Product identity and key ratings
The Siemens SENTRON 3VA2463-6HN32-0BH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 630 A at 40 °C ambient.
Breaking capacity across voltages
Breaking capacity is specified at multiple system voltages: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 40 kA at 690 V. At 415 V the 187 kA figure covers most industrial low-voltage distribution panels where fault current levels are high enough to challenge standard MCCBs.
Thermal derating and ambient limits
Current-carrying capacity derates with rising ambient temperature: 612 A at 45 °C, 593 A at 50 °C, 575 A at 55 °C, 557 A at 60 °C, 538 A at 65 °C, and 520 A at 70 °C. Operating ambient range is -25 °C to 70 °C; storage range extends from -40 °C to 80 °C.
Trip unit and auxiliary configuration
The overcurrent release is an ETU350 electronic trip unit. The breaker includes an undervoltage release (UVR) and a trip indicator. Auxiliary contact configuration is two auxiliary switches plus one trip alarm switch (HQ).
Physical dimensions and panel fit
Dimensions: 138 mm wide, 248 mm high, 110 mm deep. The 138 mm width fits standard MCCB mounting footprints in switchboards and distribution panels, but verify busbar spacing and enclosure cutout against your existing panel layout.
Lifecycle and sourcing
Lifecycle stage is marked as current production, meaning this order code remains in Siemens' active portfolio. Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.