The SENTRON 3VA1110-1AA42-0JH0 is a 4-pole switch disconnector in MCCB (moulded-case circuit breaker) design, rated for 100 A continuous at 40 °C through 70 °C — no derating across the full operating temperature range. It is built to the IEC frame 160 standard and serves as a manual load-break disconnect, not a protective device: it has no overload or short-circuit protection elements. The part carries a shunt trip (STL) release rated 110–127 V DC and AC 50/60 Hz, plus a complement of 2 auxiliary switches and 1 trip alarm switch (HQ design).
The shunt trip operates on 110–127 V DC or AC 50/60 Hz; verify control voltage matches your trip circuit before specifying. The front terminal arrangement accepts busbar connection, typical for panel feed-through or distribution blocks.
Integration notes — panel and wiring
The 3VA1 frame mounts with a nut keeper kit (included per the description). Dimensions: 70 mm depth, 101.6 mm width, 130 mm height — fits standard MCCB cutouts in switchgear panels. Mechanical service life is 15 000 operating cycles typical. The auxiliary switch complement (2 CO + 1 trip alarm) provides status feedback for PLC or indication lamps without adding external relay blocks.