What this MCCB delivers for the panel
The Siemens SENTRON 3VA2010-6HM36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full -25 °C to 70 °C operating range — no derating needed up to the enclosure ambient limit. Its design is line protection, meaning it sits at the feeder or main breaker position in a distribution panel, not on a specific motor or load branch. Breaking capacity is the headline selector: 242 kA at 240 VAC, 187 kA at 415 VAC and at 440 VAC, 121 kA at 500 VAC, and 3 kA at 690 VAC. That 242 kA figure at 240 V covers high-fault service-entrance positions in North American panels; the 187 kA at 415 V meets the typical utility fault level in European 400 V distribution. At 690 V the 3 kA rating drops sharply — this is not the breaker for 690 V motor circuits. Rated insulation voltage is 800 V, so the internal clearances and creepage paths are sized for that ceiling even though the interruption capability at that voltage is limited. The ground-fault monitoring version uses summation current formation on the L-conductor — it sums the phase currents to detect imbalance, which is the standard residual-current approach inside an MCCB.
Physical fit and panel integration
Dimensions: 181 mm tall, 105 mm wide, 86 mm deep. The 105 mm width (4.13 in) is the standard three-pole MCCB footprint for the SENTRON 3VA frame.
What the ratings mean for coordination
The adjustable thermal-magnetic trip unit has a full-scale value of 100 A and an initial setting of 20 A. The listing does not specify the trip-unit type (electronic vs. thermal-magnetic), but the presence of a full-scale value and an initial setting suggests a fixed or limited-adjustment thermal-magnetic unit. For selectivity studies, the 187 kA at 415 V is the value to use for IEC 60947-2 coordination with downstream breakers — that is the standard's required breaking capacity at the service voltage. Maximum power loss is 13.5 W at rated current. In a sealed, high-density panel, that heat must be dissipated — account for it in the thermal budget, especially if multiple breakers are ganged in a single enclosure.