Connector piece; 3-pole; for sheet cutouts; plastic; black. WINSTA® MINI 3-pole cover. The cover from the WINSTA® MINI family is the intelligent solution for smooth electrical installation. The WINSTA® product family from WAGO is complemented by a comprehensive range of accessories. Due to its particularly compact dimensions, our WINSTA® MINI connector system with Push-in CAGE CLAMP® spring connection technology is especially suitable for tight spaces, making it ideal for installation in confined areas. WINSTA® MINI solutions for your electrical installations – protected against incorrect connections and maintenance-free. The WINSTA® connector system is perfectly tailored to the very high demands of building installations. It makes electrical installations pluggable, thus making them more efficient, safer, and error-free. Thanks to the pre-assembled system solution, both assembly times and installation errors on site are significantly reduced. Choose quality and durability – with WAGO's protection against incorrect connections, electrical installations of multiple electrical components are particularly simplified. Easy tool-free operation, versatile coding options, and quick replacement of faulty units during operation.