The Siemens SENTRON 3VA2110-7MN36-0KL0 is a 3-pole molded case circuit breaker (MCCB) built for motor protection in industrial panels. It carries 100 A continuously across the full ambient range from 40 °C to 70 °C with no derating — that's a solid 100 A at 70 °C, which matters when the panel sits next to a kiln or preheater tower where the cabinet air hits 60 °C and stays there. The interrupting ratings climb to 330 kA at 240 V and 242 kA at 415 V, so it handles high-fault conditions without cascading upstream. Phase failure detection is built in, and the trip indicator plus voltage trigger give you a clear fault signal without opening the door.
What the ratings mean for the panel
The 100 A rating is flat from 40 °C to 70 °C — no thermal derating curve to calculate. That's unusual for an MCCB; most lose 10–20 % above 50 °C. Here, the 100 A at 70 °C means you can size it for a 100 A motor feeder in a hot enclosure and not oversize the breaker. The 330 kA interrupting capacity at 240 V covers most industrial secondary-fault scenarios; at 415 V it still holds 242 kA, which is enough for a 400 V distribution board with a transformer upstream. The 3-pole body with shunt trip (STL) and the auxiliary switch complement (2 aux + 1 trip alarm + 1 electrical alarm HQ) lets you wire remote tripping and status feedback without adding external relays.
Dimensions and panel fit
The breaker measures 86 mm deep, 105 mm wide, and 181 mm high. That 105 mm width for a 3-pole 100 A MCCB is standard for the SENTRON 3VA frame — it drops into a panel cutout or DIN-rail mount without surprises. The 86 mm depth leaves room for rear-connected busbars or cable lugs in a standard 200 mm deep enclosure.