders with encoder feedback control length tightly (typically ±0.5–1.0 mm for short leads up to ~1 m, and around ±0.1–0.2% of length on long runs), while strip heads hold insulation strip length to roughly ±0.2–0.5 mm depending on jacket and gauge. That precision boosts efficiency, reduces waste, and helps assemblies meet the build specification without rework. On the line, our process combines precision cutting and stripping with built-in process control, ensuring conductor protection and consistent accuracy. In-line marking and labelling make kitting straightforward, while automatic logs provide full traceability for audits. For ultra-short jumpers or critical interfaces, we use cut-and-crimp stations or post-cut trim fixtures to achieve sub-millimetre tolerances at production speed.

How do you guarantee compliance in wiring manufacture?

At Tec-Stop, we follow ISO 9001 and BS standards. Every product is tested, and the design sign-off pack includes evidence for client records.

Can custom wiring support BS standards and sector regulations?

Absolutely. Whether it’s defence, rail, or renewable energy, Tec-Stop designs bespoke electrical solutions - such as cable assemblies, cable harnesses, wiring looms or other bespoke items - to satisfy the exact required guidelines of each sector.

By offering tailored design, manufacture, and delivery of panels, harnesses, and assemblies that ensure safe, streamlined operation. Every solution is built to meet relevant BS and ISO standards.

If you’d like to discuss your next project, order directly, or simply get in touch to discuss compliance, contact our team today.

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Tec-Stop
Unit 87a
Blackpole West Trading Estate
Worcester
WR3 8TJ

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