Plumbing & Electrical

The Best Solid Interconnect Wire

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Our picks are based on Amazon bestseller rankings, verified customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

Solid interconnect wire is a fundamental component in various electrical and electronic projects, from prototyping on breadboards to permanent wiring installations in residential or industrial settings. These single-strand conductors offer rigidity and consistent connections, making them suitable for applications where flexibility is not paramount. Products were evaluated based on conductor material, insulation type, wire gauge (AWG), environmental resistance, and application suitability, alongside feature analysis.

Best Overall

TUOFENG 22 AWG Wire Solid Core Hookup Wire, 6 Different Colored Breadboard Wires 30ft Each, Electronic Wire with PVC for Arduino

$15.69

This TUOFENG kit provides a versatile assortment of colors and a common 22 AWG gauge, ideal for most electronics and prototyping work.

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Best Budget

22 awg Solid Wire kit Electrical Wire Cable 7colors 26ft Each spools 22 Gauge UL1007 Tinned Copper Hook up Wire kit breadboard Wire for DIY

$14.58

The Haerkn 22 AWG kit offers a comprehensive set of colors and length, presenting a cost-effective solution for DIY enthusiasts and hobbyists.

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Best Premium

THE CIMPLE CO 10 Feet (3 Meter) - Insulated Solid Copper THHN/THWN Wire - 14 AWG, Made in The USA, Residential, Commerical, Industrial, Grounding, Electrical Rated for 600 Volts - in White

$10.97

THE CIMPLE CO's 14 AWG THHN/THWN wire is designed for heavy-duty, permanent installations, offering robust construction and high voltage rating.

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No. 1
TUOFENG 22 AWG Solid Wire Kit, 6 Colors, 30 ft Each
  • 6-COLOR, 180 FT KIT: Includes red, black, white, blue, green, and yellow wire, 30 ft per color, for organized circuit identification and fewer wiring mistakes
  • SOLID TINNED COPPER CONDUCTOR: Single-core conductor holds clean bends, inserts into breadboards without loose strands, and accepts solder for PCB and electronics work
  • 22 AWG DIMENSIONS: Approximately 0.64 mm conductor diameter and 1.55 mm overall diameter help provide a practical fit for breadboards, perfboards, and terminals
  • PVC INSULATION RATING: Rated 300 V and up to 80C for fixed electronics wiring. The jacket strips cleanly when used with a properly sized wire stripper
  • VERSATILE APPLICATION: Use for breadboards, microcontroller projects, PCB soldering, guitar electronics, STEM builds, and other fixed internal wiring
  • CONVENIENT SPOOL PACKAGING: Each color comes on its own spool with 30 feet of wire, making it easy to store, dispense, and keep your workspace organized during projects
No. 2
TUOFENG 24 AWG Solid Core Wire Kit, Tinned Copper, 6 Colors, 30 ft Each
  • 24 AWG SOLID CORE Built with a single tinned copper conductor that holds bends better than stranded wire, making it suitable for breadboards, PCB jumpers, electronic prototypes, and point-to-point wiring.
  • 180 FT, 6-COLOR SET Includes six 30 ft spools for 180 ft total: red, black, green, yellow, blue, and white. The color-coded set simplifies circuit identification, troubleshooting, and organized wiring.
  • TINNED COPPER FOR SOLDERING The tinned copper conductor supports clean soldering and helps protect the conductor surface from oxidation. The solid core is easy to cut, strip, shape, and terminate for electronic projects.
  • PVC INSULATION, 300 V PVC insulation provides abrasion resistance for routine electronic wiring. Rated for up to 300 V and temperatures up to 80°C when installed within the applicable circuit and equipment requirements.
  • ELECTRONICS AND PROTOTYPING Suitable for breadboards, PCB prototypes, control circuits, LED projects, electronic repairs, models, and DIY wiring. Not intended for automotive booster cables, household building wire, or high-current power applications.
No. 3
BNTECHGO 22 Gauge PVC Solid Electric Wire Red Black Each 100 ft Hookup Wire
  • Solid Single Core Wire 1007 22 AWG Hook-Up Wire: 1×0.65±0.008mm tinned copper conductor for anti-oxidation and easy soldering. Features a durable 0.69–0.76mm PVC insulation (OD: 2.28±0.1mm) for reliable, safe internal wiring.
No. 4
TUOFENG 18 AWG Solid Wire, Tinned Copper, 6 Colors, 20 ft Each
  • Solid Single Core Wire Construction: TUOFENG 1007 18 AWG Hook-Up Wire features solid tinned copper conductor with a PVC sheath for reliable electrical connections
  • High Resistance to Environmental Factors: PVC insulation provides good abrasion resistance and resistance to substances such as oil, solvents and chemicals, withstanding temperatures up to 80 degrees C
  • User-Friendly Design: Low-fray design ensures easy handling, stripping, and termination for convenient installation and use
  • Electrical Specifications: Features PVC insulation .010 inch thickness, 300 Volts voltage rating, and VW-1 flame retardant certification for safety
  • Complete Color-Coded Kit: Includes 6 different colored spools of 20 feet (6.1 meters) each in red, black, green, yellow, blue, and white tinned copper wire for easy circuit identification
  • Tinned Copper Benefits: Tinned copper construction provides protection against corrosion, ease of soldering, and maintains the same conductivity as bare copper
  • Versatile Application Wire: Solid core design makes wires easier to insert into breadboard holes and plated through holes of printed circuit boards for prototyping circuits
No. 5
22 awg 0.35mm² Solid Wire kit Electrical Wire Cable 2 Colors 26ft Each Spool Hook up Tinned Copper Wire...
  • UL1007 US certification;Wire Length :8Meters / 26Ft each color/spool,total 2 colors:Black and Red.
  • Conductor Material : 0.35mm² High-purity oxygen-free Solid Tinned Copper wire, Made of Tinned Copper The benefits of having tinned copper wire include protection against corrosion, ease of soldering, specification features high conductivity, low...
  • Insulator:High quality PVC, features flame retardant, high compressive strength adopted, anti-aging, excellent performance in corrosiveness resistance, Resistant to water, oil, Easy stripping, alkalies, moisture, and offers good abrasion resistance; Flame...
  • Voltage Rating: 300 Volts (also can for 12V DC 24V DC to 300V DC); Rated temperature: -20℃ - + 80 ℃; Bear Current:3.0A;
  • Widely used: Can be used for 3528 5050 single color led strip lights,electrical appliance and equipment,transformer,motor lead wire connection,led splitter connection, Car,batteries, electric heating appliances,model planes,model cars,model...
No. 6
Jameco ValuePro 20 AWG Solid Tinned-Copper Bus Bar Wire 100 Feet
  • Tinned copper
  • Solid, soft drawn annealed bare copper
  • Single conductor
No. 7
THHN Wire 12 Gauge Solid Copper Wire, 12 AWG Wire, Black, 25FT
  • THHN wire has good heat resistance, stable operation at high temperatures and improve the instantaneous thermal overload resistance of the wire. It can reduce the escape or migration of the PVC jacket.
  • THHN wire has better electrical and physical properties than PVC jacket wire, more lightweight and it can improve the safety and applicability in wiring. It can work in both wet and dry environments.
  • We use a single strand of copper as a conductor, and 100% pure bare copper can reduce the impact of oxidation on the conductor to extending the service life of the product.
  • PA6 nylon +PVC sheath gets corrosion resistance, self-lubricating and oil resistance. Compared with PVC insulated wire of the same section, it has the advantages of small outer diameter, light weight, small static friction coefficient and corrosion...
  • THHN wire has high flame retardant, the maximum voltage up to 600V, the working temperature up to 90℃, it is often used in residential, CNC, ground wire, lighting, household appliances, automotive.
No. 8
Haerkn 20awg Solid Electrical Wire Kit Cable 2 Colors 23ft Each Spool
  • UL1007 US certification;Wire Length :7Meters / 23Ft each color/spool,total 2 colors:Black and Red.
  • Conductor Material : 0.5mm² High-purity oxygen-free Solid Tinned Copper wire, Made of Tinned Copper The benefits of having tinned copper wire include protection against corrosion, ease of soldering, specification features high conductivity, low...
  • Insulator:High quality PVC, features flame retardant, high compressive strength adopted, anti-aging, excellent performance in corrosiveness resistance, Resistant to water, oil, Easy stripping, alkalies, moisture, and offers good abrasion resistance; Flame...
  • Voltage Rating: 300 Volts (also can for 12V DC 24V DC to 300V DC); Rated temperature: -20℃ - + 80 ℃; Bear Current:5.0A;
  • Widely used: Can be used for 3528 5050 single color led strip lights,electrical appliance and equipment,transformer,motor lead wire connection,led splitter connection, Car,batteries, electric heating appliances,model planes,model cars,model...
No. 9
Treedix 5pcs 164ft Copper Hookup Wire Kit Wrapping 30AWG Cable Jumper Wire
  • The tinned copper wrapping wire can work perfectly for going through the holes in a breadboard. The color can help make it easy to keep what runs where in check.
  • 30AWG Spec: Outside diameter: 0.58mm; Cross sectional area: 0.0507mm²; Resistance: 361Ω/km; 30 Gauge is perfect for low voltage wiring.
  • Using PVC cover material whose heat resistance can be up to 105℃, safe and reliable; Using tinned copper wire core material which is anti-oxidation, more stable transmission.
  • Suitable for welding wrapping wires of notebooks, motherboards, LCD screens, displays and other circuit boards, winding, making test fixtures.
  • A tool for connecting two nodes on the circuit board directly with wires due to design defects, test purposes or other design considerations.

Last update on 2026-08-24 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Solid Interconnect Wire

Understanding Wire Gauge and Application

The wire gauge (AWG) is a critical factor when selecting solid interconnect wire, directly impacting its current-carrying capacity and physical rigidity. Smaller AWG numbers, such as the 14 AWG offered by THE CIMPLE CO, indicate a thicker wire suitable for higher currents and more permanent electrical installations, often rated for 600 volts. Conversely, larger AWG numbers like 22 AWG, commonly found in kits from TUOFENG and Haerkn, are thinner and typically used for low-current applications, such as breadboarding, prototyping with microcontrollers, or internal wiring of electronic devices. The intended application dictates the required gauge; using too thin a wire can lead to overheating and potential hazards, while an excessively thick wire might be difficult to work with in compact spaces.

Conductor Material and Insulation Properties

The conductor material primarily affects conductivity and corrosion resistance. Most solid interconnect wires feature tinned copper, as seen in products from TUOFENG and Haerkn. Tinning the copper provides an extra layer of protection against oxidation, which can be beneficial for long-term reliability and ease of soldering. Bare copper, like that used in Jameco ValuePro's bus bar wire, offers excellent conductivity but is more susceptible to corrosion over time if exposed. The insulation material, typically PVC, is crucial for electrical isolation and protection against environmental factors. Different PVC formulations offer varying degrees of resistance to abrasion, chemicals, and temperature. For instance, THE CIMPLE CO's THHN/THWN wire incorporates PVC with a nylon sheath, providing enhanced protection against moisture and various temperatures, making it suitable for both indoor and outdoor use.

Environmental Ratings and Durability

The environment in which the wire will be used heavily influences the necessary durability and rating. Wires like THE CIMPLE CO's THHN/THWN are specifically designed with thermoplastic insulation and a nylon sheath to protect against moisture and wide temperature fluctuations, making them suitable for conduits and cable trays in demanding commercial or industrial settings. For general electronics and indoor use, standard PVC insulation, as found on TUOFENG and Haerkn products, typically suffices, offering good abrasion resistance and protection against common substances like oil and some solvents. However, for outdoor applications or environments with significant chemical exposure, it's crucial to select wire with insulation explicitly rated for such conditions to ensure long-term performance and safety. Always check for certifications like UL1007 or specific temperature and voltage ratings.

Pros & Cons

TUOFENG 22 AWG Wire Solid Core Hookup Wire, 6 Different Colored Breadboard Wires 30ft Each, Electronic Wire with PVC for Arduino

Pros

  • Offers 6 distinct colors, facilitating organization and circuit tracing in complex projects.
  • 22 AWG is a widely used gauge, making it highly versatile for breadboard and general electronics.
  • PVC insulation provides a balance of flexibility, durability, and resistance to common substances.

Cons

  • Lacks specific temperature or voltage ratings beyond general PVC, limiting use in extreme conditions.
  • The 30ft length per color might be insufficient for very large-scale projects.

22 awg Solid Wire kit Electrical Wire Cable 7colors 26ft Each spools 22 Gauge UL1007 Tinned Copper Hook up Wire kit breadboard Wire for DIY

Pros

  • Comes in 7 different colors, providing extensive options for circuit identification.
  • UL1007 rating confirms adherence to recognized safety and performance standards.
  • Rated for 300 Volts and temperatures from -20 C to +80 C, indicating robust performance for its gauge.

Cons

  • The 26ft length per spool is slightly shorter than some alternatives.
  • Bear Current of 3.0A, while adequate for 22 AWG, requires careful consideration for higher load applications.

THE CIMPLE CO 10 Feet (3 Meter) - Insulated Solid Copper THHN/THWN Wire - 14 AWG, Made in The USA, Residential, Commerical, Industrial, Grounding, Electrical Rated for 600 Volts - in White

Pros

  • Features a heavy-duty 14 AWG solid copper conductor, suitable for high-current applications.
  • THHN/THWN insulation with a nylon sheath offers superior protection against moisture and varying temperatures.
  • Rated for 600 Volts, making it appropriate for residential, commercial, and industrial electrical wiring.

Cons

  • Only available in a single color (white) and a shorter length (10 feet), limiting versatility for multi-circuit projects.
  • The thick gauge and robust insulation can make it less flexible and harder to work with in confined electronic spaces.

Common Mistakes to Avoid

Underestimating Wire Gauge Requirements

A frequent error involves selecting a wire gauge that is too thin for the intended current load. For instance, while a 22 AWG wire, like those from TUOFENG or Haerkn, is excellent for low-power breadboard circuits, attempting to power a high-current device with it can lead to overheating, insulation degradation, and potential fire hazards. Always cross-reference the device's current draw with the wire's rated current capacity; Haerkn's 22 AWG wire, for example, is rated for 3.0A.

Ignoring Insulation Type and Environmental Ratings

Many users overlook the specific properties of wire insulation. Simply assuming all PVC insulation is the same can lead to issues. For outdoor or harsh industrial environments, a basic PVC like that on standard hook-up wire may not suffice. The CIMPLE CO's THHN/THWN wire with its nylon sheath is specifically designed to resist moisture and various temperatures, making it suitable for such applications, unlike a general-purpose hookup wire. Failing to match the insulation to the environment can result in premature wire failure or safety risks.

Overlooking Voltage and Temperature Specifications

Another common oversight is not paying attention to the voltage and temperature ratings. While many solid interconnect wires are suitable for low-voltage electronics, using them in higher voltage applications, such as main electrical circuits, is dangerous. THE CIMPLE CO's 14 AWG wire is explicitly rated for 600 Volts, indicating its suitability for power distribution. Similarly, operating a wire outside its rated temperature range, such as Haerkn's -20 C to +80 C specification, can compromise insulation integrity and conductor performance over time.

Frequently Asked Questions

What are the primary advantages of using solid core wire over stranded wire?
Solid core wire offers superior rigidity, making it ideal for breadboards, permanent installations, and applications where resistance to vibration or repeated flexing is not a concern. It maintains its shape well after bending, which simplifies routing and provides more stable connections in terminals.
Is tinned copper conductor superior to bare copper for general use?
Tinned copper, commonly found in products like TUOFENG and Haerkn wires, provides an extra layer of protection against oxidation and corrosion, which can extend the wire's lifespan and improve solderability. While bare copper offers excellent conductivity, the tinning process generally enhances long-term reliability, especially in humid or corrosive environments.
Can I use 22 AWG solid wire, such as the TUOFENG kit, for household electrical wiring?
No, 22 AWG solid wire is typically too thin for household electrical wiring, which requires much thicker gauges (e.g., 14 AWG or 12 AWG) to safely carry higher currents. Using 22 AWG for such applications poses a significant fire hazard due to inadequate current capacity and voltage rating. Products like THE CIMPLE CO's 14 AWG THHN/THWN are designed for these higher voltage applications.
What does a UL1007 rating, like that on the Haerkn wire, signify?
A UL1007 rating indicates that the wire meets specific safety standards set by Underwriters Laboratories for hook-up wire. It typically specifies requirements for insulation thickness, temperature rating, and flame resistance (e.g., VW-1 and FT1 as seen on Haerkn's product). This certification assures that the wire has been tested and deemed safe for its intended applications.
Why would I choose a wire with THHN/THWN insulation, like THE CIMPLE CO's 14 AWG?
THHN/THWN insulation signifies a wire designed for demanding environments. THHN (Thermoplastic High Heat-resistant Nylon-coated) is rated for dry and damp locations, while THWN (Thermoplastic Heat and Water-resistant Nylon-coated) is rated for wet locations. This combination provides superior resistance to heat, moisture, and abrasion, making it suitable for conduits, cable trays, and general electrical installations where durability is critical.