The Siemens SENTRON 3VA1580-5EF32-0KL0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 800 A continuously at 40 °C without derating — the same 800 A holds at 45 °C and 50 °C, then steps down to 780 A at 55 °C, 761 A at 60 °C, 741 A at 65 °C, and 722 A at 70 °C, so you size the breaker for the actual panel ambient, not the catalog headline. Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 52.5 kA at 690 V — that 121 kA at 415 V gives solid SCCR headroom for most industrial distribution panels without needing a current-limiting upstream device.
Dimensions: 210 mm wide, 320 mm high, 120 mm deep.