230V 400V AC Combiner Box 6 In 1 Out

The 230V 400V AC Combiner Box 6 In 1 Out, supplied by China manufacturer Zhejiang Soutya New Energy LLC, is a 400V three phase inverter combiner unit constructed , UV resistant steel enclosure and IP65 sealing for durable outdoor performance. The enclosure houses six 4 pole AC molded case circuit breakers (160-250 A rated current ) that deliver individual over-current and short-circuit protection to each inverter input, while a single 4-pole AC molded case circuit breaker (1000-1600 A rated current ) provides visible-break isolation and overload protection for the combined output. Factory-wired L1, L2, L3, N and PE copper busbars ensure dependable current-carrying capacity and equipotential bonding, and a built-in Type II 4 pole 275V AC surge protective device guards against lightning-induced surges. Engineered for up to six solar string inverters (6*50–80 kW), it provides essential AC combining, surge immunity and maintenance safety.

Application scenarios

1. Utility Scale Ground Mount Blocks (480-800 kW)

The six 160-250A molded case circuit breakers inputs accept up to six 80 kW string inverters; the 1600A output molded case circuit breaker feeds a 400V switchboard or MV transformer, reducing trenching and cable runs across large solar parks.

2. Central-Inverter Skid Substations

Mounted on the inverter rack, the box acts as a “local AC hub” — paralleling six inverter outputs before a single large feeder to the MV switchgear, simplifying skid wiring and maintenance access.

3. Large Commercial Rooftops > 500 kW

IP65 steel housing and IK10 impact rating allow rooftop placement where space is limited; the 400 V rated components keep cable sizes down while the 1600 A busbar carries the combined current to the building MSB.

4. Agricultural Greenhouses & Barn Clusters

The Type-2 275 V SPD protects ventilation fans, irrigation pumps and milking equipment from lightning surges common in open fields, while individual input MCCBs let farmers isolate one inverter without shutting down the entire cluster.

5. Distributed 6-Pod Industrial Sites

Each 160–250 A MCCB serves as a local disconnect for a separate building wing or car-port pod; the common 1000–1600 A output MCCB simplifies metering and grid connection, while the SPD guards the whole site against transient over-voltages.