The Siemens 3VA1040-3ED36-0AC0 is a 3-pole IEC frame 100 circuit breaker from the 3VA1 series, rated at 40 A with a fixed thermal-magnetic overload protection (TM210) and a fixed short-circuit protection set at 10 x In. Its breaking capacity class N delivers an Icu of 25 kA at 415 V, which means it can safely interrupt fault currents up to that level on a 415 V three-phase system without upstream cascading — a key spec for panel builders verifying SCCR compliance per IEC 60947-2.
The breaker uses clamp (screw) connections for line and load terminations, and ships with two factory-installed HQ auxiliary switches for status feedback to a PLC or indication panel. It mounts on a standard DIN rail in the enclosure; the 3-pole form factor fits a 3-phase feeder or motor branch circuit.