• Code-gauge steel enclosure • Single phase, 3 wire, solid neutral, 4 spaces/8 circuits 1-pole, 2 QP breakers 2-pole, 120/240 volt AC • 10,000 AIR • With closure plates, HS-hubs sold separately • One piece plated aluminum bus bar • 100 percent circuit breaker twistouts • Positive load side circuit breaker hook rail • Suitable for use as service equipment when a main breaker (100 amp maximum) is back-fed in a branch position and used with main breaker retainer clip No.MBR1 • When used as service equipment, any unused neutral position may be used for equipment grounding • Rotate entire device 180 degrees for bottom feed • Gray enamel finish • CSA and UL Listed, complies fully with NEC and UL requirements for Class CTL • 6 x 12-1/4 x 4-1/4. • Amp Rating=125