MCCB for main feeder or large branch protection
Four poles, line-protection version — no ground-fault or N-conductor protection built in. Undervoltage release (UVR) is included; auxiliary contacts are 2 NO/NC plus a separate trip-alarm switch (HQ). Panel-mount footprint: 140 mm wide, 158 mm tall, 70 mm deep.
Current rating holds to 50 °C; derate above
At 55 °C it drops to 243.3 A, at 60 °C to 236.5 A, at 65 °C to 229 A, and at 70 °C to 223 A.
Panel fit and aux contact layout
Mounts in a standard switchboard or enclosure cutout. The 140 mm width and 158 mm height match typical SENTRON 3VA frame spacing. Front face carries a trip indicator and is rated IP40 — suitable for indoor panel environments, not washdown zones.
