At 240 V it interrupts 330 kA; at 415 V and 440 V it manages 242 kA; at 690 V it still holds 52.5 kA. Those figures are the ultimate short-circuit breaking capacity Icu — the breaker survives one fault at that level and must be replaced afterward. The undervoltage release (UVR) is built in — when line voltage drops below the dropout threshold the breaker opens, which is standard for motor circuits that must not auto-restart after a brownout.
Sourcing and lifecycle — current production, quoted to order
The SENTRON 3VA2 series is Siemens' mainline MCCB platform, so firmware and accessory compatibility (the ETU350M trip unit, the 3VA9608-0BB25 auxiliary trip, the 3VA2450-7MN32-0AA0 basic switch) are all current catalogue items.
Compliance documentation
As a Siemens SENTRON product, the 3VA2450-7MN32-0DH0 carries CE marking for the European low-voltage directive.