The Siemens 3VA2563-7HN32-0AE0 is a 3-pole molded-case circuit breaker from the 3VA2 IEC frame 1000 line, sized for 630 A continuous current and rated for a 110 kA breaking capacity at 415 V (Icu, class C). It carries the ETU350 electronic trip unit configured for LSI protection: long-time (L) overload adjustable Ir=250 A to 630 A, short-time (S) pickup Isd=1.5 to 10 x Ir, and instantaneous (I) fixed at Ii=12 x In. The LSI curve lets you coordinate with downstream breakers and upstream transformer protection — the short-time delay band is what prevents nuisance tripping on motor inrush or capacitor bank switching. The nut keeper kit and four auxiliary switch changeover contacts (H) are factory-fitted.

Siemens 3VA2563-7HN32-0AE0 Circuit Breaker, 630A, 110kA @ 41
Siemens 3VA2 IEC frame 1000 circuit breaker, 3-pole, breaking capacity class C, Icu=110kA @ 415V, ETU350 LSI, In=630A, nut keeper kit, 4 auxiliary switch changeover H.
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Frequently asked questions
Where can I buy the 3VA2563-7HN32-0AE0 and get a price?
This part is available to order through independent distribution. Submit an RFQ — availability and current pricing are confirmed at quote time.
What does the Icu=110 kA @ 415 V rating mean for my panel?
The Icu of 110 kA at 415 V is the ultimate breaking capacity — the maximum fault current the breaker can safely interrupt once. In a high-fault panel (e.g., near a large transformer), this rating ensures the breaker clears the fault without rupturing, preserving selectivity with upstream protective devices.
What does the ETU350 LSI trip unit cover?
The ETU350 provides LSI protection: long-time (L) overload adjustable from 250 A to 630 A, short-time (S) pickup from 1.5 to 10 x Ir, and instantaneous (I) fixed at 12 x In. The short-time delay allows coordination with downstream breakers and avoids nuisance trips on motor starting or capacitor bank inrush.