Industrial-Grade Solar PV Connectors — Wholesale Price, Direct from Factory
CNCOB manufactures the full spectrum of MC4 connectors, adapter cables, and photovoltaic wiring accessories. TÜV-certified, IP67/IP68-rated, 1000V DC rated — built for residential balcony systems through large-scale commercial solar farms. Trusted by distributors and EPCs in 160+ countries.
Every CNCOB MC4 connector and cable is designed, prototyped, stamped, injected, and tested entirely in-house — no outsourcing, no quality gaps.
CNCOB controls every step — from R&D and mold fabrication, to precision metal stamping, plastic injection, automated assembly, and quality-controlled packing. This means consistent product quality and faster lead times for B2B buyers.
Our MC4 connectors meet stringent international standards: TÜV certification, IP67/IP68 waterproofing, UL94-V0 flame retardancy, IEC compliance, and ISO 9001 quality management. Third-party audits are part of our standard process.
No middlemen. Purchase directly from the manufacturer for the most competitive wholesale margins. Competitive MOQs for distributors, EPCs, and project installers. Custom branding (OEM/ODM) available on request.
Tin-plated or silver-plated pure copper contacts deliver minimal contact resistance for maximum current transfer — up to 50A on high-current models. Less energy loss, lower operating temperatures, longer system life.
Operating temperature range of −40°C to +90°C across all connector families. PPO high-strength polymer housings are UV-resistant, corrosion-proof, and built for decade-long exposure in coastal, desert, or sub-Arctic installations.
Since 2006, CNCOB products have powered solar installations in 160+ countries. Many of the world's top 10 solar inverter brands source from CNCOB. Our after-sales team of 100+ specialists resolves global issues within 48 hours.
From standard connectors and adapter cables to fuse-integrated protection devices — every critical solar wiring component in one place.
The universal photovoltaic connector with hexagonal body, PPO housing, and self-locking male–female mechanism. Suitable for residential rooftops, commercial arrays, and industrial plants.
High-current T-shape or H-shape solar PV connector for demanding commercial and industrial wiring. Flame-retardant UL94-V0 housing, pure copper conductors, self-locking compression design.
Precision-engineered for solar module manufacturers. TÜV-certified cable-end MC4 connector ensures standardised, compliant terminations on PV modules. The installer's choice for large project roll-outs.
Designed for direct integration into solar panel junction boxes. PPO plastic construction with secure panel-mount design for permanent photovoltaic connections. Low profile, weather-sealed.
Built-in fuse and bypass diode in a single weatherproof MC4 body — protects against over-current and reverse current in string configurations. Eliminates need for separate inline fuse holders.
Pre-terminated MC4-to-MC4 extension cable for extending solar panel strings. Fully waterproof, UV-stabilised PV cable with factory-fitted male/female MC4 connectors. Available in custom lengths.
Bridges solar panels with MC4 outputs to portable power stations and solar generators using XT60 inputs. Tinned copper conductors, IP67-rated MC4 side, compact design for camping, RV, and off-grid setups.
Connects MC4-output solar panels to portable power stations, generators, and RV/marine battery systems with SAE input sockets. Flexible, durable cable rated for outdoor year-round use.
Anderson Powerpole + DC5521 + DC7909 + XT60 — all in one cable from a single MC4 input. The ultimate universal adapter cable for distributors supplying diverse portable power station brands.
CNCOB MC4 connectors and cables perform reliably across the full spectrum of photovoltaic deployment environments.
Grid-tied and off-grid home solar systems in all climates. IP67/IP68 protection for long-term outdoor reliability.
Large-scale rooftop and ground-mounted arrays for factories, warehouses, and commercial buildings. High-current 50A rated.
Plug-in photovoltaic systems (balcony power plants) popular in Europe and Asia. Compact, safe, and easy to install.
Adapter cables for motorhomes, campervans, yachts, and boats. MC4-to-XT60, MC4-to-SAE, and MC4-to-Anderson variants.
Connect foldable panels to popular power station brands. 4-in-1 adapter covers XT60, Anderson, DC5521, and DC7909 inputs.
Off-grid lighting, security cameras, and telecommunications equipment relying on small PV panels in remote locations.
Solar irrigation pumps and agrivoltaic installations. Rugged connectors rated for dusty, muddy, and high-humidity environments.
Panel-mounted and cable-end connectors for solar module OEMs. TÜV-certified options for module-level compliance.
What sets CNCOB apart from resellers and trading companies is simple: we make everything ourselves. Our 600+ R&D engineers and state-of-the-art Dongguan factory give us complete control over every component — from raw material selection to finished connector.
Every connector undergoes 100% functional testing in our CNAS-certified internal laboratory before shipment. Defect rates are measured in parts per million. B2B buyers can request full QC documentation, material certificates, and third-party test reports with every order.
600+ engineers selecting optimal PPO polymer blends and copper alloys for conductivity, UV resistance, and flame retardancy before a single mold is cut.
We design and machine all tooling internally to ±0.002mm tolerance, enabling rapid iteration and cost control — advantages passed directly to wholesale buyers.
Automated presses produce contact pins and housings with zero-defect consistency. Tin or silver plating applied inline for optimal corrosion protection.
Robotic assembly lines ensure repeatable crimping force and connector sealing — eliminating the inconsistencies of manual assembly that plague lower-tier suppliers.
Every unit passes contact resistance, pull-out force, IP sealing, and high-voltage tests in our CNAS-certified lab. TÜV, IEC, and UL documentation available on request.
Every CNCOB MC4 product is validated against the international standards required by solar project financiers, EPCs, and grid operators worldwide.
Cable-end MC4 connectors carry TÜV Rheinland certification — the gold standard for PV component safety in Europe and internationally.
Full dust ingress protection plus water immersion resistance. IP68 on select high-current models for the most demanding outdoor deployments.
Highest flame-retardant rating for polymer housings — self-extinguishing within 10 seconds. Required for fire-safety compliance on commercial and residential builds.
CNCOB's entire manufacturing operation operates under ISO 9001 quality management, with ISO/IEC 27001 information security accreditation also held.
MC4 connectors comply with relevant IEC photovoltaic standards governing contact resistance, current capacity, and environmental durability.
Internal testing laboratory accredited by CNAS (China National Accreditation Service). All production batches tested and fully documented.
CE conformity marking confirms compliance with EU safety, health, and environmental protection requirements — essential for European distribution.
Regular independent supplier audits are a standard part of CNCOB's quality assurance process. Audit reports available to qualified B2B buyers.
Compare key technical parameters across CNCOB's MC4 product range for precise specification matching.
| Product | Voltage | Max Current | IP Rating | Cert. | Temp. Range | Housing |
|---|---|---|---|---|---|---|
| Standard MC4 Male/Female Connector | 1000V DC | 30A | IP67 | ✓ TÜV / IEC | −40°C ~ +90°C | PPO |
| IP68 50A T/H-Shape Connector | 1000V DC | 50A | IP68 | ✓ UL94-V0 | −40°C ~ +90°C | PPO + Cu |
| TÜV Cable End MC4 Connector | 1000V DC | 30A | IP67 | ✓ TÜV Rheinland | −40°C ~ +85°C | PPO |
| Panel-Mounted MC4 Connector | 1000V DC | 30A | IP67 | ✓ IEC | −40°C ~ +85°C | PPO Plug |
| Fuse-Integrated MC4 (with Diode) | 1000V DC | 15A | IP67 | ✓ Safety Cert. | −40°C ~ +85°C | PPO |
| MC4–MC4 Extension Cable | 1000V DC | 30A | IP68 | ✓ IEC / UL | −40°C ~ +90°C | PV Cable |
| MC4 to XT60 Adapter Cable | 1000V (MC4) | 30A | IP67 (MC4) | ✓ CE | −40°C ~ +85°C | PVC / Cu |
| MC4 to SAE Adapter Cable | 1000V (MC4) | 10A | IP67 (MC4) | ✓ CE | −40°C ~ +85°C | PVC / Cu |
| 4-in-1 Multi-Adapter MC4 Cable | 1000V (MC4) | 28A | IP67 (MC4) | ✓ CE | −40°C ~ +85°C | PVC / Cu |
Common questions from wholesale buyers, distributors, and project developers about CNCOB MC4 products.
