The Siemens EQ 125 Amp 8-Space 16-Circuit Main Lug Outdoor Load Center is NEMA 3R rated for outdoor use and has a hinged door that can be removed by backing-out 1 screw. The load center features a 1-piece copper buss bar that offers excellent conductivity and is ideal for use where the environment can become severe, such as on farms and near coastal areas. Suitable for use as service equipment when a main breaker (125 Amp maximum) is back-fed in a branch position and used with main breaker retainer clip No.