Mainland China's mainstream selection of EV charging connectors consists of EV-80 and EV-100 types respectively with four and seven silver-plated copper contacts, and PC insulation. Releases support 220VAC charging voltage, 16 to 32A rated current and 100,000 cycles. These have an IP55 to IP65 rating, and are flame-retardant and chemical-resistant. Units conform to IEC 62196, SAE J1772, UL and RoHS guidelines.

In corresponding cable assemblies, makers offer types with 8 to 24AWG wire. Models can withstand heat, cold, UV exposure, abrasion, and chemicals, including oil and solvents. These are IP55 to IP65-rated. In terms of electrical properties, products have 220/250V to 600/750V and 16 to 400A rated voltage and current. These adopt bare copper for the conductor, and thermoplastic for the insulation and jacket. Besides RoHS and UL, the typical standards met are CE, CSA, KEMA and TÜV.

Wire harnesses with 0.5sqmm and 0.75sqmm sectional areas are respectively for indicator and braking lights. Those with 1 and 1.5sqmm suit turning and head lights. Variants with larger sectional areas of 2.5 to 4sqmm target power supplies from batteries to the whole vehicle.

Companies subject all products to various tests to secure CCC, JIS, RoHS, UL and VDE approval.

The key materials used include copper wire and PVC insulation, which most suppliers source locally. Stable costs are expected to keep prices unchanged until year-end.

Here is a selection of EV charging connectors and cable assemblies, and wire harnesses:

Wire harness meets UL

Dongguan Jiafu Wire Harness Co. Ltd's wire harness JF-W0-201341 model has a tin-plated conductor and operates in -40 to 105 C. It is UL-listed. The minimum order quantity is negotiable. Orders are delivered within 10 days.

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Water-resistant connector for battery power chargers

The model 91381305012AA connector for battery power chargers from Hu Lane Associate Inc. has two, three, four or five pins. The 46x36x32.8mm interconnect is water-resistant. It complies withIEC requirements. The required minimum order is 100 units, and delivery lead time is 30 days.

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Wire harness uses TPE insulation

Panawincn Wiring Harness & Cable Assembly Co. Ltd's model PNWC-Auto-SC-001A wire harness has 2x10AWG wire, TPE insulation, TPU jacket and polyester film separator. The maker's minimum order is 1,000m. Delivery is within 15 days.

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Charging cable assembly has IP55 rating

The model BJ1119C01 charging cable assembly from Shenzhen Baojun Electronics Co. Ltd is rated at 250VAC and 16, 32 or 63A. It boasts an insertion force of <45 to <80N and has <50K thermal temperature rise. The IP55-rated unit has silver- or nickel-plated copper alloy contact pins, UL94V-0-rated thermoplastic insulator, and rubber or silicone rubber gasket. It has anti-UV, impact-, wear- and oil-resistant properties. Under no-load conditions, it can last >10,000 cycles. It meets IEC 62196-2 and JDQ53.36.1.1-53.36.1.2.

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