Armored vs Non-Armored Cable: What to Confirm Before Ordering

Updated: August 5, 2026

Armored and non-armored cables are available in many constructions for different projects. The visible difference may seem straightforward, but the correct product depends on much more than whether the cable has a metal covering.

This guide explains what information contractors and purchasing teams should collect before requesting a quote. It does not replace project specifications, manufacturer instructions, applicable codes or the judgment of a qualified electrical professional.

What is the difference between armored and non-armored cable?

Armored cable has a protective metallic covering around its conductors. Products within this broad category can differ in armor material, conductor configuration, grounding provisions, outer jackets and environmental ratings.

Non-armored cable does not have metallic armor. This description includes several cable families with different jackets, conductor arrangements and permitted uses.

These labels describe general construction, not whether a particular cable is approved for a specific installation. Always identify the exact cable type and product listing.

Browse Revco’s wire, cord and cable selection, including armored wire and cable and non-metallic sheathed cable.

Start with the approved wiring method

Before comparing products, check the drawings, specifications, approved material list or instructions supplied by the responsible electrical professional. The project documents should identify the required wiring method or provide enough information for a qualified professional to select it.

Terms such as AC, MC, NM-B and UF describe different cable types. They should not be treated as interchangeable abbreviations for “armored” or “non-armored.”

If the project documents are unclear or appear to conflict, stop and obtain clarification from the electrician, engineer, manufacturer or Authority Having Jurisdiction before ordering.

Information to collect before requesting a quote

1. Exact cable type

Provide the required cable designation exactly as it appears in the plans, specifications, product schedule or existing cable markings. If replacing material, photographs of the printed cable legend and reel label can help identify the original product.

2. Conductor details

Record the specified:

• Conductor material
• Conductor size
• Number of conductors
• Grounding conductor requirements
• Neutral or control conductor requirements
• Color-coding or identification requirements

Do not estimate conductor requirements from the cable’s appearance or from another project.

3. Installation environment

Tell the supplier whether the planned location is:

• Indoors or outdoors
• Dry, damp or wet
• Concealed or exposed
• Subject to moisture, sunlight, chemicals or corrosion
• Subject to unusual temperatures or physical damage
• Part of a specially regulated area or occupancy

This information helps identify which product listings and jacket options need to be checked. It does not replace professional approval of the wiring method.

4. Required ratings and approvals

Record any voltage, temperature, flame, sunlight-resistance, environmental or other ratings stated in the project documents. Include required listing information and any customer, facility or municipal approval requirements.

Do not assume every version of a cable family carries the same ratings. Confirm the markings and manufacturer documentation for the exact catalog number.

5. Armor and jacket construction

If armored cable is specified, note whether the project calls for a particular armor material or an outer protective jacket. Steel armor, aluminum armor and jacketed constructions may have different dimensions, weights, fittings and product ratings.

For non-armored cable, record the complete cable designation and jacket requirements rather than requesting only “non-armored wire.”

6. Compatible fittings and accessories

Connectors and other fittings must match the exact cable construction and dimensions. Provide the cable manufacturer and catalog number whenever possible so compatible accessories can be confirmed.

Depending on the specified system, the material list may also include:

• Listed cable connectors
• Boxes and enclosures
• Supports and fastening hardware
• Bushings or other accessories required by the product instructions
• Approved transition fittings

Revco also carries conduit and conduit fittings. Confirm compatibility before adding fittings to the order.

7. Length and packaging

Provide the required total length, number of runs and preferred packaging. Cable may be supplied in coils, reels or project-specific quantities depending on the product and availability.

Allow for the approved takeoff and normal job requirements, but do not add an arbitrary percentage without checking with the person responsible for the material estimate. Ask the selected Revco branch about cut-length availability, reel sizes, lead times and return restrictions before placing the order.

Armored cable is not automatically the better choice

Metal armor can provide useful physical protection, but that does not make every armored product suitable for every environment. Armored cable may also require different preparation tools, fittings and handling than non-armored cable.

Non-armored cable can be appropriate where the approved design permits it. Its lack of metal armor does not by itself make it inferior. The correct choice is the product that matches the project requirements, environment, listing and approved wiring method.

Do not approve substitutions informally

A cable that looks similar or has the same conductor count may still differ in construction, dimensions, grounding provisions, environmental ratings or compatibility with existing fittings.

If the specified product is unavailable, document the proposed substitute and obtain approval from the responsible contractor, engineer, customer or other authorized decision-maker before ordering. Keep the approved submittal or written confirmation with the job records.

Cable quote checklist

Send the following information with your quote request:

• Job name and location
• Required cable type
• Manufacturer and catalog number, if specified
• Conductor material, size and count
• Grounding and control-conductor requirements
• Installation environment
• Required listings and ratings
• Armor and jacket requirements
• Total length and preferred packaging
• Required fittings and accessories
• Requested delivery or pickup date
• Approved alternates, if any

A photograph of the cable legend, reel label, fixture schedule or relevant specification section can help prevent identification errors.

Frequently asked questions

Is armored cable always safer than non-armored cable?

No universal comparison applies. Safety depends on using an approved wiring method and a product that is correctly rated for the specific project and environment.

Is all metal-clad cable suitable for outdoor or wet locations?

No. Product constructions and ratings vary. Check the exact cable markings, manufacturer documentation and approved project requirements.

Are AC and MC cable interchangeable?

No. They are different wiring methods with different constructions and requirements. Use the cable type identified in the approved project documents.

Can the same connector be used with different armored cables?

Not automatically. Confirm that the fitting is listed for the exact cable type and falls within the manufacturer’s stated cable-diameter range.

Can Revco select the wiring method for my project?

Revco can help locate products that match the information you provide. Approval of the wiring method, conductor requirements and installation belongs to the project’s qualified electrical professional and applicable authorities.

What if I cannot identify an existing cable?

Record the complete printed legend and take clear photographs of the cable and any reel or package labels. Have the existing wiring method evaluated by a qualified professional before ordering a replacement.

Preparing a cable order on Long Island

A complete material request helps prevent substitutions, incorrect fittings and job-site delays. Revco serves electrical contractors and other trade professionals across Long Island through multiple branch locations.

Contact your preferred branch with the cable specifications, quantity, required date and pickup or delivery preference. Product availability, cut-length services and lead times may vary by item and location.

Find the most convenient option on Revco’s Long Island locations page.

Before you place the order

Confirm the approved cable type, conductor details, environment, ratings, fittings and length. Avoid choosing a product from appearance alone, and obtain written approval before accepting a substitute.

About Revco Lighting & Electrical Supply

Since 1978, Revco Lighting & Electrical Supply has served contractors, builders and trade professionals across Long Island. Our team helps customers source lighting and electrical products for residential, commercial and industrial projects.

Call (631) 283-3600 or contact your preferred Revco branch for product availability and quote assistance.