The Siemens SENTRON 3VA1110-1AA36-0JA0 is a 3-pole switch disconnector in MCCB design, rated at 100 A continuous current across the full operating temperature range from 40 °C to 70 °C — no derating needed up to the 70 °C ceiling. It is built on the IEC frame 160 platform and intended for isolation and switching duty where overload or short-circuit protection is handled separately upstream or by a downstream device.
That covers most 400 V and 480 V distribution panels cleanly, and the DC rating handles battery or UPS circuits up to 500 V. Mechanical service life is 15 000 operating cycles, typical for a disconnect switch in this frame class — fine for infrequent isolation, not for daily motor starting.
It uses front terminal connections for the main circuit, with lug-type terminals. Maximum power loss is 38 W at rated current; plan for that heat dissipation inside the enclosure, especially if multiple units are ganged.