| Basis for Comparison | FUSE | CIRCUIT BREAKER |
| MAINTENANCE | Fuse can only be used 1 time, it is a non- reusable device | Circuit Breaker can offer a total no of operations as declared by the manufacturer. |
| TRIP TIME | 2-5ms, quickest operating device | Vary as per the device, ex: for ACB it can be 30ms & for MCCB can be less than 10ms |
| UTILIZATION CATEGORY | If the first letter is ‘g’ means both protection (O/L + S/C), If the first letter is ‘a’ only S/C will be there. | If category A it means no Icw shall be there, If category B, Icw shall be there |
| METHOD OF TRIPPING | ‘SOLDER’ for Overload, ‘ELEMENT’ for Short Circuit | Available as ‘MICROPROCESSOR’ type & ‘THERMAL MAGNETIC’ type |
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