What this MCCB delivers
The Siemens SENTRON 3VA2063-8HL42-0AA0 is a 4-pole molded case circuit breaker rated for 63 A continuous current at ambient temperatures from 40 °C through 70 °C — no derating needed across that span. The ETU320 electronic trip unit provides adjustable overload and short-circuit protection, with a maximum breaking capacity of 440 kA at 240 V and 330 kA at 415 V. Insulation voltage is rated at 800 V, and the front face carries IP40 protection for panel-mounted installations.
Breaking capacity across voltage levels
This MCCB's interrupting rating varies with system voltage: 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V. That spread covers most low-voltage distribution panels — the 415 V figure is the one to check for European 400 V networks, while the 690 V rating suits industrial drives or transformer-fed sub-distribution.
Mounting and integration
Dimensions are 181 mm high, 140 mm wide, and 86 mm deep — a standard footprint for 4-pole SENTRON MCCBs. The IP40 front face suits enclosed panel mounting; the breaker is designed for line protection with no undervoltage release, no communication function, and no ground-fault monitoring version fitted.