Line protection MCCB with high interrupting capacity
Its interrupting capacity hits 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — numbers that cover most low-voltage distribution panels and motor control centers without needing a current-limiting upstream device. The thermal-magnetic release is a TM210, sized for 20 A at 40 °C through 50 °C with no derating; above that the curve drops to 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C.
The 3VA1020-4ED32-0JC0 measures 70 mm deep, 76.2 mm wide, and 130 mm tall.