| 1 | Connector Compatibility Match the vehicle inlet and charging equipment. | Type 1: SAE J1772 AC connector, commonly used on vehicles designed for single-phase AC charging.
Type 2: IEC 62196-2 AC connector, widely used on vehicles and charging equipment designed for European-style AC charging. | Confirm the connector shape on the vehicle and the socket or plug on the charging point. A Type 1 vehicle inlet will not accept a Type 2 vehicle connector without a suitable, properly rated adapter or cable arrangement. | Do not choose a cable based only on the charging station socket. Check both ends: vehicle side and charging-point side. For a portable cable, verify whether you need a plug-to-vehicle cable or a socket-to-vehicle cable. |
| 2 | Current and Power Rating Select a rating that suits the vehicle and circuit. | Common AC examples include up to approximately 7.4 kW at 32 A and 230 V single-phase for Type 1 installations, and up to approximately 22 kW at 32 A and 400 V three-phase for some Type 2 installations. | Check the cable's rated current, number of phases, conductor size, and the vehicle's onboard AC charger. The actual charging rate is limited by the lowest-rated component in the system. | A higher-rated cable does not make a vehicle charge faster than its onboard charger allows. Never exceed the rating of the socket, circuit, protective device, or charging equipment. |
| 3 | Safety Control Features Look for protection against incorrect or unsafe energization. | Standard AC charging systems use control-pilot communication to confirm that the vehicle is connected and to coordinate current availability before charging begins. | Look for clearly documented control-pilot and proximity functions, secure locking compatibility, strain relief, insulated contacts, and a robust cable jacket. If the cable includes an in-cable control box, review its overcurrent, residual-current, temperature, and fault indications. | Prefer products with complete technical documentation rather than vague claims such as “universal safety.” The charging installation should also provide the required protective devices, including suitable residual-current protection where applicable. |
| 4 | Standards and Certifications Verify conformity for the intended market. | Relevant references may include IEC 62196-2 for vehicle couplers, SAE J1772 for Type 1 interfaces, and applicable electrical safety and EMC requirements in the destination country. | Check the product label, declaration of conformity, test documentation, rated voltage and current, cable type, and the exact standard edition cited. A logo alone is not the same as traceable certification. | Choose a cable legally suitable for the country where it will be used. Certification requirements differ by region, and a connector standard does not automatically prove that every cable assembly is certified. |
| 5 | Weather and Environmental Protection Assess outdoor durability. | Connector assemblies may have an ingress-protection rating, but the rating applies only under the conditions and configuration specified by the manufacturer. | Look for a published IP rating, UV-resistant cable jacket, operating-temperature range, corrosion-resistant contacts, sealed covers, and protection against water entering the connector while disconnected. | Avoid leaving connectors in standing water, mud, or direct sunlight for extended periods. Do not assume that an outdoor-rated connector makes the entire charging installation weatherproof. |
| 6 | Everyday Handling Balance reach, weight, flexibility, and storage. | Higher-current and longer cables are generally heavier. Three-phase Type 2 cables may contain more conductors and can be less flexible than shorter single-phase cables. | Compare cable length, bend radius, approximate weight, connector grip, strain relief, storage bag, and resistance to repeated flexing. A cable that is too short may be inconvenient; one that is excessively long may be difficult to store. | Choose the shortest length that comfortably reaches the charging point without tension. Keep the cable away from vehicle tires, door hinges, sharp edges, and areas where people can trip. |
| 7 | Inspection and Maintenance Plan for safe long-term use. | Connector pins, seals, latches, and cable insulation can wear through repeated use, contamination, impact, or heat exposure, regardless of connector type. | Before use, inspect for cracked housings, bent or discolored contacts, loose pins, damaged insulation, exposed conductors, faulty latches, or unusual heat. Stop using the cable if damage or overheating is found. | Keep contacts clean and dry, store the cable loosely without tight knots, and follow the vehicle and charging-equipment instructions. Have persistent faults assessed by a qualified electrical professional. |