This Siemens SENTRON 3VA2010-5HN32-0DA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed until you hit the top of that band. That 100 A holds steady at every temperature step in between, so you're not losing headroom on a hot summer day in a packed enclosure. The interrupting ratings are where this thing earns its keep in a distribution panel: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V.
Built-in undervoltage release — what it saves you in the field
The UVR is designed as an auxiliary release, not a shunt trip, so it's the right choice for undervoltage protection per code.
Current lifecycle, dimensions, and panel fit
Maximum power loss is 16 W at rated current. That covers unheated warehouses and outdoor enclosures in most climates.