Product Description
50A MC4 Connector for 1000V Solar PV Systems
The 50A MC4 Connector is a photovoltaic cable connector designed for electrical connections in compatible 1000V DC solar power systems. With a rated current of 50A, it provides a connector option for solar modules, photovoltaic string circuits, DC collection equipment and inverter installations.
The connector features male and female mating components, crimp-type conductor contacts and a snap-lock mechanism. Its insulating housing is designed to support outdoor photovoltaic applications while protecting the internal connection components from environmental exposure.
The 1000V 50A configuration is intended for equipment requiring a suitably rated PV connector. Final selection should account for system current, cable dimensions, operating conditions and mating compatibility.
Key Features of the 50A MC4 Connector
1. 1000V DC and 50A Electrical Rating
The 50A MC4 Connector is designed for photovoltaic cable connections with a rated voltage of 1000V DC and a rated current of 50A.
It provides an electrical connection interface for compatible solar modules, photovoltaic string wiring, combiner boxes and inverter equipment. Connector selection should consider conductor cross-section, ambient temperature and the current-carrying requirements of the complete PV installation.
2. High-Strength Insulating Housing
The MC4 connector series uses PPO/PA engineering plastic to provide electrical insulation and mechanical support for internal connection components.
The housing is intended for outdoor photovoltaic installations where resistance to environmental exposure, heat and mechanical wear is important.
Its insulated structure helps separate conductive terminal components from surrounding equipment and supports proper cable connection assembly.

3. Copper Contacts with Crimp Termination
The connector features copper conductive contacts designed for crimp-type photovoltaic cable termination.
The crimp connection structure allows compatible conductors to be secured inside the terminal contacts using suitable tools and installation procedures.
Proper conductor preparation, contact selection and crimping are especially important for the 50A configuration, where the complete connection must accommodate the specified operating current.

4. Sealing Ring and Snap-Lock Connection
The MC4 connector series incorporates sealing components and a mechanical snap-lock structure for compatible male and female connector halves.
The sealing arrangement is intended to protect the connection interface from dust and moisture, while the locking mechanism helps retain the connector halves during normal operation.
The supplier’s general MC4 specifications indicate IP67 protection. Correct assembly and cable sealing are essential for maintaining the intended protection performance.
5. Secure Connection and Installation
The connector’s snap-lock mechanism helps reduce unintended separation of compatible connector halves.
Its crimp-type contacts and plug-in connection design provide an installation option for compatible photovoltaic cable assemblies.
Installers should verify contact and cable compatibility, use suitable assembly tools and follow appropriate PV electrical safety procedures. Connectors must not be disconnected under load unless specifically rated for that operation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | 1000V 50A MC4 Photovoltaic Connector |
| Rated Voltage | 1000V DC |
| Rated Current | 50A |
| Protection Rating | IP67 |
| Contact Resistance | ≤0.5 mΩ |
| Insulation Resistance | ≥1000 MΩ |
| Housing Material | PPO / PA |
| Contact Material | Copper |
| Flammability Rating | UL94 V-0 |
| Cable Cross-Section | 4 / 6 mm² |
| Operating Temperature | -40°C to +85°C |
| Connection Method | Crimp Termination |
| Locking Mechanism | Snap-Lock |
| Configuration | Male / Female |
MC4 Connector Structure and Sealing Design
The 1000V 50A MC4 Photovoltaic Connector combines an insulated housing, conductive contacts, a sealing arrangement and a mechanical locking structure for compatible photovoltaic cable connections.
The connector’s sealing components help protect the electrical interface, while the locking mechanism supports secure mating between compatible connector halves.
Correct cable preparation, crimp termination and connector assembly are essential for maintaining connection performance in solar photovoltaic installations.

Applications of the 50A MC4 Connector
Solar Panel Cable Connections
The connector provides a detachable connection option for compatible photovoltaic modules and PV cable assemblies.
Solar Combiner Boxes
Can be considered for solar combiner box wiring and DC collection arrangements that require appropriately rated photovoltaic connectors.
Solar Inverter DC Connections
Suitable for compatible photovoltaic cable connections associated with solar inverter input circuits.
Commercial and Utility-Scale PV Installations
The connector may be used in suitably designed commercial rooftop or ground-mounted solar power systems where its voltage, current and installation specifications are satisfied.

Why Choose Our 50A MC4 Connector?
The 50A MC4 Connector combines a 1000V DC rating, crimp-type conductor connection, snap-lock mating structure and insulated housing designed for photovoltaic applications.
Its series-specified IP67 protection and electrical insulation properties provide useful technical considerations for solar equipment manufacturers, photovoltaic system integrators, distributors and EPC contractors.
SOLKV supplies additional MC4 photovoltaic connector configurations with different current ratings, voltage classes and installation structures, helping buyers select suitable products for their projects.
FAQ
What is the rated current and voltage of this 50A MC4 Connector?
This version is specified for a rated current of 50A and a voltage of 1000V DC.
Is this connector suitable for outdoor photovoltaic systems?
The supplied MC4 series specifications list IP67 protection and outdoor-oriented insulating materials. Correct assembly and model-specific verification are necessary.
What cable sizes are supported by the 50A connector?
The general product documentation lists 4 mm² and 6 mm² photovoltaic cables. The actual 50A contact and cable combination should be confirmed before installation.
Can the 50A MC4 Connector be used with other connector brands?
Only verified mating-compatible connector halves should be connected. Similar-looking photovoltaic connectors may have different contact or locking specifications.
Can this connector be installed in a 1500V DC photovoltaic system?
No. This version is specified for 1000V DC. A connector with a verified 1500V DC rating should be selected for higher-voltage installations.
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