Marinco S30-15 (Old 81A) Straight Adapter Dock Side Male 30A/125V Locking to Boat Side Female 15 or 20A 125V Straight Blade
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Marinco S30-15 (Old 81A) Straight Adapter is a straight-blade shore power adapter designed to connect dock-side 30A/125V power to a boat-side 15A (or 20A) 125V inlet. It’s a one-piece adapter with a built-in LED power indicator and a locking dock-side male connection.
Key Features
- One-piece straight adapter for shore power connections
- Dock-side male plug: 30A/125V locking connector
- Boat-side female connector: 15 or 20A/125V straight blade
- Built-in LED power indicator
- Marine UL® listed
- 5 year warranty
- Straight (no sealing collar) design—intended for enclosed, dry locations only
Intended Use
- Shore power / dock-to-boat power adaptation
- Connecting a 30A/125V dock-side receptacle to a 15A or 20A/125V boat-side inlet (straight blade)
Product Details
- Marinco S30-15 (Old 81A) Straight Adapter
- Dock side (male): 30A/125V locking connector
- Boat side (female): 15 or 20A 125V straight blade connector
- Adapter type: straight adapter
- LED power indicator included
- Marine UL® listed
- Warranty: 5 year
- SKU: 69-S3015
- Barcode: 093344051890
- Weight: 235 grams
Parts Desk Insights
Best Use Case: Use this straight adapter when you need to step down from a dock-side 30A/125V locking connection to a boat-side 15A (or 20A) 125V straight-blade inlet, such as inside an enclosed, dry area for shore power routing.
Common Issues: Because this adapter does not use sealing collars, avoid wet/outdoor exposure. Confirm the dock-side receptacle type (locking 30A/125V) and the boat-side inlet blade style (15/20A 125V straight blade) before connecting to ensure the plugs mate correctly.
Related Products & Accessories
- Browse Shore Power adapters & cords - Shop the Shore Power category for matching pigtails, cords, and adapters for different amperage/receptacle styles.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.