100 A MCCB for motor and starter protection
It carries a maximum adjustable trip setting of 1 500 A and a minimum of 300 A, giving you a wide band for coordinating with motor inrush and downstream branch protection. Breaking capacity is 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. That 330 kA at 240 V is high enough for most industrial service-entrance or large-motor applications where fault current is substantial; the drop at 690 V to 3.7 kA is typical for a 100 A frame and means you need to verify coordination if the breaker sits on a 690 V bus with high available fault current. The 3-pole unit measures 105 mm wide, 181 mm high, and 86 mm deep — a standard SENTRON 3VA2 frame footprint that fits existing panel layouts without re-drilling.