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Solar connectors not manufactured by Stäubli are sometimes described by their manufacturers as being “Stäubli compatible” or “MC4 compatible” due to their ability to mate with Stäubli MC4 connectors. This, however, can be misleading: by doing so, they do not conform to the requirements for a safe electrical connection with long-term stability. For that reason, Stäubli cannot accept any liability if non-approved connectors from any other manufacturer are mated with Stäubli original MC4 connectors.

Stäubli has not recognized any products from third-party suppliers as being plug-compatible with the MC4 family and does not intend to do so in the future. Using unsuitable components or combining plugs from different manufacturers poses significant risks (high failure rates, fire, etc.) and is not permitted under any circumstances. Please note that all certifications are voided when such a connector combination is used.