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No Minimum Order Quantity
Bespoke Cable Assemblies & Wiring Harnesses
From rapid 7-day UK builds to cost-effective Far East volume production — engineered to IPC/WHMA-A-620 Class 2 & 3.
Circuit Source designs and manufactures bespoke cable assemblies and wiring harnesses for mission-critical applications across EV, medical, data centre, and industrial automation sectors. We work with Molex, TE Connectivity, Amphenol, and cost-effective equivalents to deliver assemblies that meet your exact specifications — with no minimum order quantity.
Get a Cable Assembly QuoteCustom Cable Assembly Types
From prototype to full production — engineered interconnect solutions built to your exact specification.
Wire Harness Assemblies
Multi-conductor wire harnesses with Molex, TE Connectivity, and Amphenol connectors. Built for automotive, industrial, and EV applications with full IPC/WHMA-A-620 compliance.
Signal Cable Assemblies
Colour-coded signal cables with individual pin connectors for data transmission and control circuits. Ideal for electronics prototyping, PCB interconnects, and testing rigs.
Braided Cable Assemblies
Premium braided-sleeve cable assemblies with precision XLR and custom connectors. Designed for audio, broadcast, medical, and high-reliability applications requiring superior shielding.
Why Choose Circuit Source Cable Assemblies?
Engineered for reliability across mission-critical sectors.
7-Day UK Rapid Turnaround
Prototype and small batch builds completed in as little as 7 working days from our UK facility.
Far East Volume Production
Cost-effective manufacturing with 4–12 week lead times for medium and high-volume orders.
Brand-Name & Equivalent Connectors
Molex, TE Connectivity, Amphenol connectors — plus vetted equivalents to reduce cost without compromising quality.
Custom Overmoulding & Strain Relief
In-house overmoulding capability for ruggedised assemblies that withstand harsh environments.
100% Continuity & Pull Testing
Every assembly is electrically tested using automated Cirris testers and mechanically validated before despatch.
DFM & BOM Optimisation
Our engineers review your design for manufacturability and suggest cost-saving alternatives before production begins.
Two Routes, One Standard
Choose the production model that fits your timeline and budget — both backed by the same quality processes.
UK Rapid Build
Prototypes and small batches manufactured in our UK facility. Ideal for design validation, urgent requirements, and pre-production runs.
- 7 working day turnaround
- No minimum order
- Direct engineer access
Far East Volume
Cost-effective production for medium and high volumes through our audited partner factories. Same spec, same testing, lower unit cost.
- 4–12 week lead times
- Sea-freight pricing
- Full QC before shipment
Sectors We Serve
Our cable assemblies are trusted in the most demanding environments.
EV & Automotive
Medical Devices
Data Centres
Industrial
Defence
Standards & Approvals
| Specification | Circuit Source Capability |
|---|---|
| Standards | IPC/WHMA-A-620 Class 2 & 3 |
| Approvals | UKCA, CE, UL Available |
| Testing | Automated Cirris Continuity Testing |
| Materials | UL Listed Wire & Cable |
| Sourcing | Global Supply Chain Access |
Frequently Asked Questions
We manufacture a wide range including ribbon cables, multi-core looms, RF coaxial assemblies, power harnesses, data cables, sensor leads, and complex box-build wiring. If it involves wire and a connector, we can build it.
No. We handle everything from single prototypes to production runs of thousands. Our flexible model lets you start small and scale without commitment.
We regularly work with Molex, TE Connectivity, Amphenol, JST, Hirose, Deutsch, and Harting. We also source vetted equivalents when cost reduction is a priority — always with full traceability.
UK rapid builds can be completed in 7 working days. For larger volumes, our Far East partners deliver in 4–12 weeks depending on complexity, with sea-freight or air-freight options available.
All assemblies are manufactured to IPC/WHMA-A-620 Class 2 or Class 3 standard. We also support UKCA, CE, and UL certification as required, with full test documentation provided.
Absolutely. Our DFM (Design for Manufacturability) service reviews your drawings and BOM to identify cost savings, improve reliability, and ensure the design is production-ready before tooling begins.
Related Services
Explore more of our engineering capabilities.
Need Bespoke Cable Assemblies?
Get a fast, no-obligation quote from our UK engineering team. Prototype to volume — no MOQ.
Request a Quote