

Victron Energy Solar Adapter Cables (MC4 to MC3)
Free shipping over $49
Free US shipping on orders over $49, from our Seattle warehouse. Lithium batteries and oversize items may have an applicable shipping charge — anything due shows at checkout before you pay.
60-day hassle-free returns
You have 60 days after receiving your item to request a return. Lithium batteries (and products with lithium batteries inside) are non-returnable due to hazmat carrier regulations, unless arranged locally. Full details on our return policy page.
Short adapter leads that bridge the MC4 and older MC3 connector standards. If you're connecting newer MC4-equipped panels, cables, or charge controllers to legacy MC3 wiring (or vice versa), these 15 cm adapter cables make a clean, weatherproof transition without re-terminating anything.
- Two versions: MC4 male to MC3 female and MC4 female to MC3 male - choose the one that matches the ends you need to join.
- 15 cm (6 in) tinned-copper PV lead with factory-fitted connectors.
- UV-resistant, double-insulated jacket rated for outdoor and marine exposure.
- IP68, water-tight connections with a secure locking fit.
- Order both versions to adapt an in-line MC3-to-MC4 splice in either direction.
Pairs with: Victron MC4 solar cables and SmartSolar and BlueSolar MPPT charge controllers.
Why buy from Blue Marine
- True Blue Victron Energy Distributor - genuine Victron parts, in stock.
- Free shipping over $49 from our Seattle warehouse.
- Certified technicians on the phone - (800) 628-6306 for sizing and compatibility help.
- 60-day hassle-free returns and local pickup in Seattle, WA.
Manuals & Datasheets
Need a document you don't see here? Schedule a consultation or email support@bluemarine.com and we'll send it over.
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Victron Energy Solar Adapter Cables (MC4 to MC3)
Sale price$9.35 USD
Regular price$11.00 USD
About Blue Marine
Nationwide Shipping from Our Warehouse in Seattle
Knowledgeable ABYC Certified advisors, friendly advice and fast shipping.