The Siemens SENTRON 3VA2225-6KP32-0KA0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C, designed for line protection in distribution panels and industrial switchgear. Its interrupting capacity reaches 242 kA at 240 V and 187 kA at 415 V, giving it the headroom to clear high-fault-current events without cascading upstream — a key parameter for selectivity studies on a plant's main or feeder breaker.
The 250 A frame holds its full rating from 40 °C through 50 °C, then derates linearly to 200 A at 70 °C. Breaking capacity drops from 242 kA at 240 V to 121 kA at 500 V, then sharply to 4.5 kA at 690 V. The adjustable thermal-magnetic trip range spans 375 A to 2,500 A (likely the instantaneous magnetic pickup), allowing coordination with downstream feeders. The continuous rating is fixed at 250 A via the frame and trip unit.
At 105 mm wide, 181 mm tall, and 86 mm deep, this MCCB fits standard SENTRON 3VA panel cutouts and bus-bar centers. The depth of 86 mm (3.39 in) leaves clearance for rear-connected bus bars or cable lugs in a typical 600 mm deep enclosure. Operating temperature range is -25 °C to 70 °C; storage range extends from -40 °C to 80 °C.