What this breaker is and what the ratings mean
The Siemens 3VA1110-6MH32-0JA0 is a 3VA1 IEC frame 160 molded-case circuit breaker rated for 100 A continuous current with a breaking capacity class H of 70 kA at 415 V AC — that 70 kA Icu means it can safely interrupt a short-circuit fault of that magnitude without welding its contacts or rupturing the case, which is the figure that governs upstream breaker coordination and panel SCCR compliance. It is a 3-pole unit fitted with a TM120M thermal-magnetic trip — the thermal element provides overload protection for motor circuits, while the magnetic element handles short-circuits with an adjustable instantaneous trip range of 5 to 15 times the rated current (Ii = 5...15 x In), so you can dial in the magnetic pickup to coordinate with downstream loads without nuisance tripping on inrush. The part includes a shunt trip (STL) rated for 110-127 V DC or AC 50/60 Hz — that is a remote-trip coil that lets a safety PLC or emergency-stop circuit kill the breaker from a distance, which is standard for motor control centers and automated lines where you need to drop power without walking to the panel. The description notes it is for starter protection with an AM (adjustable magnetic) module, but it ships without overload protection — meaning it is designed to pair with a separate overload relay (like a Siemens 3RU or 3RB) for full motor-starting duty; the TM120M trip handles the short-circuit side only.
Lifecycle and sourcing reality
Sourced and quoted to order here against an RFQ; availability and current pricing are confirmed at quote time through independent industrial-automation distribution.
Where this breaker fits on the line
Mounts in a standard panel or MCC bucket on a DIN rail or direct-mount base — the 3VA1 frame is the compact IEC design that saves rail space compared to older 3VF or 3VL frames, and the nut keeper kit (included per the description) simplifies panel-builder torqueing on the main lugs. The shunt trip coil at 110-127 V DC/AC means it works on common control voltages found in North American and European panels — just verify the control transformer taps match the coil rating before wiring.