What this 630 A MCCB delivers
The Siemens 3VA2463-5JP32-0KA0 is a SENTRON molded case circuit breaker rated for 630 A continuous current at 40 °C, with a 3-pole configuration for three-phase line protection. Breaking capacity hits 187 kA at 240 V AC, drops to 121 kA at 415 V and 440 V, then to 75.6 kA at 500 V and 9 kA at 690 V — so at typical 480 V distribution you're still well above most fault-current scenarios. Thermal derating is published: 630 A at 40 °C, 600 A at 45 °C, 570 A at 50 °C, 540 A at 55 °C, 510 A at 60 °C, 480 A at 65 °C, 450 A at 70 °C. If your panel ambient runs hot, size the load accordingly. This unit includes a shunt trip release (STL) for remote tripping and a communication function for integration into a monitored distribution system. No undervoltage release, no ground-fault monitoring, no auxiliary switch fitted as standard.
Panel fit and environment
Dimensions are 248 mm high, 138 mm wide, 110 mm deep — the 110 mm depth is the key clearance number for enclosure depth when the breaker is mounted on a DIN rail or bolted to a backplate. Operates from -25 °C to 70 °C ambient; storage range is -40 °C to 80 °C. Maximum power dissipation is 162 W, so factor that into your enclosure thermal budget. The base variant this ships with is 3VA2463-5JP32-0AA0 — the -0KA0 suffix adds the communication function and possibly other factory options. No trip indicator on the front face.
Lifecycle and sourcing posture
No official successor has been published; the 3VA2 series remains the current SENTRON MCCB generation for this current class.