Circular Connector Cable Assemblies San Sebastián: Circular connector cable assemblies join round, multi-pin connectors to cable for machines, vehicles, instruments and field equipment. The customer defines the connector series, shell size, insert arrangement, cable and length; a manufacturer selected from the network builds the assemblies. Justicia Marin is a technical distributor and supplier: it coordinates the order and supplies the result, without a workshop of its own. For companies in San Sebastián, Justicia Marin records the drawing, materials and quantities, checks the right manufacturer in its network and coordinates the supply. The production of the cables is done by the selected manufacturer; the customer approves the specification and the acceptance criteria.
Round connectors, many variants
Circular connector cable assemblies (also circular cable assemblies or industrial circular connector cables) use round connectors with threaded, bayonet or push-pull coupling. The series, the shell size, the insert arrangement, the keying, the contacts and the backshell must all match the mating connector, so the drawing names each of them for both ends. This page covers custom circular connector cable assemblies as a supply service, in single-ended, double-ended and branched versions. M8 and M12 sensor cables, data cables and complete harnesses have their own pages. Justicia Marin does not manufacture the cables; it selects a manufacturer for the job and coordinates delivery. Connector series, contacts and backshells follow the connector manufacturer’s data and the customer’s drawing. It is not assumed that one manufacturer can supply every connector series or process every contact size.
Series, insert and backshell
Circular connectors only mate when series, size and keying agree. Quotes are comparable only when these are stated. The following four decisions should be settled before the request, so that part, price and inspection describe the same result.
The customer names the series, the shell size and the insert arrangement, and the keying for each end. The manufacturer confirms availability and reports mismatches.
Contact type and size, and the termination method (crimp or solder), are specified, together with the tooling the contact manufacturer calls for.
Cable construction, jacket and bend radius are stated, with the backshell, boot or potting needed for strain relief and for the protection rating required.
Continuity against a wiring list is agreed, and any further test is written into the quotation with the records to be supplied.
Details for the quotation
A drawing with the connector references for both ends and a wiring list reduces the quotation to a few questions. If a dimension or a criterion is missing, we point it out before the request goes to the manufacturer. We do not replace the customer’s documents with assumptions that have not been approved.
Projects in San Sebastián
San Sebastián is a city in Basque Country, Spain. Industrial activity in and around the city includes machine building, electronics and engineering services, which creates demand from machine builders, electronics OEMs and engineering teams. Context: Basque Country (Spain). Bilbao is about 80 km to the west of San Sebastián, and Pamplona about 60 km to the south-east. San Sebastián has a population of about 190,000 (2025). San Sebastián is part of Donostialdea, within Gipuzkoa. Capital-equipment and machinery makers operate around San Sebastián, which suits repeatable cable assemblies built to drawing. If the request comes from a company in the “machine building” sector in San Sebastián, the following applies: connector series, cable and backshell follow the drawing, not the delivery address. The presence of an industry in the area does not mean that Justicia Marin has a site, production or customers there. The manufacturer is selected for demonstrated capability against the specification, not for proximity. Regional reference: San Sebastián: official website.
Connector series and keying are checked against the mating part before production. A mismatch is raised, not corrected silently.
A sample cable is checked by the customer on the equipment before the series. No batch is committed without approval.
The manufacturer checks continuity as agreed and documents it. Justicia Marin coordinates the records.
From specification to series
We clarify connectors, contacts and cable with the customer, consult manufacturers about capability, and coordinate samples and supply.
Receive the drawing
The customer sends the drawing with connectors, wiring list, cable, length and quantity.
Consult manufacturers
Justicia Marin asks manufacturers to confirm connector availability, capability and price.
Approve a sample
A sample is checked by the customer on the equipment before the batch is released.
Supply and repeat
The manufacturer builds the batches to the approved configuration; Justicia Marin coordinates documents and delivery.
Responsibilities
Justicia Marin is a technical distributor and coordinates the supply; it is not the workshop that carries out the production of the cables. We receive the drawing, consult the right manufacturer and coordinate samples, quotation and supply. The selected manufacturer works and documents the agreed inspections; the customer remains the owner of the drawing and accepts the result.
Defines connectors, contacts, cable and backshell; approves alternatives and the sample; validates the cable on the equipment.
Analysis — connectors, contacts and open points
Selection — manufacturer and offer comparison
Start — sample and release
Delivery — documents, revisions and delivery
The selected manufacturer builds the cables to the drawing, checks continuity as agreed, documents the results and reports before the start if a connector, contact or cable does not match.
Justicia Marin coordinates the supply. It has no workshop, production line or laboratory of its own and does not issue certificates. Production and the agreed tests are carried out by the selected manufacturer; the design and the final validation stay with the customer.
Go deeper
Scope of supply
Justicia Marin coordinates the supply. It has no workshop, production line or laboratory of its own and does not issue certificates. Production and the agreed tests are carried out by the selected manufacturer; the design and the final validation stay with the customer.
Questions about circular connector cable assemblies
Do you need circular connector cable assemblies in San Sebastián?
With the wiring list, cable and quantities, the scope can be defined and a manufacturer consulted.
Useful details
We review the documents and name open points before a quotation is prepared.