Is there a model for MC4 solar connectors?
Yes, KNIPEX 97 43 66 for MC4 connectors (up to 6 mm²) and 97 43 200 A for photovoltaics.
Are there VDE models?
Yes, for example the VDE ferrule crimping pliers 97 78 180 T, insulated and tested for live work.
Are they available from stock?
Some are in stock, the rest on order, with fast delivery.