compatible with photovoltaic and energystorage lowvoltage multiloop powersignal circXinguangStyle 16Pin Square Female SolderWire Connector, TinPlated with Waterproof Gasket

2. Product Features and Core Advantages

This Xinguangstyle 16pin square female solderwire waterproof connector with tinplated contacts and red waterproof gasket is specially optimized for Xinguang photovoltaic inverters, energystorage cabinets and distributed solar power systems. As a squareformfactor multipin solderwire female receptacle, it addresses common industry painpoints such as insufficient multisignal integration, poor matingface sealing, complex harness production, insecure locking and high component cost for solar equipment OEMs and harness manufacturers.

First of all, square housing with dualsnap locking and IP67 waterproof gasket realizes fast, stable and sprayproof connection. Different from round circular connectors, this squareshaped connector adopts dual side snapin locking clips. Operators can complete firm mating by pushing the male plug straight into female receptacle until two side latches click into place. The equipped red silicone waterproof gasket is installed between male and female mating surfaces. Once fully locked, the gasket is compressed evenly to block dust, rain splash and humid air from entering the contact cavity, achieving IP67 sprayproof performance. The snaplock design allows repeated quick disassembly for equipment maintenance, while the mechanical latch structure resists vibration from inverter internal fans and outdoor wind shock, effectively preventing accidental loosening during longterm field operation.

Second, full tinplated 16pin contacts deliver outstanding solderability and costeffective multichannel transmission.Sixteen female contacts are made of highconductivity copper alloy with fullsurface tinplated treatment. Tinplating provides excellent soldering wetting performance. Harness workshops can form stable solder joints by using ordinary soldering stations, reducing virtualsolder and coldsolder failure risks during mass harness production. The dense 16pin layout integrates multiple power circuits and monitoring signal channels inside one compact square housing, saving cabinet internal layout space for inverters and energystorage equipment. Under conventional indoor and semioutdoor photovoltaic operating environments, tinplated contacts maintain low and stable contact resistance, meeting multisensor signal collection and auxiliary power supply requirements. Compared with goldplated multipin connectors, full tinplated configuration greatly reduces total BOM cost for largescale solar projects.

Third, solderwire termination improves harnessmaking flexibility and lowers productionequipment investment threshold. This female receptacle applies solderwire termination instead of crimpstyle contacts. Harness factories do not need to invest in expensive automatic crimping machines and special crimping dies. R&D prototype verification, smallbatch trialproduction and massvolume manufacturing can all be completed by manual or semiautomatic soldering equipment. Customers can select stranded copper wires within AWG2418 range according to actual current load and wiringspace limitation, free from constraints of fixed crimp terminal specifications. Fieldassembly feature allows technicians to cut and process harness length on project site instead of ordering premolded fixedlength cables, shortening newproduct development cycle and improving construction flexibility for distributed photovoltaic and energystorage projects.

Fourth, compact square formfactor plus antimismating polarization enhances onsite assembly safety. The square housing structure is wellsuited for inverter cabinet internal wiring and external wiring interface layout. Builtin antimismating polarization key on housing defines only one correct mating angle. Field installers cannot complete plugin under reversed orientation, effectively preventing contact bending, shortcircuit and equipment damage caused by human misoperation. Highgrade PA66 flameretardant housing possesses outstanding impactresistance and UVagingresistance. When deployed in semioutdoor photovoltaic sites, it resists cracking, embrittlement and fading under longterm temperature cycling. Internal insert firmly locks sixteen female sockets, preventing contact shifting or loosening under mechanical shock and continuous vibration.

Fifth, rigorous fullprocess quality control guarantees batchtobatch consistency.Each production batch undergoes multilevel inspection before shipment: rawmaterial incoming inspection, tinplating thickness sampling test, waterproof gasket dimensional verification, sealing performance test and finishedproduct electricalperformance spotcheck. Antistatic packaging protects precision tinplated female contacts from static discharge and surface contamination in logistics. Material statements and test documents can be supplied for project bidding and internal quality archive. This Xinguangstyle 16pin square female receptacle maintains interchangeable mating dimensions with compatible square multipin connectors on market, helping customers achieve cost optimization without sacrificing connection reliability.

3. Application Scenarios

Benefiting from 10A perpin current capacity, 16pin multichannel powersignal layout, IP67 sealing and solderwire fieldassembly capability, this Xinguangstyle square female connector is widely applied for multiloop powersignal interconnection of photovoltaic inverters, energystorage power cabinets and outdoor solar control equipment.

3.1 Xinguang Distributed Photovoltaic Inverter Systems Used as cableside female connector for Xinguang string inverters and hybrid inverters. 16pin design realizes multichannel auxiliary power supply and multigroup monitoring signal transmission. IP67 matingface sealing adapts to semioutdoor cabinet installation environment. Dualsnap locking supports convenient equipment maintenance and harness replacement.

3.2 Household & Commercial EnergyStorage Cabinets Suitable for residential energystorage systems, commercial energystorage power cabinets and hybrid energystorage inverters. Realizes external connection of BMS monitoring harness, multiple sensor signal harness and auxiliary power harness. Solderwire fieldassembly structure supports flexible cablelength configuration on project site. IP67 protection copes with semioutdoor cabinet deployment conditions.

3.3 PV Monitoring & Smart Combiner Box Harness Applied for solar array monitoring units, PV smart combiner boxes and fieldside multisignal communication wiring. 16pin highdensity layout transmits multiple sensor signals and auxiliary power simultaneously. Waterproof gasket prevents splashwater and dust from invading contact cavity under outdoor environments.

3.4 Outdoor Industrial SolarPowered Equipment For outdoor solar monitoring stations, solarpowered control cabinets and fielddeployed automation equipment. Working under large daynight temperature difference and dustsplash exposure, reliable gasket sealing protects internal tinplated contacts from atmospheric contamination. Solderwire assembly facilitates onsite maintenance and harness modification.

3.5 Mobile Solar Emergency Power Stations Adopted on portable solar generators and mobile field energystorage devices. The connector endures frequent handling and transportation vibration. Positive dualsnap locking avoids accidental disconnection during moving and field operation.

3.6 Photovoltaic Equipment Aging & Test Benches Widely used for inverter aging test racks and solarequipment debugging fixtures. Solderwire termination facilitates quick prototype modification and custommade multichannel testharness production. Stable electrical performance ensures repeatable test data during longtime aging operation.

4. FAQ

Q1: What IP protection rating can this Xinguangstyle 16pin square female connector achieve? A: It reaches IP67 rating under correct assembly prerequisites: red waterproof gasket properly installed, matching male plug fully snappedlocked, and housing mating surfaces are completely closed. IP67 provides dusttight performance and protection against lowpressure water jet splash. This product is NOT intended for water immersion or permanent underwater submersion. If highergrade IP67 application is required, please contact our technical team for customized solution.

Q2: Is the red waterproof gasket included in standard supply? A: Yes, the red silicone waterproof gasket is standard supplied together with female receptacle housing and contact insert. Please keep the gasket intact during harness processing. Damaged or deformed gasket must be replaced to guarantee sealing performance.

Q3: Is this solderwire type or crimpcontact type? Can crimp terminals be assembled? A: This is solderwiretermination female receptacle. Contact tails are designed for wire soldering. Standard version does not support crimp terminals. Users shall solder stranded copper wires onto contact tails by soldering iron. If crimpcontact variant is required for largescale automatic harness production, please consult our sales team for alternative model.

Q4: What wire gauge is recommended? What is perpin rated current? A: Recommended stranded copper wire gauge: AWG 2418. Continuous rated current for each single female pin is 10A. Do not exceed rated current in practical application to avoid abnormal heating and circuit risk.

Q5: What risks will occur if dualside locking clips are not fully snapped? A: Incomplete snaplock will result in partial mating, loss of IP67 waterproof performance, unstable contact resistance and risk of accidental disconnection under vibration. For outdoor or semioutdoor usage, please ensure both side locking clips are fully clicked into locked position.

Q6: Does this product contain the matching 16pin square male plug? A: This product only supplies Xinguangstyle 16pin square solderwire female receptacle with waterproof gasket. Corresponding male plug is sold separately. Please inform our sales if you need complete malefemale mating sets.

Q7: Can you provide customization service? A: Customization is available for largevolume orders. Supported custom items include plating thickness adjustment, special housing color, minor housing structural modification. Customized projects have MOQ requirements. Please send your detailed technical requirements to our business email for evaluation and quotation.

Q8: Can I get engineering samples for preproduction performance verification? A: Yes, test samples are available for customer performance and docking validation. Sample cost and freight shall be borne by customer. Sample leadtime depends on stock availability.

Q9: What is operating temperature range and mechanical matingcycle life? A: Standard operating temperature: 40℃ ~ +85℃. Minimum mechanical mating cycles: 500 times. For applications with extremely frequent plugunplug operations, please contact us for enhancedcontact solution.

Q10: Are rawmaterial certificates and performance test reports available? A: We can provide sampling electricalperformance test reports and rawmaterial compliance statements for project filing. Please submit your document request via our official contact channel.

5. Contact Us

If you have technical consultation, sample application, bulkorder quotation or customizedsolution demand for XinguangStyle 16Pin Square Female SolderWire Connector, TinPlated with Waterproof Gasket, please feel free to get in touch with our professional sales and technicalsupport team.

Our team owns rich practical experience in industrial square & circular waterproof connectors, photovoltaic & energystorage interconnection components and wiring harness accessories. We are capable of providing technicalparameter confirmation, matingmodel recommendation, projectoriented customization suggestions and fullorderprogress tracking service for your specific application scenarios.

We sincerely welcome global distributors, harness manufacturers and equipment OEM / ODM manufacturers to establish longterm winwin cooperative partnerships with us.