3-3 DIN Mounting Fast Wire Cable Connectors / Wago Connector, wago conector
These things are super convenient to assist in your wiring. These simply clamp connect your wires to allow you to easily connect/disconnect. These mount directly onto your din rails to make your wiring a little easier
Wire Cable Connectors Splicing Connectors Product Short Nut Multi Wire Splicing Connector Mount Terminal Blocks Terminal Blocks Kit
Source: viewngr.com