MCCB for line protection — 100 A, 3-pole, 242 kA interrupting
The Siemens SENTRON 3VA2110-6HN32-0AJ0 is a 3-pole molded case circuit breaker rated for 100 A continuous current, designed specifically for line protection duty. Its interrupting capacity reaches 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V — meaning it can safely clear faults across a wide voltage range without cascading upstream. The 800 V rated insulation voltage gives headroom for 480 V and 600 V class systems.
What the ratings mean for panel fit
At 105 mm wide, 181 mm tall, and 86 mm deep, this MCCB fits standard SENTRON panel footprints and mounts on a DIN rail or direct panel. The 100 A rating holds across the full ambient range from -25 °C to 70 °C with no derating — so it delivers its full continuous current even in a warm enclosure. Auxiliary switch configuration includes 2 auxiliary switches plus 1 trip alarm switch (HP type), giving status feedback for PLC or indication circuits.