The Siemens SENTRON 3VA9603-0JJ45 is a circular conductor terminal kit — three units of the TA5.3 wire connector, each accepting four cables from 150 to 300 mm² (300–600 kcmil) in solid, stranded, or finely stranded copper or aluminum. Torque spec is 30 Nm across all conductor types, with a stripped length of 1.50/2.64 inches. This is the accessory set for the plug-in unit 3VA9603-0KP00, not a standalone breaker or switch.
Three TA5.3 connectors, each rated for 30 Nm on solid, stranded, and finely stranded conductors. No control-wire tap (no auxiliary tap terminal). The kit is complete for terminating four large cables per connector — no missing screws or brackets.
Cable range and torque — what it means on the panel
The 300–600 kcmil range (150–300 mm²) covers heavy feeder and main-bus connections common in 400 A to 800 A switchboards. A single torque value of 30 Nm across all conductor types simplifies installation — no need to adjust for solid vs. stranded vs. finely stranded. The stripped length of 1.50/2.64 inches gives enough insertion depth for a secure, low-resistance termination.