What This Breaker Carries
The Siemens 3VA1110-4GF42-0KH0 is a 4-pole IEC frame 160 circuit breaker with a 100 A thermal-magnetic trip unit (TM240, ATAM) and a 36 kA breaking capacity at 415 V — class S, meaning it handles moderate fault levels typical of commercial and light industrial distribution without needing a larger frame. Overload protection is adjustable from 70 A to 100 A, and the instantaneous short-circuit pickup is set between 5 and 10 times In (500–1000 A), giving the panel builder room to coordinate with downstream branch breakers. It ships with a factory-fitted shunt trip on the left side rated for 208–277 V AC 50/60 Hz or 220–250 V DC, plus two auxiliary changeover switches — so the remote-trip and status-signal wiring is already in place for a control panel.
Lifecycle and Sourcing Reality
For a BOM line that needs this exact configuration — 100 A, shunt trip, two aux switches — the part is sourced and quoted to order against an RFQ; availability and current pricing are confirmed at quote time.
Panel Integration Notes
The 3VA1 frame 160 mounts on a DIN rail or can be screw-fixed in a distribution board; the 4-pole width occupies four modular spaces, so verify fill factor before laying out the enclosure. The nut keeper kit included with this order code secures the breaker to the mounting plate without loose hardware — a small detail that saves time during panel assembly.