1-1 CU-THHN

THHN


600 Volts. Copper Conductor

Thermoplastic Insulation/Nylon Sheath
Heat, Moisture, Gasoline, Oil Resistant1

Also Rated MTW and THWN

Sizes 14 through 10 solid and stranded

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APPLICATIONS

Southwire Type THHN or THWN-2* conductors are primarily used in conduit and cable trays for services, feeders, and branch circuits in commercial or industrial applications as specified in the 2008 National Electrical Code. When used as Type THHN, or T90 Nylon conductor is suitable for use in dry locations at temperatures not to exceed 90 °C. When used as Type THWN-2* or TWN75, conductor is suitable for use in wet or dry locations at temperatures not to exceed 90 °C or not to exceed 75 °C when exposed to oil or coolant. When used as Type MTW, conductor is suitable for use in wet locations or when exposed to oil or coolant at temperatures not to exceed 60 °C or dry locations at temperatures not to exceed 90 °C (with ampacity limited to that for 75 °C conductor temperature per NFPA 79). Conductor temperatures not to exceed 105 °C in dry locations when rated AWM and used as appliance wiring material or when used asT90 Nylon. Voltage for all applications is 600 volts.

 

SPECIFICATIONS

Southwire Type THHN or THWN-2* or MTW (also AWM) meets or exceeds all applicable ASTM specifications, UL Standard 83, UL 1581, UL Standard 1063 (MTW), CSA,  NOM-ANCE 90(D)C, Federal Specification A-A-59544, and requirements of the National Electrical Code (NFPA70).

 

 

 

CONSTRUCTION

Southwire Type THHN or THWN-2* or MTW copper conductors are annealed (soft) copper, compressed strand, insulated with a tough heat and moisture resistant polyvinyl chloride (PVC), over which a nylon (polyamide) or UL-listed equal jacket is applied. Available in black, white, red, blue, purple, green, yellow, brown, orange, and gray. Some colors standard, some subject to economic order quantity. Conductor sizes 2 AWG and larger listed and marked sunlight resistant in all colors.

 

1Oil and gasoline resistant II as defined by Underwriters Laboratories.

*rated -2 for 8 AWG and larger only.

 

Conductor

Insulation

Thickness (mils)

Jacket Thickness

(mils)

Nominal O.D. (mils)

Approx. Net Weight Per 1000 ft. (Ibs)

Allowable Ampacities+

Standard Package

Size (AWG or kcmil

Num. Strands

Sol.

Str.

Sol.

Str.

60°C

75°C

90°C

14

7

15

4

102

109

15

16

15

15

15

DNF

12

7

15

4

119

128

23

24

20

20

20

DNF

10

7

20

4

150

161

36

38

30

30

30

DQF

8

19

30

5

--

213

--

63

40

50

55

F

6

19

30

5

--

249

--

95

55

65

75

E

4

19

40

6

--

318

--

152

70

85

95

C

3

19

40

6

--

346

--

189

85

100

110

BC

2

19

40

6

--

378

--

234

95

115

130

C

1

19

50

7

--

435

--

299

110

130

150

B

1/0

19

50

7

--

474

--

372

125

150

170

B

2/0

19

50

7

--

518

--

462

145

175

195

B

3/0

19

50

7

--

568

--

575

165

200

225

B

4/0

19

50

7

--

624

--

718

195

230

260

B

250

37

60

8

--

678

--

851

215

255

290

B

300

37

60

8

--

730

--

1012

240

285

320

B

350

37

60

8

--

777

--

1174

260

310

350

B

400

37

60

8

--

821

--

1334

280

335

380

B

500

37

60

8

--

902

--

1655

320

380

430

B

600

61

70

9

--

998

--

1987

355

420

475

C

750

61

70

9

--

1126

--

2464

400

475

535

C

1000

61

70

9

--

1275

--

3257

455

545

615

C

Solid construction available in sizes 14 through 10 AWG as Types THHN or THWN or AWM only.
Sizes 14 through 6 AWG also suitable for 105°C appliance wiring material (AWM).
Sizes 14 and 12 AWG contain four 500 ft. spools per carton.  Size 10 AWG contains two 500 ft. spools per carton.
+Allowable ampacities shown are for general use as specified by the National Electrical Code, 2008 Edition, section 310.15 unless the equipment is marked for use at higher temperatures the conductor ampacity shall be limited to the following.
60°C - When terminated to equipment for circuits rated 100 amperes or less or marked for size 14 through 1 AWG conductors. MTW wet locations or when exposed to oil or coolant.
75°C - When terminated to equipment for circuits rated over 100 amperes or marked for conductors larger than size 1 AWG. THWN-2 when exposed to oil or coolant. MTW dry locations.
90°C - THHN dry locations. THWN-2 wet or dry locations. For ampacity derating purposes.

STANDARD PACKAGE CODES:
B - 1000 ft. reel
C - 500 ft. reel
D - 2500 ft. spool
E - 1000 ft. spool
F - 500 ft. spool
N - 2000 ft. carton
Q - 350 ft. carton

 

RECOMMENDED SAMPLE SPECIFICATIONS:

(MTW or THHN or THWN-2)
Conductors shall be UL-listed Type MTW or THHN or THWN-2* gasoline and oil resistant II, suitable for operations at 600 volts as specified in the National Electrical Code. Sizes 14 through 1 AWG shall be rated VW-1, larger sizes shall be listed for CT use. Sizes 2 AWG and larger listed and marked sunlight resistant in black only. Conductors shall be annealed copper, insulated with high-heat and moisture resistant PVC, jacketed with abrasion, moisture, gasoline, and oil resistant nylon or listed equivalent, as manufactured by Southwire Company or approved equal.

(AWM)
Conductors shall be UL-listed Type THHN or THWN-2* or MTW or AWM, suitable for operation at 600 volts at conductor temperatures not to exceed 105 °C.

*rated -2 for 8 AWG and larger only.