MC4 3-Into-1 Parallel Connector Cable

Solar panels can be wired together in series (+ to -) or parallel (+ to +). Wiring two panels in series effectively turns them into one larger panel, which simplifies installation but makes the array more sensitive to shading — if any part of any panel in the string is shaded, total output drops dramatically.

Parallel wiring solves that problem: each panel's output is independent of the others, which can make your array noticeably more efficient in partial shade — common when panels are mounted on a vehicle. This 3-into-1 cable makes it easy to wire three panels together in parallel. If you only need to combine two panels, check out our Parallel Y-Cables instead.

Key Specs:

• Configuration: 3-into-1 parallel (MC4)
• Dimensions: 11 in. each
• Weight: 0.5 lb each