The SENTRON 3VA1110-1AA46-0AG0 is a 4-pole switch disconnector on the IEC frame 160, rated at 100 A, with clamp terminals. It carries no overload or short-circuit protection — it is a pure isolating and switching device, not a circuit breaker. The build includes one auxiliary switch (changeover) and one trip alarm switch (changeover) for status feedback back to the PLC or annunciator.
Where it lands in the panel
This is a panel-mounted disconnect for a 100 A branch circuit where you already have upstream overcurrent protection. The 4-pole version switches all three phases plus neutral. The auxiliary and alarm contacts let the controls know whether the disconnect is open or closed and whether it has tripped — useful in a cement plant where a locked-out motor feeder means the kiln feed stops and you need that status in the DCS without walking the MCC floor.