Breaking capacity and fault clearance
The 3VA2440-5JQ32-0AA0: The interrupting capacity is 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V. That 187 kA at 240 V means this breaker clears high-fault-current events at the service entrance or on large bus feeds without cascading upstream — a critical spec for panel designers sizing series-rated combinations. The instantaneous trip is fixed at 600 A minimum, 6 000 A maximum; short-time withstand is 5 kA limited to 1 second. The long-time pickup is set at 80 A initial, with a full-scale value of 400 A.
Integration and communication
The breaker measures 248 mm high, 138 mm wide, 110 mm deep — a standard SENTRON 3VA frame size that fits existing panel cutouts and busbar systems. It includes a communication function for integration into higher-level monitoring or control networks. Operating temperature range is -25 °C to +70 °C; storage from -40 °C to +80 °C. Maximum power loss at rated current is 63.5 W — relevant for enclosure thermal calculations.