Siemens SENTRON 3VA2463-6KP32-0AH0 — 630 A MCCB, 3-Pole, Line Protection
The Siemens SENTRON 3VA2463-6KP32-0AH0 is a molded case circuit breaker (MCCB) rated for 630 A continuous current at 40 °C, with a 3-pole configuration and a maximum breaking capacity of 242 kA at 240 VAC. It is designed for line protection in industrial distribution panels, with an integrated communication function for remote monitoring or integration into a higher-level control system.
Breaking Capacity and Thermal Derating
The 242 kA interrupting rating at 240 VAC drops to 187 kA at 415 V and 440 V, then to 121 kA at 500 V, and 9 kA at 690 V — a steep roll-off above 500 V that matters for 690 V line-side fault coordination. The continuous current derates from 630 A at 40 °C to 450 A at 70 °C in 5 °C steps; at 50 °C the breaker is good for 570 A, at 60 °C for 510 A. If the panel ambient runs above 40 °C, the installed rating must be selected against the derated value, not the nameplate 630 A.
Physical Fit and Auxiliary Switching
Dimensions are 248 mm high, 138 mm wide, 110 mm deep — a standard SENTRON 3VA frame size that mounts on a DIN rail or panel-mount adapter. The breaker ships with 2 auxiliary switches plus 1 trip alarm switch (HQ type), and a trip indicator is present. No undervoltage release or ground-fault monitoring is fitted from the factory; those are add-on options if the application requires them.