Homeline All In One combination service entrance devices are available with ring or ringless type meter socket designs. Devices have factory installed service disconnect(s) in most cases. Supplied with 100% branch neutrals, all unused terminals may be used for equipment grounding wires. These Homeline combination service entrance devices meet the Federal Specification W P 115c as Type 1, Class 2 specifications. This is a branch circuit breaker field installation kit for two Q-frame circuit breakers (QBL, QDL, or QGL, order separately). This is for use with CUM400CB, QUM400CL or QUM400CK. This unit includes 2 mounting pans and 4 wires. It is UL rated.