Commissioning note — 80 A SENTRON MCCB with undervoltage release
The interrupting ratings are 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — so at 240 V it handles the highest fault current, but at 690 V the capacity drops sharply; verify the available fault current at your service voltage before committing the BOM line. The trip indicator is absent — so a remote status or trip-flag signal requires the separate auxiliary trip accessory 3VA9608-0BB25. Thermal derating is flat to 50 °C (80 A), then drops to 76.8 A at 55 °C, 75.2 A at 60 °C, 73.6 A at 65 °C, and 72 A at 70 °C.
The product carries IP40 protection on the front face (finger-safe, no water ingress).
The undervoltage release coil must be held at rated voltage to keep the breaker closed; a dropout below the release threshold opens the load. Verify the control voltage matches the UVR rating on the nameplate before energizing.