Product Identity and Core Ratings
The Siemens 3VA2110-5HN32-0KL0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in three-phase distribution systems. It carries a continuous current rating of 100 A across the full ambient temperature range from 40 °C to 70 °C, meaning no derating is required for installations up to that ceiling — a practical advantage for densely packed enclosures where internal heat rise is a concern. Breaking capacity is declared at five voltage levels: 187 kA at 240 V, 121 kA at both 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. The 187 kA figure at 240 V is the headline interrupt rating; the 121 kA at 415 V covers the common European low-voltage distribution level. These values allow the breaker to be applied in high-fault-current scenarios typical of industrial main feeders or large sub-distribution boards.
Physical Configuration and Auxiliary Wiring
This is a 3-pole unit with a width of 105 mm, depth of 86 mm, and height of 181 mm. The depth dimension is the critical one for panel clearance behind the mounting surface — 86 mm means it fits standard 200 mm deep enclosures with room for rear cable routing. The width of 105 mm is the DIN-rail or bolt-on footprint; verify that the panel cutout or busbar spacing accommodates this pitch before committing the BOM line. The breaker ships with a factory-installed auxiliary switch block configured as 2 auxiliary switches + 1 trip alarm switch + 1 electrical alarm switch (HQ designation). A shunt trip (STL) is also fitted as the auxiliary release. This means the unit arrives ready for remote tripping and status feedback — no separate accessory ordering for basic alarm and trip functions. The shunt trip is a voltage-trigger device, confirmed by the voltage trigger flag on the spec record.
Lifecycle and Sourcing Posture
Sourcing is handled against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. The part carries no communication function and no ground-fault monitoring version, so if the application requires these, a different variant from the 3VA2 family would be needed.
Environmental and Compliance Parameters
Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The maximum power loss is 10 W, which is modest for a 100 A MCCB and helps keep enclosure thermal rise manageable. The trip indicator is present, giving a visual flag on the breaker face after a fault event — useful for maintenance walk-downs.