The Siemens SENTRON 3VA2110-5JP32-0AD0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current at ambient temperatures from 40 °C all the way up to 70 °C — no derating needed across that span, which is rare and saves headroom calculations on a warm panel. It's built for line protection, meaning it sits at the feeder or branch to guard against overloads and short circuits, with a communication function onboard for integration into a monitored distribution system.
Breaking capacity and selectivity
This MCCB delivers a serious interrupting rating: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and still 3.7 kA at 690 V. For a 100 A frame, that 187 kA at 240 V means it can handle a high-fault utility feed without upstream fuses — useful when you're coordinating selectivity downstream and need the breaker to clear a dead short without taking the whole panel out.
Physical fit and panel integration
Dimensions are 181 mm high, 105 mm wide, 86 mm deep — a standard 3-pole MCCB footprint that drops into most Siemens SENTRON distribution panels without rework. The 86 mm depth is shallow enough to clear a 200 mm deep enclosure door. Power loss is 10 W maximum, so heat buildup in a sealed cabinet is manageable.
What the continuous rating means in practice
The 100 A continuous rating holds flat from 40 °C to 70 °C ambient — no derate curve to chase. That's a real advantage in a hot industrial enclosure or near a furnace line. Insulation voltage is rated 800 V, so it's comfortable on 480 V and 600 V systems with headroom to spare.