Wago, the expert in connection technology, developed the 2773 Series based on the market and user demands to provide versatile, space-saving and reliable conductor termination. The 2773 Series is a modern version of the original Wall-Nuts and is the compact, clear choice for any splicing job. Push your way to fast and reliable connections. That is what's behind the 2773 Series Connector. This is thanks to its innovative spring design. The ease of conductor termination is achieved with low insertion forces. But despite these low insertion forces, the retention forces of this connector far exceed the standard forces required. No tools needed. Thanks to the safety inspection window, you can ensure a proper termination every time. Along with that, the 2773 Series includes a built in test port. You can find this feature located opposite the conductor entry granting easy access to check connectivity. Lastly, the transparent housing allows users to see that the wire is inserted all the way to the backstop and in the correct position.