What this MCCB carries on the nameplate
Its interrupting capacity reaches 220 kA at 240 V AC, 154 kA at 415 V, 121 kA at 440 V, and holds 17 kA at 500 V and 690 V — meaning it can clear high-fault currents on a 240 V secondary bus without cascading upstream breakers.
Thermal derating and the 50 A frame
At 55 °C it derates to 49 A, at 60 °C to 48 A, at 65 °C to 46 A, and at 70 °C to 45 A.
Undervoltage release and auxiliary release design
There is no ground-fault monitoring module on this variant, and no communication function. The trip indicator is absent, so a remote status signal will need an auxiliary contact block added separately.
No last-time-buy or phase-out notice is attached to this variant.
