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CCS2 Charging Cable Selection Guide for B2B EV Projects
Created on 11.03
CCS2 Charging Cable Selection Guide for B2B EV Projects
Most procurement teams open an EV charging project by naming a connector, and that single decision is where trouble starts. A CCS2 charging cable written into a bill of materials as "CCS2, 5 m" tells a supplier almost nothing about current rating, conductor cross-section, jacket compound, temperature sensing or documentation. When the shipment reaches the integrator, the cable can pass a visual check and still fail fit, thermal or paperwork review. This guide explains why those failures happen and what a buyer should put on the specification sheet instead. The goal is a purchase order that survives engineering review the first time.
The three failure modes deserve separate treatment because they have different causes. Fit failures usually come from tolerance build-up between the connector housing, the latch and the vehicle inlet, and they appear only when the assembly is mated to a real vehicle or an equivalent test fixture. Thermal failures appear under sustained DC current, where an undersized conductor or an inconsistent crimp pushes terminal temperature past the design margin. Documentation failures are the quietest and often the most expensive, because they surface at customs, at a tender audit or at a customer's incoming quality gate rather than on the test bench. Each one traces back to the same root cause: a specification that described a shape instead of a performance envelope. Fixing that root cause is cheaper than fixing any of the three symptoms.
What a CCS2 Charging Cable Actually Covers in a DC Charging System
The combined charging system interface is defined in IEC 62196-3 (International Electrotechnical Commission, 2022), which sets out the dimensional and electrical requirements for the vehicle coupler. A CCS2 connector combines AC contacts, dedicated DC contacts and the control and proximity pilot circuits in one housing. The cable behind it is not a single conductor bundle: it carries DC power pairs, protective earth, low-voltage signal lines and often a temperature-sensing loop. Each element has its own insulation thickness, voltage class and bend requirement. A CCS2 charging cable built only from a connector drawing, without a conductor schedule and a termination table, has not actually been designed yet.
Shielding and temperature sensing are what separate a DC-capable CCS2 charging cable from a general-purpose EV charging cable. The DC pair carries ripple from the charger's power stage, while the control pilot line is a low-voltage signal that must not pick up switching noise, so overall or pair-level shielding is normal practice on DC assemblies. Temperature sensing is the second differentiator: many designs embed an NTC or PT1000 element in the connector or along the cable so the charger can derate before a terminal overheats. The sensor type, wiring and calibration have to match the charger's measurement circuit, and a mismatch usually appears as a commissioning fault rather than as a goods-in defect. Buyers should confirm the sensor type at the quotation stage, not after the first prototype build.
Voltage class and insulation coordination follow from the system architecture rather than from the connector alone. IEC 62893 (International Electrotechnical Commission, 2017) provides the construction and test baseline for flexible cables used in EV charging, while ISO 15118 (International Organization for Standardization, 2022) addresses the communication layer between vehicle and charger. A supplier who can quote those references by number and edition is generally a supplier who can also produce the matching test evidence. Buyers should ask for the edition rather than the standard number alone, because requirements shift between revisions. The same discipline applies when reviewing aPRODUCTS catalogue, where the technical annex matters more than the product photo.
Selection Points That Decide Whether the Cable Passes Review
Current rating and duty cycle come first because they drive conductor cross-section and terminal selection. The specification should state the continuous current, the duty cycle the charger actually applies, the ambient temperature inside the enclosure, and whether the cable runs free-air or inside a cable management system. A cable sized against a peak current figure and then installed in a warm cabinet is a thermal fault waiting for a hot afternoon. It also helps to state whether the charger derates on sensor feedback or runs at fixed current, since that changes the safety margin the cable must carry on its own. These four data points cost nothing to supply and prevent most thermal disputes later.
Cable length requires a voltage-drop calculation rather than a rule of thumb. The buyer should supply the length, the expected current and the allowable drop at the charger terminals, and the supplier should return the calculated drop for the proposed cross-section. A 5 m and a 7.5 m variant of the same CCS2 charging cable are not automatically interchangeable in a charger design, even when the connector and current rating are identical. Longer runs also change the handling behaviour of the assembly, which affects strain relief at the connector body. Documenting the calculation in the drawing package makes the assumption visible to every later reviewer.
Jacket and mechanical performance decide field life, and they are often the least documented item on a purchase order. The jacket compound should be specified against cold-bend flexibility, abrasion resistance, oil and coolant exposure, and UV exposure for outdoor installations. Vehicle inlet compatibility belongs in the same conversation: latch geometry, connector keying, insertion force and actuation all vary between vehicle platforms, and a coupler that mates well on one model can be awkward on another. Test reports and traceability complete the picture, linking the delivered batch to a specific set of measurements. Buyers who want a deeper view of how these checks are organised can review theR&D page for the process sequence used on precision cable programmes.
How an Export House Delivers a CCS2 Charging Cable Programme
ANHUI BONWAY IMP. & EXP. CO., LTD. operates as an export house rather than a manufacturing site, which changes what the buyer should expect from the commercial relationship. Work is placed with audited partner factories, and the export house holds the document trail, the drawing revision history and the inspection records across those partners. For a CCS2 charging cable programme, this means the buyer receives one commercial contact while the technical work is distributed across the partner best suited to the current rating and jacket specification. The arrangement is useful when a project needs several cable variants from different production lines under a single order. It also means the buyer should confirm which partner is assigned to each variant, since that affects tooling and lead time.
Drawing approval is the gate that controls everything downstream. The buyer's electrical and mechanical requirements are converted into a controlled drawing showing conductor schedule, cross-section, length, jacket compound, marking, connector variant and sensor configuration. The buyer signs that drawing back before tooling or material is committed, and any later change is issued as a numbered revision. Sampling then follows a defined route: first-article samples from the approved drawing, dimensional and electrical measurement, and a buyer-side fit check against the target inlet or charger assembly. Production is released only after the sample is accepted in writing. This sequence is standard on customised programmes and is described further on theCustomized page.
Minimum order quantity for a CCS2 charging cable is set by current rating and by length, because both drive conductor purchasing and assembly setup. Higher current ratings generally carry a higher entry quantity, and non-standard lengths add a cutting and termination setup that small runs cannot absorb economically. Lead time starts from drawing confirmation rather than from the enquiry date, so the review cycle on the drawing is part of the schedule the buyer must plan for. Shipping documentation typically includes the test report for the delivered batch, a packing list, and the compliance paperwork appropriate to the destination market, with certificates of origin and commercial invoices issued against the agreed trade terms. Buyers can review the company profile on theABOUT US page before the first technical discussion.
What to Send So the Quotation and Technical Confirmation Move Together
The fastest route to a usable quotation is to send three items in the first message: the current rating with duty cycle, the required cable length, and the vehicle interface standard the assembly must mate with. Add the expected ambient conditions and any shielding or temperature-sensing requirement, and the supplier can return a drawing proposal alongside the commercial offer. When those inputs are missing, the quotation becomes a placeholder that has to be reissued, and the drawing review restarts from zero. Sending them together lets the technical confirmation and the price land in the same document, which is the only version worth circulating for approval. TheHOME page contact form is a convenient way to start that exchange with the full data set attached.
Frequently Asked Questions (FAQ)
What current rating should a CCS2 charging cable be specified at?
Specify the continuous current the charger applies, together with the duty cycle and the ambient temperature inside the enclosure. A CCS2 charging cable selected against a peak figure and installed in a warm cabinet can run outside its thermal margin in service. Give the supplier the derating behaviour of the charger as well, because sensor-driven derating changes how much margin the cable must carry alone.
How does cable length affect a CCS2 charging cable design?
Length changes voltage drop, handling behaviour and strain relief at the connector body. The supplier should return a calculated drop for the proposed cross-section rather than assume that a longer CCS2 charging cable of the same rating is equivalent. Buyers should treat each length as a separate drawing revision with its own calculation recorded.
Which standards apply to a CCS2 charging cable?
IEC 62196-3 (International Electrotechnical Commission, 2022) defines the combined charging system coupler, and IEC 62893 (International Electrotechnical Commission, 2017) provides the construction and test baseline for flexible EV charging cables. ISO 15118 (International Organization for Standardization, 2022) covers the vehicle-to-charger communication layer. Ask for the edition as well as the number, since requirements change between revisions.
Does a CCS2 charging cable include temperature sensing?
Many DC assemblies include an NTC or PT1000 element in the connector or along the cable so the charger can derate before a terminal overheats. The sensor type and wiring must match the charger's measurement circuit. A mismatch usually appears as a commissioning fault rather than a goods-in defect, so confirm the sensor configuration before the first prototype build.
Can a CCS2 charging cable be used for AC charging as well?
The CCS2 coupler includes AC contacts alongside the DC contacts, but the cable assembly is designed around a specific current and conductor schedule. A cable built for DC duty is not automatically the right choice for an AC charging product. State the intended operating mode on the enquiry so the conductor and termination design matches the actual use case.
What documents should ship with a CCS2 charging cable order?
Expect the batch test report, a packing list, the commercial invoice and the compliance paperwork required by the destination market. Certificates of origin are issued against the agreed trade terms. For a CCS2 charging cable programme spanning several variants, ask for the documents to reference the drawing revision so the paperwork matches the delivered goods.
What is the minimum order quantity for a CCS2 charging cable?
MOQ is set by current rating and by cable length, because both affect conductor purchasing and assembly setup. Higher current ratings generally carry a higher entry quantity, and non-standard lengths add cutting and termination setup. Share the annual requirement and the variant mix so the quantity can be quoted against realistic production planning.
How long does production take after drawing approval for a CCS2 charging cable?
Lead time starts from drawing confirmation, not from the enquiry date, so the drawing review cycle is part of the buyer's schedule. The supplier should confirm the lead time against the approved revision and the assigned partner factory. Allow separate time for first-article samples and the buyer-side fit check before mass production is released.
What information is needed to quote a CCS2 charging cable?
Send the current rating with duty cycle, the required cable length, and the vehicle interface standard the assembly must mate with. Add ambient conditions, shielding needs and any temperature-sensing requirement. With those inputs the drawing proposal and the quotation can be issued together as one reviewable package.
How is a CCS2 charging cable sample approved before mass production?
First-article samples are produced from the approved drawing and checked for dimensions, electrical continuity and jacket properties. The buyer then performs a fit check against the target inlet or charger assembly. Production is released only after written sample acceptance, and any subsequent change is issued as a numbered drawing revision.
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