What this 500 A MCCB actually means for your panel
That 500 A holds flat through 50 °C — you only start derating at 55 °C (488 A) and down to 452 A at 70 °C, so it handles warm enclosures without upsizing the frame. At 240 V it hits 220 kA — that's the full upstream transformer rating. No undervoltage release, no trip indicator, no communication module — this is a straight thermal-magnetic breaker for line protection, not a smart metering device.
Panel fit and mounting dimensions
The breaker measures 184 mm wide by 248 mm tall by 110 mm deep. That 110 mm depth is the critical dimension for shallow backpanels or enclosures with limited clearance behind the door.
Thermal management and power loss
Maximum power loss is 122.7 W at full rated current. The derating curve above 55 °C is already accounted for in the current table — no additional margin needed if you stay within the published numbers.