

A. An un-spliced main bonding jumper complying with 250.28 must be installed between the grounded neutral terminal and the metal parts of the service disconnecting means enclosure in accordance with 250.24(C) [250.24(B)]. Remember that the service equipment is the one to six disconnects connected to the load end of service conductors intended to control and cut off the supply to the building or structure [Art. 100, Service Equipment]. The service you described ends at the load side of the single main breaker. The answer to your question is to install the main bonding jumper at the main breaker, and nowhere else.