1000V DC Combiner Box 1 In 1 Out Isolator type

The 1000V DC Combiner Box 1 In 1 Out Isolator Type, supplied by Chinese manufacturer Zhejiang Soutya New Energy LLC, is designed for photovoltaic systems. It is constructed from ABS+PC material, offering flame retardancy, impact resistance, and UV protection, ensuring high durability in outdoor environments.. The unit includes one DC surge protective device, two DC fuse holders, and one cage-type DC isolator switch. This configuration provides overcurrent and overvoltage protection for single-string PV systems.

Technical Parameter

Wiring Diagram

Application scenarios

1.Small-Scale Rooftop PV – Single-String Homes & Boutiques

Compact villas, town-houses, kiosks and cafés whose entire roof fits only one PV string.

The 1-in / 1-out isolator box gives this “one-string wonder” a full safety kit: rotary isolator for lock-out/tag-out during homeowner maintenance, DC fuse holders against string fault current, and an SPD that absorbs rooftop lightning strikes. ABS-PC housing shrugs off UV and hail, turning the smallest roof into a durable, code-compliant power plant.

2.Off-Grid & Stand-Alone Power Nodes

Solar street lights, irrigation pumps, telecom repeaters, highway cameras—any single-string site that must run 24 h without the grid.

IP66 flame-retardant enclosure seals out dust monsoons and desert heat; built-in earth leakage monitor trips before a ground fault can silence a remote repeater. One cable in, one cable out—installers can mount, test and walk away, confident the asset will stay online for decades.

3.Solar-Farm Auxiliary Circuits

Inside multi-MW plants a second, smaller array often powers CCTV, inverter fans or beacon lights.

This sub-array gets its own 1-in / 1-out bodyguard: electrically and physically separated from the revenue strings, so when the security camera line needs a fuse swap the main inverters keep selling power. Simple topology, dedicated protection, zero production lost.