Line protection MCCB with high interrupting capacity
Its interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — figures that cover most industrial fault-current scenarios without needing a current-limiting upstream device. The front face is IP40 rated, so it's suited for enclosed panel mounting where incidental tool or finger contact is the only exposure.
Above that, derating is gradual: 60.48 A at 55 °C, 59.22 A at 60 °C, 57.96 A at 65 °C, and 56.7 A at 70 °C. The operating temperature floor is -25 °C, the ceiling is 70 °C. Storage range is wider at -40 °C to 80 °C.
Integration and mounting dimensions
Width is 76.2 mm (roughly 3 inches — three 25.4 mm pole pitches), height 130 mm, depth 70 mm. These dimensions match the standard SENTRON 3VA fixed-format footprint.