The Siemens 3VA1110-6EF36-0AE0 is a 3-pole SENTRON molded case circuit breaker rated for 100 A continuous current (Iu) with a TM240 thermal-magnetic trip unit — the '240' indicates the fixed thermal pickup at 100% of rated current, so it holds 100 A continuously and trips on overload above that threshold without field adjustment. The 220 kA interrupting rating at 240 V tells you this breaker can safely clear a fault up to that level on a 240 V line; at 415 V it still handles 154 kA, and at 690 V it's rated 17 kA. That's a high-interrupting-capacity (HIC) frame — sized for transformer secondaries or large motor branch circuits where fault current runs high. The 4 auxiliary switches (HQ type) give you four form-C contacts for remote status indication — useful for PLC feedback on a body-shop weld line where you need to know the breaker state without walking the panel.
Deployment context
Panel footprint is 76.2 mm wide by 130 mm high by 70 mm deep — standard 3-pole MCCB envelope for DIN-rail or screw-mount backplate.