Sierra PC51020 NMEA 2000 Micro-C Extension Cable | 6 ft
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Sierra PC51020 NMEA 2000 Micro-C Extension Cable — 6 ft
The Sierra PC51020 is a 6 ft Micro-C extension cable designed to extend or connect devices on an NMEA 2000 network backbone. NMEA 2000 is the marine industry standard data network that allows compatible electronics — chartplotters, GPS sensors, depth sounders, engine monitors, VHF radios, and more — to share data over a single cable network. The 6 ft length suits longer backbone segments and installations where devices or T-connectors are spaced further apart. Gold-plated copper alloy terminals, 18AWG conductors, and an IPX7-rated waterproof connection ensure reliable, low-loss signal transmission in demanding marine environments. Fully interchangeable with other NMEA 2000 certified products.
Key Features
- 6 ft Micro-C extension cable for NMEA 2000 network backbone connections
- Fully interchangeable with other NMEA 2000 certified products
- Gold-plated copper alloy terminals for superior conductivity and corrosion resistance
- 18AWG conductors — minimizes voltage drop between connections
- IPX7-rated waterproof connections — reliable in wet and spray environments
- Premium metal connection collars for a tight, secure fit
- Compliant with NMEA 2000 serial data communication network standards
Compatible Applications
- Extending NMEA 2000 backbone runs on powerboats and sailboats
- Connecting chartplotters, GPS sensors, depth sounders, and engine monitors to an NMEA 2000 network
- Longer backbone segments where T-connectors or devices are spaced further apart
- Installations where routing the backbone around obstacles requires additional cable length
- Any NMEA 2000 Micro-C network installation requiring a certified 6 ft extension cable
Parts Desk Insights
The PC51020 is the right pick when a customer needs more reach than the 3 ft extension provides — particularly useful when routing the backbone around a console, through a bulkhead, or across a wider helm area. If 6 ft is still not enough, the Sierra PC51030 (12 ft) is the longest extension in the range. For shorter gaps, the Sierra PC51010 (3 ft) and Sierra PC51000 (2 ft) are available. For connecting individual devices off the backbone rather than extending it, the drop cables — Sierra PC51140 (2 ft Drop), Sierra PC51160 (6 ft Drop), and Sierra PC51170 (16 ft Drop) — are the correct cable type. To power the network, the Sierra PC51070 Power T Cable is also available. Browse our full NMEA 2000 range in the Switches & Circuit Protection collection.
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.