MC4 Connectors for Solar Power Applications

At Celestix Industries, we manufacture MC4 connectors built to IEC 62852 standards for use in modern solar photovoltaic (PV) installations. Designed with zinc-plated copper contacts and a UV-resistant housing, these connectors ensure low-resistance power transfer while maintaining stable performance in harsh outdoor environments.

Product Overview: MC4 Connector (Male & Female Pair)

• Rated Current: 30A (Max)
  
  

• Rated Voltage: 1000V DC
  
  

• Contact Material: Zinc-Plated Copper
  
  

• Insulation Resistance: >500 MΩ
  
  

• Contact Resistance: <0.5 mΩ
  
  

• Ingress Protection: IP67 (Mated)
  
  

• Test Voltage: 6000V DC
  
  

• Temperature Range: -40°C to +85°C
  
  

• Standards: IEC 62852 / UL 6703
  
  

• Compliance: RoHS, REACH
  
  

• Application: Solar PV modules, combiner boxes, inverters
  
  

Key Features

• High-conductivity zinc-plated copper contacts
  
  

• UV-stabilized housing for outdoor longevity
  
  

• IP67 waterproofing for dust + moisture protection
  
  

• Built to IEC 62852 for global PV compatibility
  
  

• Fully RoHS & REACH compliant
  
  

Typical Applications

• Solar PV module interconnections
  
  

• Renewable DC power distribution
  
  

• Combiner box linkages
  
  

• Off-grid + hybrid inverter connections
  
  

• Residential, commercial, and utility-scale solar
  
  

Manufacturing Capabilities

Celestix manufactures MC4 connectors using precision moulding and automated assembly. Each batch undergoes:

• Contact resistance testing
  
  

• Dielectric withstand testing
  
  

• IP67 sealing verification
  
  

• Dimensional inspection
  
  

• Mechanical pull + retention force checks
  
  

Technical Excellence & Quality Assurance

All MC4 connectors are produced using zinc-plated copper contacts with PPO/PC high-durability housings.

Tested to:

• Contact Resistance: <0.5 mΩ
  
  

• Insulation Resistance: >500 MΩ
  
  

• Dielectric Strength: 6000V DC
  
  

• IP Rating: IP67
  
  

• Temperature Endurance: -40°C to +85°C
  
  

System Certifications:

ISO 9001, IATF 16949, ISO 14001, ISO 45001

Customization Options

• Cable cross sections: 2.5mm² – 10mm²
  
  

• Locking mechanisms: Standard / Snap-Fit
  
  

• Termination: Crimp / Solder
  
  

• OEM branding and private labeling
  
  

• Pre-terminated MC4 cable sets (plug-and-play)
  
  

Compliance

• RoHS & REACH compliant
  
  

• IEC 62852 conformity
  
  

• UL 6703 performance validation
  
  

• Every lot includes:
  
  

• XRF plating verification
  
  

• Traceability documents
  
  

• Full testing certifications
  
  

Documentation & Support

• Technical datasheets
  
  

• Dimensional drawings
  
  

• RoHS/REACH declarations
  
  

• Electrical + mechanical test reports
  
  

• OEM integration support
  
  

Request a Quote or Sample

Celestix Industries manufactures MC4 connectors designed for long-life, high-conductivity solar power systems. Ideal for OEMs, solar EPCs, and cable harness manufacturers.

📧 Email: info@celestixindustries.com
🔗 Request a Quote: Get a Quote