COMMON SENSE MARINE MW14-2-30 Gauge Conductor Wire Duplex Copper Oxygen 30-FT Flat Tinned

( Brand: Common Sense Marine ), ( Manufacturer Part Number: MW14-2-30 ), ( Part Type: Gauge ), ( Size: 30 Feet ), ( Color: Yellow, White, Red ), ( Item Shape: Flat ), ( Voltage: 600.0 ), ( Material: Copper ), ( Unit Count: 1.0 ), ( Strands: Multi Strand ), ( Package Dimensions Lxwxh: 4.4x4.2x2.0 Inches ), ( Weight: 1.55 Pounds )

Review COMMON SENSE MARINE Gauge Conductor Wire 30 Ft Duplex Flat Tinned Copper Oxygen free

The **Common Sense Marine MW14-2-30 14-Gauge Duplex Flat Tinned Copper Oxygen-Free (OFHC) Marine Wire** is a premium-quality marine electrical cable engineered for demanding offshore, recreational, and professional marine applications where reliability, corrosion resistance, and long-term durability are paramount. Designed with a **14-gauge (0.080" diameter) duplex flat conductor**, this wire delivers an optimal balance of current-carrying capacity and flexibility, making it ideal for wiring harnesses, motor leads, bilge pump connections, and other high-stress marine installations where space is limited and performance is critical. The **tinned copper oxygen-free (OFHC) conductors** feature a protective tin plating that prevents oxidation, corrosion, and galvanic action common culprits in saltwater environments while ensuring superior electrical conductivity and resistance to wear from repeated flexing or vibration. This wire is **MIL-W-16878C Type MW-30 compliant**, a rigorous military specification that guarantees exceptional insulation integrity, flame resistance, and resistance to oil, gasoline, and UV degradation, making it a trusted choice for both commercial and recreational vessels.

The **30-foot length** provides ample reach for most marine wiring projects without the bulk of longer spools, while the **flat, duplex construction** allows for neat, organized routing along hulls, bulkheads, or under decking, reducing the risk of snagging or abrasion. The **polyethylene or polyurethane insulation** (depending on the specific variant) offers excellent dielectric strength, abrasion resistance, and flexibility in varying temperatures, from freezing offshore conditions to the heat of an engine compartment. Whether used for **alternator wiring, starter motor connections, or auxiliary power systems**, this wire ensures a stable, long-lasting electrical connection that can withstand the harshest marine environments. For professionals and enthusiasts alike, the **Common Sense Marine MW14-2-30** represents a no-compromise solution combining military-grade durability with the practicality of a versatile, high-performance marine cable.

**Pros and Cons of Buying Common Sense Marine MW14-2-30 (14 Gauge Duplex Flat Tinned Copper Oxygen-Free Wire)**

1. **High-Quality Copper Construction** The wire is made from **oxygen-free copper (OFC)**, which is highly conductive and resistant to oxidation. This ensures better electrical performance and longevity compared to standard copper wire.

2. **Tinned Coating** The **tinned (tin-plated) copper** provides corrosion resistance, making it ideal for marine environments where saltwater and humidity can degrade unprotected wiring.

3. **Marine-Grade Insulation (MW-14)** The **MW-14 insulation** is specifically designed for marine applications, offering **UV resistance, flexibility, and durability** in harsh conditions. It is also **abrasion-resistant**, reducing the risk of damage from movement or friction.

4. **Duplex Flat Design** The **flat, duplex configuration** allows for **easier routing in tight spaces** (such as under dashboards, in bilges, or through bulkheads) compared to round wire. This can simplify wiring harness installation.

5. **Long Length (30 ft)** The **30-foot length** reduces the need for multiple splices, minimizing connection points where failure could occur. This is particularly useful in boats where wiring runs may be long or hard to access.

6. **Reliability in Wet Environments** The combination of **tinned copper and marine-grade insulation** makes this wire well-suited for **wet or damp conditions**, reducing the risk of shorts or corrosion.

7. **Common Sense Marine Brand Reputation** Common Sense Marine is a well-regarded brand in the boating industry, known for **high-quality, marine-specific products** that meet strict performance standards.

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1. **Higher Cost Compared to Standard Wire** Marine-grade, tinned, oxygen-free copper wire is **more expensive** than standard household or automotive wiring. This may be a drawback for budget-conscious buyers.

2. **Overkill for Non-Marine Use** If you are not using this wire in a **marine or high-humidity environment**, the extra features (tinned coating, MW-14 insulation) may not be necessary, making it an unnecessary expense.

3. **Potential Over-Sizing for Small Applications** If you only need a **short run or low-amperage circuit**, a **thicker gauge (like 14 AWG) may be more than required**, leading to wasted material. A **16 or 18 AWG wire** might suffice for smaller loads, reducing cost.

4. **Limited Availability Outside Marine Stores** This wire may not be as easily found in **general hardware stores** compared to standard automotive or household wiring. You may need to purchase it from **marine supply shops or online retailers**.

5. **Slightly Bulkier Than Round Wire** While the **flat duplex design** helps with routing, it is **thicker and less flexible** than round wire, which could make it harder to work with in **extremely tight or confined spaces**.

6. **Potential for Over-Engineering** If you are not dealing with **high-current or critical marine circuits**, the **extra durability features** may not provide a meaningful benefit, making the wire **more expensive than needed**.

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The **Common Sense Marine MW14-2-30 (14 AWG duplex flat tinned OFC wire)** is an **excellent choice for marine electrical applications** where **corrosion resistance, flexibility, and long-term reliability** are critical. Its **tinned copper, MW-14 insulation, and flat design** make it well-suited for **boat wiring, bilge pumps, lighting circuits, and other marine electrical systems** exposed to moisture and vibration.

However, if you are **not using this wire in a marine environment**, the **extra cost and features** may not justify the purchase. For **non-marine applications**, a **standard automotive or household wire** (such as **Teflon or silicone-coated wire**) could be a more cost-effective alternative.

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- You are **installing or repairing marine electrical systems** (e.g., wiring for bilge pumps, lighting, navigation equipment, or alternator connections).

- You need **long, flexible, and corrosion-resistant wiring** in a **wet or humid environment**.

- You prefer **premium-quality wire** that reduces the risk of **corrosion, shorts, or failure** over time.

- You are working on a **non-marine project** (e.g., automotive, RV, or household wiring).

- You need **shorter runs or lower-gauge wire** for cost savings.

- You can find a **similarly rated but cheaper wire** (e.g., **Amphenol Marine or other marine-grade options**) that fits your budget.

For most **marine applications**, this wire is a **strong, reliable choice** that justifies its cost with **long-term performance and durability**. If budget is a concern, consider **checking for sales or bulk discounts** from marine suppliers.

Details:

Premium PVC Shielding: Our top-tier insulation not only fends off moisture, flame, acid, alkali, oil, and gasoline but also boasts Rhos-compliant materials. The durable PVC insulation resists moisture, flame, acid, alkali, oil, and gasoline, making this boat wire a resilient long-lasting solution for your electrical needs. Brings you high-quality 14/2 Gauge Tinned Copper Wire. It ensures optimal performance in demanding environments.

The multi-strand design provides flexibility during installation. Also suitable for various wiring configurations on your boat. This resilient white jacket ensures your wire remains safeguarded against abrasion, sunlight, and harsh chemicals. Designed with versatility in mind, our wire meets SAE, ABYC, UL, and Coast Guard requirements, a voltage rating of 600 volts for both dry wet conditions 105 C dry, 75.

Our BC-5W2 compliant and UL 1426 listed wire is made in the USA, ensuring highest quality for your electrical system. Approved by the US Coast Guard and compliant with UL 1426 standards, this boat cable is a trusted choice for wiring applications. The high strand count tinned copper conductor Type III offers low resistance, conductivity, and corrosion protection. Invest in reliability and safety with.

part #: mw14230 prices

• $129.28-$133.36

specifications electricalmiscoz:

• brand: Common Sense Marine
• mpn: Mw14-2-30
• part type: Gauge
• size: 30 Feet
• color: Yellow, White, Red
• item shape: Flat
• voltage: 600.0
• material: Copper
• unit count: 1.0
• strands: Multi Strand
• package dimensions lxwxh: 4.4x4.2x2.0 Inches
• weight: 1.55 Pounds

seller electricalmiscoz:

• rating: 99.5%
• # reviews: 227
• city: Chicago, Illinois

returns electricalmiscoz:

• policy: Returns Accepted
• time: 30 Days
• method: Money back
• paid by: Seller

shipping electricalmiscoz:

• type: Fixed
• transit: 3-8 Days
• carrier: USPS
• service: USPS First Class Letter
• cost: $0.00
• class: Standard

payments electricalmiscoz:

• other
• wallet: Paypal
• credit card: Visa

general electricalmiscoz:

• Electrical Supplies > Electrical Wire Cable Accessories > Electrical Wire Cable Connectors
• condition: New

offer electricalmiscoz:

• options: Ship-to-home
• availability: In Stock
• started: March 2, 2026
• quantity: 1
• sold: 0

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