Typical project ranges for a single distribution box install span from $500 to $3,000, with most residential jobs landing around $1,000 to $1,800. What Should You Consider When Selecting DC Circuit Breakers for PV Systems? Solar photovoltaic systems require specialized protection equipment to ensure safe and reliable operation throughout their lifespan. Among the most critical components are DC circuit breakers, which serve as the primary. Cost ranges reflect typical residential septic distribution box projects. The main cost drivers are the number of boxes, trenching, backfill, and permit requirements. Cost estimates below use. The Suggested Retail price column, also referred to in the industry as the third column, end column or best column are the manufactures' most current published prices.
