Three Phase DC+AC Combiner Box 600V 1000V 2 In 2 Out Industrial Box

The Three Phase DC+AC Combiner Box 600V 1000V 2 In 2 Out Industrial Box, supplied by China manufacturer Zhejiang Soutya New Energy LLC, is a 600 V–1000 V DC and 380 V AC hybrid combiner-isolator unit constructed with a UV-stabilised polycarbonate housing and IP65-rated sealing for durable outdoor deployment. The enclosure houses three 4-pole rotary DC isolator switches—dedicated to PV string-1, string-2 and battery-string circuits—plus three 1000 V gPV fuse holders and two 1000 V DC surge-protective devices that deliver over-current and over-voltage protection while providing visible-break isolation. Factory-wired DC buses, positive, negative and PE, ensure dependable grounding continuity. On the three-phase AC side an integrated 4-pole RCBO 40 A 30 mA Type A, two 3-pole MCBs and one 4-pole 385 V AC surge arrester are mounted behind a flame-retardant partition, giving maintenance-safe load-break, earth-fault and surge immunity in one wall-lockable cabinet. Engineered for 2-string PV plus BESS sub-arrays, it provides essential combining, manual isolation and equipotential bonding for commercial rooftops, car-port canopies and light-industrial systems up to 30 kW.

1. Commercial Rooftops (15–30 kW)

Three-phase inverters on flat or pitched roofs need a single, lockable hub where two PV strings and one battery string are combined, isolated and surge-protected before feeding the 380 V distribution board—this box provides that pre-wired solution.

2. Car-Port & Canopy Structures

The shallow, IP65 wall-mount enclosure fits inside narrow steel beams, giving parking shelters a neat, three-phase isolation point for PV plus BESS circuits while keeping DC and AC compartments visibly separated for maintenance during vehicle cleaning.

3. Light-Industrial Facade BIPV

UV-stabilised polycarbonate and front-door rotary handles allow flush mounting on warehouse or office walls, offering facilities managers visible-break isolation of all DC sources and a ready-made three-phase AC output for the main switchboard.

4. Agricultural Greenhouses & Barns

The 4-pole RCBO and AC/DC SPDs protect ventilation, irrigation and feed systems from lightning transients common in open fields, while the three dedicated isolators let farmers shut down PV, battery or inverter circuits independently.

5. Ground-Mounted Sub-Arrays up to 30 kW

Factory-wired DC buses and three-phase AC section reduce on-site assembly time for tracker or fixed-tilt rows, delivering a plug-and-play combiner that merges two PV strings, one battery string and three-phase inverter output in one weather-proof cabinet.