The Siemens 3VM1110-5EE36-0AA2 is a 3-pole IEC frame 160 molded case circuit breaker (MCCB) with a 100 A rated current and a breaking capacity class M delivering 55 kA Icu at 415 V.
The TM220 thermal-magnetic trip unit provides overload protection adjustable from 70 A to 100 A (Ir), letting you dial in the exact continuous current limit for the downstream cable or load. Short-circuit protection is fixed at 10 × In (1000 A), which is a standard magnetic instantaneous pickup for general distribution — it rides through motor inrush but clears hard faults fast. The ATFM designation indicates the trip unit type and function for this line.
Panel integration
The 3-pole, 100 A footprint fits standard Siemens 3VM1 panel cutouts and busbar systems. Terminal connection type is listed as terminal connection — verify lug size against your cable cross-section during the takeoff.