The Siemens 3VA1110-5MH32-0HH0 is a 3-pole IEC frame 160 MCCB rated 100 A continuous, with a 55 kA interrupting capacity at 415 V AC (breaking capacity class M). The TM120M trip unit has an adjustable magnetic pickup from 5 to 15 times In. This variant includes a shunt trip (STL) coil rated 12–30 V DC and 24 V AC 50/60 Hz, plus two auxiliary switches (HQ) and one trip alarm switch (HQ). The nut keeper kit is also included.
The 3VA1 frame is a standard IEC 160 A frame size — plan for the same cutout and busbar spacing as other 3VA1 breakers. The shunt trip coil draws its control power from a separate 12–30 V DC or 24 V AC supply; verify the control transformer or DC supply can source the coil's inrush without dropping voltage below the dropout threshold.