Big Lead Assembly (BLA) Trunk Bus

The BLA® (Big Lead Assembly) takes all the complexity out of wiring your solar field. Using Shoals™ latest in-line fuse and wire manufacturing technology, we offer you a site free of traditional DC string combiners.

The mini BLA focuses on North-South applications, allowing for unobstructed access between your PV module rows. This solution delivers reliable power for stacked tracker configurations over long distances and is perfectly suited for project maintenance and agrivoltaics. 

These fuse harnesses work in conjunction with our patented BLA system to provide the ultimate in plug-n-play installation. With configurations available for bi-facial and crystalline panels, as well as First Solar Series 4 and Series 6, Shoals has a harness for your site. Now available in 2kV.

The BLA® system is an aboveground aluminum trunk bus system that combines the functionality of cable assemblies, combiner boxes, and fusing all into one. This free air de-rated system eliminates the need for standard combiner boxes, messy multiple conductor string wires, cable trays, trenching, and field crimping.  Lab-proven under full load during static heating sequence […]