Breaking capacity and thermal derating
This MCCB delivers 121 kA at 240 V AC, 75.6 kA at 415 V AC, 52.5 kA at 440 V AC, and 11.9 kA at 690 V AC — covering most low-voltage industrial service entrances and sub-distribution boards. Thermal derating is minimal up to 50 °C (full 100 A), then drops to 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C.
Dimensions are 130 mm high, 76.2 mm wide, and 70 mm deep — a standard SENTRON 3VA footprint that fits existing panel cutouts and DIN-rail adapters. Front protection is IP40, so it's suitable for enclosed distribution boards where dust ingress is controlled.
Mechanical endurance and approvals context
Rated for 15,000 mechanical operations — typical for a fixed-trip MCCB in a main feeder role where switching cycles are infrequent. The integrated auxiliary trip order code is 3VA9608-0BB24, relevant if you need to order the matching shunt trip or UVR accessory separately.