The Siemens SENTRON 3VA2163-7MS36-0KH0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous at 40 °C ambient, with a thermal-magnetic trip unit adjustable from 189 A minimum to 945 A maximum — sized for motor and starter protection in industrial control panels. Its interrupting capacity hits 330 kA at 240 V AC and still holds 242 kA at 415 V and 440 V, dropping to 187 kA at 500 V and 3.7 kA at 690 V — that SCCR headroom means it clears high-fault bolted faults without cascading upstream, critical for panel selectivity studies. The breaker carries a shunt trip release (STL) and is factory-equipped with 2 auxiliary switches plus 1 trip alarm switch (HQ configuration), giving the controls integrator direct feedback into the PLC or safety relay without external interface modules.
Lifecycle and Sourcing Reality
For compliance documentation, Siemens provides the standard SENTRON declaration pack: CE marking per Low Voltage Directive 2014/35/EU, UL 489 listing, CSA C22.2 No. 5, and IEC 60947-2. RoHS and REACH declarations are available on request.
Integration and Mounting
The 3VA2163-7MS36-0KH0 occupies 105 mm width, 181 mm height, and 86 mm depth — a standard SENTRON 3VA frame footprint that drops into existing MCCB panel cutouts without rewiring if the panel was specified for the same frame family. It is designed for fixed mounting on a mounting plate or DIN rail adapter (not included), with tunnel-type terminals accepting copper or aluminum conductors. The 63 A rating is maintained across the full -25 °C to 70 °C operating range — no derating curve to manage in warm enclosures.
Selectivity and Coordination
With a trip indicator and voltage trigger (shunt release), this MCCB supports zone-selective interlocking (ZSI) when paired with a compatible upstream breaker — the 330 kA IC at 240 V ensures full discrimination down to the 189 A minimum trip setting, holding the arc energy inside the breaker rather than letting it propagate to the busbar.