What the ratings mean for the panel
The Siemens SENTRON 3VA1110-4ED16-0AA0 is a 1-pole molded case circuit breaker (MCCB) rated for line protection in distribution panels. Its 100 A continuous rating at 45 °C and 50 °C holds flat, then derates to 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C — the thermal curve matters if this breaker sits in a crowded, high-ambient enclosure. The interrupting ratings tell the real story: 75.6 kA at 240 V AC handles high-fault utility feeds, while 9 kA at 415 V AC covers three-phase industrial service. That 75.6 kA figure at 240 V means this breaker can be placed near the service entrance where available fault current is high, without cascading upstream. The TM210 thermal-magnetic release provides LI (long-time and instantaneous) protection, with the instantaneous pickup fixed at 1000 A — no adjustment range on the magnetic trip, so coordination studies need to account for that fixed threshold.
Panel integration and footprint
The 3VA1110-4ED16-0AA0 occupies a 25.4 mm (1 in) width per pole — standard for a 1-pole MCCB in the SENTRON 3VA family. Depth is 70 mm (2.76 in), height 130 mm (5.12 in). It mounts on a DIN rail or directly to a backplate via the breaker's integrated clips. The IP40 protection rating on the front means it's protected against tools and small wires entering the enclosure, but not against water ingress — suitable for indoor panel installation, not washdown environments. Maximum power dissipation is 8.33 W, which factors into enclosure thermal calculations when grouping multiple breakers.
DC capability and auxiliary contact note
For DC circuits, the maximum rated operational voltage Ue is 125 V DC — useful for control power or battery-backed loads, but not for higher-voltage DC bus applications. The breaker ships without auxiliary contacts (0 CO contacts for auxiliary contacts), and no motor drive option is available on this variant. No communication function or ground-fault monitoring is built in; this is a straight thermal-magnetic breaker for basic overcurrent protection. Neutral conductor upgrade or retrofit is not supported on this 1-pole unit.