The main service overcurrent device is usually not an integral part of the service disconnecting means.

Overcurrent devices are permitted to be used in ground conductors when used for motor overload protection.

Overcurrent devices shall not be located over steps of a stairway:

The maximum overcurrent protection of 12 AWG Copper conductors is:

Overcurrent devices shall be located in bathrooms but should be of damp proof type:

Where the standard ampere rating of fuses or circuit breaker does not match the ampacity of the conductor, the next higher ampere rating is permitted.

Overcurrent protection device is also provided in ground conductors if it opens all conductors of the circuit at the same time:

The maximum overcurrent protection provided for 14 AWG copper conductor is:

Overcurrent protective device(s) shall not be provided in the service entrance main panel:

Overcurrent protection is sized according to the ampacity of a conductor:

The over current protection for 8 AWG Copper Conductor is 40 A:

Where the overcurrent device is rated over 800 amperes, the ampacity of the conductors it protects shall be equal to or greater than the rating of the overcurrent device: