Pronto Energy 
MC4 MC4 Photovoltaic Connector
The MC4 solar DC connector provides reliable, weatherproof connections for photovoltaic systems rated up to 1000V and 30A. Its IP67 sealed design and locking mechanism ensure secure, long-life connections in solar installations.
Applications & circuit protection
The MC4 PV connector is the industry-standard DC connector for solar panels, providing quick, secure and weatherproof cable connections.
- Solar panel string connections
- PV combiner box wiring
- Inverter DC connections
- Solar system extension cables
Construction & operating reliability
The MC4 features a precision locking mechanism, IP67 sealing, tinned copper contacts and UV-resistant housing for reliable outdoor service.
- IP67 weatherproof sealing
- Secure locking mechanism
- Tinned copper contacts
- UV-resistant housing
Technical Parameter
| Parameter | Value |
| Connector system | MC4-type, Φ4 mm |
| Application | Photovoltaic DC cable connection |
| Rated voltage | 1000 / 1500 V DC |
| Rated current | 30 / 45 / 65 A |
| Test voltage | 6 kV, 50 Hz, 1 min |
| Ambient temperature | -40°C to +90°C (IEC); -40°C to +75°C (UL) |
| Upper limiting temperature | +105°C (IEC) |
| Protection level | IP67 mated; IP2X unmated |
| Contact resistance | 0.5 mΩ |
| Safety class | II |
| Contact material | Tin-plated copper alloy |
| Insulation material | PC/PPO |
| Locking system | Snap-in |
| Flame class | UL94V-0 |
| Salt-mist test | IEC 60068-2-52, severity 5 |
Standards & certifications
The MC4 is designed in accordance with IEC 62852 and is available with TUV, CE certifications. Certification documentation can be provided according to project and destination-market requirements.
- Standard: IEC 62852.
- Certifications: TUV, CE.
- Protection level: IP20 (where applicable).
OEM & B2B supply support
KORLEN supports distributors, OEM manufacturers, electrical contractors and project buyers with product selection, samples, technical documentation and commercial quotations.
If the MC4 configuration does not match your project, send us the required specifications, quantity and destination market. Our team can help identify a suitable configuration.
- Samples available for product evaluation.
- Flexible quantities for project and B2B purchasing.
- OEM and ODM support for suitable projects.
- Technical documentation and certification support available.
Frequently Asked Questions
The MC4 connects solar panels, combiner boxes and inverters in photovoltaic systems with a secure, weatherproof DC connection.
The MC4 is rated for 1000V DC and 30A.
The connector provides IP67 protection against water and dust ingress.
Yes, its IP67 sealing and UV-resistant housing make it ideal for permanent outdoor solar installations.