The Siemens SENTRON 3VA1510-5EF32-0BH0 is a 3-pole molded case circuit breaker rated for 1 000 A continuous current, built around a TM240 thermal-magnetic overcurrent release. It's a line-protection unit — meaning it's sized for feeder and main disconnect duty, not motor-starting curves. The interrupting capacity hits 187 kA at 240 V and still holds 121 kA at 415 V and 440 V, so it handles high-fault panels without cascading upstream breakers.
Current derating and temperature
Above that it derates linearly — 960 A at 55 °C, 940 A at 60 °C, 920 A at 65 °C, and 900 A at 70 °C. If your panel runs hot or sits near a furnace line, that 70 °C figure is the one you plan around, not the nameplate.
That covers remote status and shunt-trip capability without adding field-installed accessories — one less thing to order separately.