Based on this product's specifications, here are some alternatives and similar models
Erko KLR 35-16 Copper Reducing Connector
Summary description:
The Erko KLR 35-16 is a high-quality copper reducing connector designed for reliable electrical cable connections. This component allows for the transition between conductors of different cross-sections, specifically 35 mm² and 16 mm². It is engineered for durability and optimal conductivity in professional electrical installations, ensuring a secure and efficient connection in various industrial and commercial power distribution systems.