Robust even for tough construction site use: The rubber coupling is made from extremely durable and well-processed rubber, providing reliable protection against various external factors such as drops and impacts. Compatible with various cable sizes: The full rubber coupling (230V/16A) allows for the connection of cables up to a maximum of 2.5 mm². Reliable protection: The rubber coupling is equipped with a stable protective cap to ensure safe use while also protecting against dirt. Weatherproof and resilient: Effective protection (IP44) against foreign objects and splashes for increased safety and longevity. German quality and reliability: With the quality mark "Made in Germany," the coupling stands for the highest standards and reliability.