The original file is from the CAD of the Annex K3 converted to F3D but I linked the STL for simplicity. This supports 221-412, 221-413, and 221-415. You can select any number of WAGOs connectors per mount.
License: https://github.com/Annex-Engineering/ANNEX-Engineering-License-Agreement/blob/main/LICENSE.md
The author remixed this model.