The Siemens SENTRON 3VA1463-5EE32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 630 A continuous current at 40 °C, with a TM220 thermal-magnetic overcurrent release designed for line protection. Its 121 kA breaking capacity at 415 V gives you headroom for high-fault installations without cascading upstream — a key spec when coordinating selectivity in a distribution panel.
Breaking capacity and thermal derating
At 240 V the MCCB interrupts 187 kA; at 500 V it still holds 75.6 kA, and at 690 V it drops to 11.9 kA. That 121 kA at 415 V covers most industrial LV switchgear in common 400 V networks. The continuous rating holds at 630 A through 50 °C ambient; above that it derates linearly to 583 A at 70 °C — so in a hot enclosure you lose about 47 A off the headline number. Plan your fill factor accordingly.
Panel fit and integration
Footprint is 138 mm wide, 248 mm tall, 110 mm deep — standard for a 630 A frame in the 3VA family. Three-pole construction, no undervoltage release fitted (: No), no communication module onboard (: No). The TM220 release is a fixed thermal-magnetic type; no trip indicator (: No). Mounts in a distribution panel on a mounting plate or DIN rail adapter; the 192.9 W maximum power loss at full load needs ventilation clearance — don't box it in against other heat sources.