Siemens SENTRON 3VA1510-5EF32-0JH0 — 1000 A MCCB for High-Fault Line Protection
Its breaking capacity reaches 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 — figures that tell you it can safely interrupt faults up to those levels without cascading upstream, which is critical for switchgear with high available fault current.
Above that, it derates: 960 A at 55 °C, 940 A at 60 °C, 920 A at 65 °C, and 900 A at 70 °C. If your panel ambient runs at 60 °C, you lose 60 A of headroom — factor that into your load calculation.
Physical Fit and Auxiliary Configuration
Dimensions are 320 mm high, 210 mm wide, and 120 mm deep. The trip indicator and voltage trigger are present; undervoltage release and ground-fault monitoring are not fitted on this variant. Communication function is not included — this is a standalone line-protection device.