What the ratings mean for fit
The 3VM1110-5EE46-0AA2 is a Siemens 3VM1 IEC frame 160 molded case circuit breaker with a 55 kA breaking capacity at 415 V (class M). That Icu rating means it can safely interrupt a fault current up to 55 kA without self-destructing — critical for high-fault installations like transformer secondaries or large motor control centers where available fault current exceeds 25 kA. The 4-pole configuration with unprotected neutral suits three-phase plus neutral systems where the neutral does not require overcurrent protection. The TM220 thermal-magnetic trip unit provides adjustable overload protection (Ir = 70 A to 100 A) and fixed short-circuit protection at 10× In (1000 A). That 10× Ii setting is typical for motor branch circuits where inrush needs to ride through without nuisance tripping; for a 100 A frame, 1000 A instantaneous pickup clears hard faults fast while ignoring normal starting currents.
Lifecycle and sourcing reality
For BOM freeze or panel build planning: the 3VM1110-5EE46-0AA2 is sourced and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time through independent distribution channels.
Panel integration notes
Mounts on DIN rail or direct panel via the frame mounting points. The 4-pole body occupies roughly 140 mm of DIN rail width — plan the gland plate and wireway fill accordingly. Terminal connections accept copper or aluminum conductors up to the frame rating; torque values per the nameplate.