Eaton's line of EUSERC required devices adhere to the agreed upon standards. EUSERC utilities are predominately located in the western United States but some eastern and mid-western utilities are also members. Check your local utility for meter breaker panel requirement. This is a type CH EUSERC All in One meter breaker panel. All in One panel consists of a meter socket and a load center distribution section. The CMBE24L125BTS is a 125 Amp main lug with 4 circuits.