Current Rating: This indicates the maximum current that an MCB can handle without tripping.
Tripping Curve: MCBs come with different tripping curves – B, C, and D, indicating the breaker’s sensitivity to instantaneous overcurrent.
Breaking Capacity: The breaking capacity of an MCB is the maximum fault current it can safely interrupt without sustaining damage.
MCB Pole Types: The number of poles in an MCB indicates the count of live wires the device can protect.