Stranding Classes Chart/Table for Electrical Wire & Cable (Class A – M)

By 1X TechnologiesUncategorized
Stranding Classes wire and cable charts tables and data

STRANDING CLASSES CHART/TABLE 1XTECH® ELECTRICAL WIRE & CABLE CONDUCTOR STRAND TYPES (Class A – M)

1X Technologies manufactures and sells copper and aluminum electrical and networking (electronic) wire & cable with multiple options of stranding classes for your conductor. Below you will find information on strands from class A (Solid) through class M (Extra flexible). Please contact us if you need more information or if you require a quote on any type of wire & cable. Below you will find reference charts and tables that will help you with most of your standing questions, and you may contact us if you need more information. Thank you.

 

TYPICAL WIRE & CABLE STRANDS FROM 1X TECHNOLOGIES
AWG       
SizesSolidClass BClass CClass HClass KClass LClass M
26 .0167 – – – – 7/.008 7/.0063
24 .0201 7/.0080 19/.0046 – – 7/.008 –
22 .0253 7/.0100 19/.0058 – 7/.010 7/.008 19/.0063
20 .0320 7/.0126 19/.0080 – 10/.010 16/.008 26/.0063
19 .03589 – – – – – –
18 .0403 7/.0152 19/.0100 – 16/.010 26/.008 41/.0063
16 .0508 7/.0192 19/.0113 – 26/.010 41/.008 65/.0063
14 .0641 7/.0242 19/.0147 – 41/.010 65/.008 104/.0063
12 .0808 7/.0305 19/.0185 – 65/.010 104/.008 168/.0063
10 .1019 7/.0385 19/.0234 – 104/.010 165/.008 259/.0063
9 .1144 7/.0432 19/.0262 133/.0099 133/.010  336/.0063
8 .1285 7/.0486 19/.0295 133/.0111 168/.010  420/.0063
6  7/.0612 19/.0372 133/.0142 266/.010  665/.0063
4  7/.0772 19/.0469 133/.0179 420/.010  1064/.0063
2  7/.0974 19/.0591 133/.0223 665/.010  1666/.0063
1  19/.0664 37/.0476 259/.0180 836/.010  2107/.0063
1/0  19/.0745 37/.0534 259/.0202 1064/.010  2646/.0063
2/0  19/.0837 37/.0600 259/.0227 1323/.010  3325/.0063
3/0  19/.0940 37/.0673 259/.0255 1666/.010  4256/.0063
4/0  19/.1055 37/.0756 259/.0286 2107/.010  5320/.0063
250 MCM  37/.0822 61/.0640 427/.0242 2499/.010  6384/.0063
300 MCM  37/.0900 61/.0701 427/.0265 2989/.010  7581/.0063
350 MCM  37/.0973 61/.0757 427/.0287 3458/.010  8806/.0063
400 MCM  37/.1040 61/.0810 427/.0306 3990/.010  10101/.0063
500 MCM  37/.1162 61/.0905 427/.0342 5054/.010  12691/.0063
750 MCM  61/.1109 91/.0908 427/.0417 7581/.010  18788/.0063
1000 MCM  61/.1280 91/.1048 427/.0484 10101/.010  25193/.0063
Note: For UL listed or recognized 200C cables requiring 200C and tin-coated copper strands, each strand diameter should be 015” or larger.

1XTECH® ELECTRICAL WIRE & CABLE STRANDING CLASSES & TYPES

CONCENTRIC-LAY CONDUCTORS

CLASS B: Power Cables.

CLASS C: Power cables where more flexible stranding than Class B is desired.

CLASS D: Power cables where extra flexible stranding is desired.

ROPE-LAY & BUNCH STRANDED CONDUCTORS

CLASS G: All cables for portable use.

CLASS H: Cables where extreme flexibility is required. (i.e. take-up reels)

CLASS I: Apparatus cable and motor leads.

CLASS K: Cords and cables composed of No. 30 AWG copper wires. Stationary service.

CLASS M: Cords and cables composed of No. 34 AWG copper wires. Constant service.

 

Types of Stranding

If a cable with a stranded conductor seems to be the appropriate choice for your application, you then need to consider the type of stranding. Although most constructions are specified by regulatory agencies, it is helpful to know some basic information about each type.

Bunched: Strands are gathered together with no particular design or arrangement. This is the least expensive type of stranding as it involves the least amount of time and labor. Bunched stranding provides great flexibility.
Concentric: Strands are arranged in a circular pattern. Each layer alternates direction and has an increasing lay length (the center strand is longest). Concentric stranding is mostly chosen for its mechanical strength and crush resistance.
Unilay: Strands are arranged in a circular pattern, but all layers are twisted in the same direction and share the same lay length. A unilay arrangement is lightweight and allows for a small diameter.
Rope lay: Strands are arranged into cabled groups. Each group usually consists of 7, 13, 19, or 27 strands since those counts can be gathered into a circular configuration easily. Rope lay is the most flexible type of stranding and is generally found in cables size 10 AWG and larger.

 

 

Custom Stranding

Additionally, you may require custom stranding such as a combination of the above like a Bunch Strand – Rope Lay, or Equilay, which offers Strands similar to those in concentric stranding, but lay length is the same for each layer. If you need a custom Stranding just let us know.

 

 

Common Questions we receive every day on wire & cable Stranding Classes

Do you have any of these common questions? If so, contact us now and we will be happy to assist you.

  • What are the stranding classes used for?
  • What class of wire is used for wire stranding?
  • What is stranding in cable construction?
  • What is a stranded conductor?