The Siemens 3VM9383-0JB13 is a SENTRON TA1.5 circular conductor terminal, sold as a pack of three, designed for terminating one cable per unit onto 3VM 400/630 molded-case circuit breakers. This is a panel-mount accessory — it bolts onto the breaker's line or load lugs, so the wireman needs clearance for the torque wrench and the 1.1 in strip length.
What the torque and strip length mean on the bench
The 1.1 in strip length is generous, which helps avoid under-stripping on large cable, but also means the conductor jacket must be cut cleanly back that far to ensure full contact inside the connector barrel. No control-wire tap is integrated, so this is a straight power connection — no auxiliary sense lead off the same lug.