Stäubli MC4-plug PV-KST4/6X-UR male connector.

The Stäubli MC4-plug PV-KST4/6X-UR is an original MC4 male photovoltaic connector designed for secure and reliable DC connections in solar power systems. It is intended for 4–6 mm² PV cables with an outer cable diameter of 5.5–7.4 mm, making it ideal for photovoltaic installations using thicker cable insulation than the standard I version. The connector is fully compatible with the original MC4 and MC4-Evo connector families.

Built with Stäubli's proven MULTILAM contact technology, the PV-KST4/6X-UR ensures consistently low contact resistance and long-term electrical performance. Designed for demanding outdoor environments, it provides IP65/IP68 protection when mated, a secure locking mechanism, and approvals for 1100 V DC (IEC) and 1500 V DC (UL) applications.

Key Features

• Original Stäubli MC4 male connector
• For 4–6 mm² PV cables
• Suitable for cable diameters 5.5–7.4 mm
• Rated current up to 39 A
• Rated voltage up to 1100 V DC (IEC)
• Rated voltage up to 1500 V DC (UL)
• Proven MULTILAM low-resistance contact technology
• Compatible with MC4 and MC4-Evo connector systems
• UV, weather, and corrosion resistant
• IP65/IP68 protection when mated
• Secure locking mechanism and crimp connection
• Designed for long-term outdoor photovoltaic installations

The Stäubli MC4-plug PV-KST4/6X-UR delivers a secure, weather-resistant connection for reliable, high-performance photovoltaic systems.

More information about MC4-plug PV-KST4/6X-UR:

• Datasheet