What this MCCB delivers
The Siemens SENTRON 3VA2010-5HL32-0KA0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That thermal stability makes it a solid pick for warm enclosures or panels near process heat. Breaking capacity hits 187 kA at 240 V, drops to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 3 kA at 690 V. At 415 V — common in industrial distribution — it clears 121 kA, which covers most utility-feed fault levels without needing a current-limiting upstream device. Rated insulation voltage is 800 V, so it's suitable for 690 V line-to-line systems with margin. The adjustable trip range spans 150 A to 1 200 A, meaning the same frame can be tuned for different load sizes during commissioning — useful when panel designs evolve.
Panel fit and wiring
Dimensions are 181 mm high, 105 mm wide, 86 mm deep. The 105 mm width is a standard 3-pole MCCB footprint — it fits most DIN-rail or panel-mount bases without crowding adjacent breakers. Depth of 86 mm leaves room for rear-access busbars or cable ducts in a 200 mm deep enclosure. This unit includes a shunt trip (STL) auxiliary release for remote tripping — wired to an E-stop or PLC digital output, it drops the breaker on command. There is no undervoltage release, no ground-fault monitoring, and no communication module; it's a straightforward line-protection breaker with a single remote-trip feature. Maximum power loss is 13.5 W — negligible for panel thermal budgeting, but worth noting if the breaker is in a sealed, uncooled cabinet with other high-current devices.