Plug-in connection end插接式端头
The end uses a plug-in form, with clearance arranged for insertion, removal and cable bends.端头采用插接形式，可围绕安装位置安排插入、退出及线缆弯曲空间。
Solar Cable Assembly太阳能电缆组件
MC4 Dual-Connector Solar Extension CableMC4双接头光伏延长线
MC4 Dual-Connector Solar Extension Cable combines plug-in connection end, extension connection layout. Interface, circuit and installation data guide dimensions, material selection and sample review.MC4双接头光伏延长线的结构重点包括插接式端头、延伸连接布局。接口、电路与安装资料将作为尺寸、物料和样品制作的确认依据。
- Interface and circuit review接口与回路对应审核
- Length and installation configuration线长与安装结构定制
- Manufacture from approved sample样品确认后组织制造
CONSTRUCTION结构解析
Connection structure and design details连接结构与设计要点
Use the mc4 dual-connector solar extension cable form as a starting point and confirm these design points against drawings and the actual equipment.以MC4双接头光伏延长线的结构形式为起点，结合图纸和实际设备确认以下设计要点。
Extension connection layout延伸连接布局
The lead extends the connection to another position, with length, end orientation and fixing routed to the target location.连接线把接入位置延伸到另一端，可围绕目标位置定义长度、端头朝向与固定路径。
Conductor and insulation selection导体与绝缘选配
Select conductors and insulation from circuit loads, diameter limits, bending and exposure. A material name does not replace ratings or validation results.从电路负载、外径限制、弯曲方式与环境条件选择导体和绝缘体系；材料名称不应直接代替额定参数或验证结果。
Interface and function review接口与功能确认
Do not assume cross-mating of similar PV connectors外形相似的光伏接头不得默认混插
Installation and acceptance安装与验收
Confirm connector and cable DC ratings separately连接器与线缆直流额定分别确认
CONFIGURATION结构与选配
Construction & customization options结构与定制配置
The table describes the construction and available configuration choices. Materials, dimensions, circuits and inspection requirements are agreed for each project.以下说明展示结构与可配置内容。具体材料、尺寸、电路和检验要求按项目确认。
| Module, cable and PV connector part numbers组件、电缆与光伏接口完整料号 | Check complete module, cable and connector part numbers together.组件、电缆和接口完整料号成套核对。 |
|---|---|
| System DC voltage, current and polarity系统直流电压、电流与极性 | Define DC voltage, current, polarity and branch loads separately.直流电压、电流、极性与分支负载分别定义。 |
| Outdoor temperature, UV and cable specification户外温度、紫外线与线缆规范 | Match outdoor materials to sunlight, temperature and installation.户外材料对应日照、温度及安装方式。 |
| Connector crimp, mating and pull-test evidence连接器压接、插合与拉力依据 | Use specified tooling, crimp and mating requirements for assembly.指定工具、压接和插合要求作为装配依据。 |
| Circuit and revision reference电路与版本依据 | Provide the module, inverter or combiner interfaces; exact connector manufacturer and part numbers; maximum system voltage; string open-circuit voltage at the design minimum temperature; operating and fault current; conductor size and cable designation; route, length and voltage-drop target; installation zone; branch and protection arrangement; quantity; labels; packaging; and required inspection or test method.请提供组件、逆变器或汇流设备接口；连接器制造商与准确型号；最大系统电压；设计最低温度下的组串开路电压；工作及故障电流；导体截面积与线材牌号；走线、长度和压降目标；安装区域；分支与保护方案；数量；标签；包装以及所需检验或测试方法。 |
| Sample and manufacturing configuration样品与制造配置 | We review the released electrical architecture and component compatibility before sampling. Custom length, color, marking, branch geometry and equipment-side termination can then be frozen in a drawing and bill of materials.打样前先审核已放行的电气架构与元件兼容性，再把定制长度、颜色、标识、分支几何和设备端端接冻结到图纸与物料表。只有当准确材料、组件配置与当前证据均覆盖时，才对认证、防护、阻燃、耐候或寿命作出相应声明。 |
APPLICATIONS连接的应用
Application directions应用方向
These are connection directions for project discussion. Suitability depends on interfaces, circuits, installation conditions and project validation; configuration can be adapted to the equipment.以下为可讨论的连接方向。实际适用性取决于接口、电路、安装环境和项目验证，可按设备需求调整。
PV module connections光伏组件连接
Confirm interface sources and polarity from exact part numbers. Check complete module, cable and connector part numbers together.两端接口来源及极性按准确件号确认。选配时，组件、电缆和接口完整料号成套核对。
Combiner and branch wiring汇流与支路布线
Define branch loads, lengths and protection together. Define DC voltage, current, polarity and branch loads separately.支路负载、线长与保护器件一起定义。选配时，直流电压、电流、极性与分支负载分别定义。
Equipment DC leads设备端直流引线
Follow equipment documents for inverter or auxiliary interfaces. Match outdoor materials to sunlight, temperature and installation.逆变或辅助设备接口需遵循设备文件。选配时，户外材料对应日照、温度及安装方式。
Rooftop and frame routing屋顶及支架布线
Match temperature, sunlight, abrasion and fixing to the actual route. Use specified tooling, crimp and mating requirements for assembly.温度、日照、磨擦与固定点需对应实际路线。选配时，指定工具、压接和插合要求作为装配依据。
Equipment cable entries and mounting interfaces设备穿线与安装接口
At PV-equipment cable entries, check cable diameter, glands, sealing parts and bend space. Electrical adapters still follow the interface drawings. Check complete module, cable and connector part numbers together.光伏设备穿线处需核对线径、固定接头、密封零件和弯曲空间，电气转接仍以接口图纸为准。选配时，组件、电缆和接口完整料号成套核对。
Commissioning and service leads调试与维护连接
Define handling, insulation protection and test use from system procedures. Define DC voltage, current, polarity and branch loads separately.操作、绝缘保护与测试用途按系统程序定义。选配时，直流电压、电流、极性与分支负载分别定义。
ENGINEERING & PRODUCTION工程与制造
Adapt the connection to your equipment.围绕设备，调整连接细节。
Touched by me, better it’ll beTouched by me, better it’ll be
Custom wire harness manufacturing in China中国工厂 · 定制线束制造
Our China factory supports solar cable assembly projects through custom wire harness manufacturing and OEM/ODM development. Interface, circuit and installation data guide material selection, sample builds and manufacturing-document approval before repeat production.Super Smile-Tech 中国工厂围绕太阳能电缆组件的项目需求提供定制线束制造与 OEM/ODM 支持。我们从接口、电路与安装资料开始，协同物料选配、样品制作和制造文件确认，再按批准要求组织重复生产。
Module, cable and PV connector part numbers组件、电缆与光伏接口完整料号
Check complete module, cable and connector part numbers together.组件、电缆和接口完整料号成套核对。
System DC voltage, current and polarity系统直流电压、电流与极性
Define DC voltage, current, polarity and branch loads separately.直流电压、电流、极性与分支负载分别定义。
Connector crimp, mating and pull-test evidence连接器压接、插合与拉力依据
Use specified tooling, crimp and mating requirements for assembly.指定工具、压接和插合要求作为装配依据。
PRODUCT QUESTIONS产品问答
Product & customization questions产品与定制常见问题
Is every black double-insulated cable suitable for PV use?所有黑色双层绝缘电缆都适合光伏使用吗？
No. Cable suitability depends on its complete designation, voltage, conductor construction, materials, certification or listing scope, temperature, sunlight and wet-location properties, flame behavior and the intended installation rules. Appearance alone is not evidence.不是。线材适用性取决于完整牌号、电压、导体结构、材料、认证或列名范围、温度、耐日光与潮湿特性、阻燃表现及预期安装规则，外观本身不是证据。
Can two ‘MC4-compatible’ connectors from different brands be mated?两个不同品牌的“兼容 MC4”连接器可以直接混插吗？
Cross-mating is accepted only when the exact connector combination is authorized and supported by applicable certification, listing or engineering evidence. Similar appearance and nominal dimensions are insufficient.只有准确连接器组合获得授权，并有适用认证、列名或工程证据支持时才可接受混插；外观相似与名义尺寸相近并不充分。
What determines solar extension-cable length and conductor size?太阳能延长线的长度和截面积如何确定？
Use the complete positive and negative route, operating and fault current, ambient and grouping derating, connector limits, protection, allowable voltage drop, mechanical route and applicable installation rules. A catalog current number alone is not enough.需要结合正负极完整路径、工作及故障电流、环境与成束降额、连接器限值、保护、允许压降、机械走线和适用安装规则，不能只看目录中的单一电流数字。
Start with your interface and installation requirements从您的接口与安装需求开始
Share mating interfaces, a circuit table, target lengths or a sample for the mc4 dual-connector solar extension cable. We can use them to review configuration and sample requirements.提供MC4双接头光伏延长线的对插接口、回路表、目标长度或参考样品，我们据此梳理选配与样品确认事项。