The Siemens SENTRON 3VA2463-5HL32-0KA0 is a 3-pole molded case circuit breaker rated for 630 A continuous current (Iu) at 40 °C, with an ETU320 electronic trip unit and a built-in shunt trip release (STL). At 415 V and 440 V it still holds 121 kA, dropping to 75.6 kA at 500 V and 17 kA at 690 V, so the SCCR headroom is there for most industrial distributions.
Derate linearly: 612 A at 45 °C, 593 A at 50 °C, 575 A at 55 °C, 557 A at 60 °C, 538 A at 65 °C, and 520 A at 70 °C.
Trip unit and release configuration
The ETU320 is a basic electronic overcurrent release — no communication, no ground-fault monitoring, no phase-failure detection. It handles LSI (long-time, short-time, instantaneous) protection curves. The shunt trip (STL) allows remote tripping via a control voltage; the breaker ships with the shunt trip integrated (order code suffix -0KA0 indicates this). No auxiliary contacts are included — if you need status feedback, you'll add them separately. The trip indicator is not present on this variant.