Stäubli MC4-Evo Connectors

Stäubli is an international specialist in reliable electrical connectors. The MC4-Evo family stands for secure, durable, form-fit connections with low contact resistance and high weather resistance. Modularity and easy assembly reduce installation times and sources of error. Typical applications range from private rooftop systems and commercial roofs to commercial-industrial PV and energy storage solutions.

Connectors for PV and Energy Systems

Stäubli connectors provide stable electrical connections that meet the requirements of modern PV systems: field-ready installation, compatibility with common module connections and consistently low contact losses. In residential and commercial systems, they improve system efficiency and simplify maintenance and expansion. For ground-mounted and storage applications, robust contacts and seals ensure long-term reliability.

Stäubli Connectors at a Glance

  • Stäubli Steckverbinder Set MC4-Evo ready — Complete set for standardized module connections, ideal for fast series installation and replacement.
  • Stäubli Kupplungsstecker MC4-Evo ready — Robust connector solution with high rated current, suitable for roof and field installations.
  • Stäubli Abzweigbuchse MC4-Evo 2 / Abzweigstecker MC4-Evo 2 — Efficiently implement branches and strings; recommended for multi-string layouts and expansions.
  • Stäubli In-line Sicherung MC4-Evo 2 VE10 — Protective component for string fusing, compact installation directly in the cable run.

Technical Features of Stäubli Connectors

This product group is based on precise contact technology for low contact resistance and high current-carrying capacity. Field-ready seals and UV-resistant materials ensure a long service life and protection against environmental influences (e.g., IP-rated versions). Modularity facilitates energy management and system expansions; at the same time, standardized interfaces reduce installation and service effort. Safety-relevant features such as reverse-polarity-protected designs and high thermal stability increase operational reliability.