63 A MCCB with TM210 release for line protection
Breaking capacity — what the voltage columns mean
The interrupting rating drops with system voltage: 187 kA at 240 V, 121 kA at 415 V, 76 kA at 440 V, and 17 kA at 500 V.
Thermal derating above 55 °C
At 55 °C it derates to 62 A, at 60 °C to 61 A, at 65 °C to 60 A, and at 70 °C to 58 A. If the panel sits near a heat source or in a sealed enclosure, the 58 A floor at 70 °C is the safe sizing figure.
Three-pole, 76.2 mm wide, 130 mm tall, 70 mm deep — standard MCCB footprint for a 63 A frame. Max power loss is 17 W — factor that into your enclosure thermal calculation.