The 3VA2040-5HN36-0AF0 is a 3-pole IEC frame 100 circuit breaker with clamp terminals, sized for standard DIN-rail mounting in a distribution or motor control center panel.
Protection profile
The ETU350 electronic trip unit provides LSI protection: long-time (Ir) adjustable 16 A to 40 A, short-time (Isd) 1.5 to 10 × Ir, and instantaneous (Ii) fixed at 12 × In. The 40 A rated current (In) with the Ir range means this breaker covers motor feeders or distribution circuits where the load current is set via the dial, not a fixed thermal element. The electronic trip gives tighter tolerance and better repeatability than a thermal-magnetic on the same frame.