Wire and Cable Buying Terms Explained, Without Sizing Advice

Wire and cable buying terms describe a product’s construction, markings, ratings, and packaging. Common terms include AWG or kcmil, conductor count, copper or aluminum, solid or stranded, insulation, jacket, voltage rating, temperature rating, and designations such as THHN/THWN-2, NM-B, MC, or SOOW. These details identify a product but do not establish project suitability. Match every order to approved plans, specifications, manufacturer documentation, and qualified project guidance.

Start With the Full Product Identification

“Wire” is often used as a general counter term, but the item may be an insulated conductor, cable assembly, or flexible cord. Do not treat those categories as interchangeable.

Use the full manufacturer part number or print legend from the product, reel, tag, or carton. UL notes that ratings and limitations may require reviewing product markings with the tag and packaging.  UL Solutions Wire and Cable Application Guide] Revco’s  wire, cord, and cable category  when the exact product family is not yet clear. Revco currently organizes this section into building wire, armored cable, portable cord, communications cable, multiplex cable, and other product groups. Cable, and Cord Terms at a Glance

Manufacturer specifications commonly list the conductor, insulation, sheath or jacket, number of conductors, and package configuration as separate product attributes. n Buying Terms

AWG and kcmil

AWG and kcmil are nominal conductor-size designations. They are order details, not instructions for choosing a size. Use the size stated in approved project documents or qualified direction.

Conductor Count and Grounding Notation

Descriptions may state insulated conductor count and separately identify a grounding or bonding component. Read the complete description because neutral, control, signal, or grounding configurations can change the catalog item.

Copper, Aluminum, and Copper-Clad Aluminum

Conductor material is separate from conductor size. UL states that aluminum and copper-clad aluminum products are identified through markings such as “AL,” “ALUMINUM,” or copper-clad wording on the product, tag, or carton.  UL Solutions Wire and Cable Application Guide the specified material and verify equipment and termination requirements through project documents and manufacturer instructions.

Solid, Stranded, and Compact Stranded

“Solid” describes a single-piece conductor. “Stranded” describes a conductor made from multiple strands. “Compact stranded” is a specific construction and may be marked “compact” or “cmpct.” These terms describe construction, not permission to swap products. Manufacturer data commonly lists conductor construction with insulation and sheath information. [CITATION: manufacturer specification sheet] lation, Jacket, and Armor

Insulation surrounds an individual conductor. A jacket or sheath is an outer covering used on many cable and cord assemblies. Armor is a metallic covering used on armored cable products. armored wires and cables when the material list calls for an armored family. Confirm the complete cable type, conductor configuration, armor construction, and manufacturer part number. Revco’s category currently separates aluminum, steel, PVC, and interlocked armor product groups. Designations and Rating Markings

Letter groups such as THHN/THWN-2, NM-B, MC, and SOOW identify product types or evaluated characteristics. UL states that products marked with multiple Type designations have been evaluated for the represented uses, but associated ratings and limitations still require review. [CITATION: UL Solutions Wire and Cable Application Guide] temperature, wet-location, sunlight-resistance, oil-resistance, or direct-burial markings describe specific evaluations, not a complete application decision. Match them to the specification and qualified project guidance. UL’s marking guide explains that these characteristics may appear on the product, reel, tag, or carton. ct Family Names Used When Ordering

Revco’s  building wire category  includes groups such as copper and aluminum building wire, THHN-type products, nonmetallic-sheathed cable, and service-entrance cable. The family name narrows the search, but complete item details finish the order. [LINK: multiplex cables for overhead or underground  covers a specialized product group. “Multiplex” alone is not enough. Bring the utility or project specification, configuration, material, length, and approved manufacturer requirements.

Portable cord descriptions may include service letters, conductor count, jacket material, voltage rating, and package length. OSHA notes that construction-site flexible cords are more susceptible to damage than fixed wiring and carry service markings. OSHA Flexible Cords guidance om a complete designation, not color or outside diameter alone.

What to Bring to the Counter or Quote Request

Provide the details supplied by the project documents:

• Manufacturer name and full part number
• Photo of the print legend and reel or carton tag
• Approved conductor size, material, count, and construction
• Full cable or cord Type designation
• Required color or conductor identification
• Total footage and preferred put-up
• Project specification, material list, or approved equal language
• Required accessories or fittings
• Needed date, pickup branch, or delivery destination

Do not delete “extra letters” from a description. A suffix may identify a material, rating, color, package, or construction difference.

Common Ordering Mistakes

Common mistakes include using a nickname without a type designation, sending only a conductor size, trusting jacket color, and overlooking full reels versus cut lengths.

Similar acronyms are not automatic substitutes. THHN/THWN-2, NM-B, MC, portable cord, and multiplex products describe different constructions and categories. Availability alone is not a sound reason to change a specified product.

Get the Order Clear Before Material Is Cut

Revco can help identify catalog options and prepare pricing from full product markings and project information.

For larger lists or products sold by length,  Request a Quote

Find a Revco Branch  Southampton, East Hampton, Southold, Riverhead, Roky Point, Bohemia

 Register for an Online Account to view account pricing and product-level availability when logged in. Revco’s official site currently lists six Suffolk County branches, and its branch content states that logged-in customers can view account pricing and product-level branch availability. oduct selection, sizing, installation, and code compliance remain with qualified project professionals and applicable authorities.

What is the difference between wire, cable, and cord?

Wire commonly refers to an individual conductor or is used as a general trade term. Cable usually contains one or more conductors assembled into a finished product. Flexible cord is a specific flexible product category. Always use the complete product designation when ordering.

Does AWG tell me which conductor size to buy?

No. AWG is a nominal size designation. The required size must come from approved plans, specifications, manufacturer documentation, or direction from the qualified professional responsible for the project.

What does the conductor count mean?

It identifies the number of conductors included in a product description, but naming conventions can vary. Read the complete description to determine whether grounding, neutral, control, or signal conductors are counted or listed separately.

Can jacket color identify a wire or cable type?

Not reliably. Color may help distinguish certain products, sizes, conductors, or manufacturer lines, but it should not replace the print legend, part number, tag, carton, or specification sheet.

What does “put-up” mean when buying wire or cable?

Put-up refers to the packaged length or supply format. Examples may include a coil, spool, reel, barrel, or cut length. Confirm both the required footage and package format when ordering.

Can solid and stranded conductors be substituted for each other?

Do not assume they are interchangeable. Match the construction stated in the project specification and verify equipment, connector, and termination requirements through approved manufacturer and project documentation.

What should I photograph before requesting a replacement?

Photograph the complete print legend, manufacturer name, part number, Type designation, conductor information, reel or carton tag, and any readable suffixes. A photo showing only the jacket color or cut end may not provide enough information.

How can Revco help with a wire or cable order?

Revco can help search catalog options and prepare pricing when the customer supplies a part number, product markings, approved material list, required footage, package format, and project information. Final sizing and suitability must remain with the qualified project professionals.

EDITORIAL NOTE

This article is provided for product education, order preparation, and general planning only. It does not provide conductor sizing, electrical design, installation, code interpretation, or compliance guidance. Final product selection and use must be confirmed through approved project documents, manufacturer instructions, a licensed electrician or qualified contractor, the project engineer, inspector, authority having jurisdiction, and other responsible professionals as applicable.