THWN&TWN75 Wire

THWN /TWN75(Thermoplastic Heat and Water-resistant Nylon-coated) adds water resistance for damp or wet locations. Both feature a tough nylon jacket that resists abrasion, chemicals, and physical damage, paired with a heat-resistant thermoplastic insulation that ensures safety even at elevated temperatures (up to 90°C dry, 75°C wet for standard ratings).

UL83

CSA22.2

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Product Description

THWN /TWN75(Thermoplastic Heat and Water-resistant Nylon-coated) adds water resistance for damp or wet locations. Both feature a tough nylon jacket that resists abrasion, chemicals, and physical damage, paired with a heat-resistant thermoplastic insulation that ensures safety even at elevated temperatures (up to 90°C dry, 75°C wet for standard ratings).

Application

THWN/TWN75 wire,this 90°C, 600 V building wire is for use in residential, commercial, and industrial applications. Type THHN/THWN-2/THWN conductors are primarily used in conduit for services, feeder, and branch circuits.

Applicable Standard

UL83

CSA22.2

Construction

1. Conductor:
1) Annealed solid copper conductor (Size:14-10 AWG)
2)Annealed stranded copper conductor(Size:14-2 AWG)
3) Annealed compressed stranded class B copper conductor(Size:1 AWG-1000 MCM)
2. Insulation: PVC (Color Optional)
3. Jacket: Nylon

Technical Parameters

THHN/TWN75

Size	Conductor			Insulation		Nylon Jacket		Approx. Weight
Size	No.of Wires	Dia. of Wires	Conductor Dia.	Nominal Thickness	Insulation Dia.	Nom. Thickness	Overall Dia.	Approx. Weight
AWG/Kcmil	No.	mm	mm	mm	mm	mm	mm	kg/km
14	1	163	163	0.39	2.41	0.11	2.63	23.4
12	1	2.06	2.06	0.39	2.84	0.11	3.06	35.5
10	1	2.59	2.59	0.51	3.61	0.11	3.83	56.0
14	7	0.62	186	0.39	2.64	0.11	2.86	24.5
12	7	0.78	2.34	0.39	3.12	0.11	3.34	36.7
10	7	0.98	2.94	0.51	3.96	0.11	4.18	578
8	7	1.24	3.72	0.77	5.26	0.13	5.52	95.5
6	7	1.56	4.68	0.77	6.22	0.13	6.48	144.0
4	7	196	5.88	1.02	792	0.16	8.24	229.2
3	7	2.20	6.60	1.02	8.64	0.16	8.96	282.7
2	7	2.48	744	1.02	9.48	0.16	9.80	352.3
1	19	1.69	8.20	1.27	10.74	0.18	11.10	450.7
1/00	19	189	9.20	127	11.74	0.18	12.10	554.2
2/00	19	2.13	10.34	1.27	12.88	0.18	13.24	692.2
3/00	19	2.39	11.61	1.27	14.15	0.18	14.51	859.5
4/00	19	2.68	13.01	1.27	15.55	0.18	15.91	10675
250	37	2.09	14.20	1.53	1726	0.21	17.68	1280.1
300	37	2.29	15.55	1.53	18.61	0.21	19.03	15219
350	37	2.47	16.79	153	19.85	0.21	20.27	17577
400	37	2.64	1796	1.53	2102	0.21	21.44	1996.1
500	37	2.95	20.05	1.53	23.11	0.21	23.53	2469.7
600	61	2.52	22.00	1.78	25.56	0.23	26.02	2994.7
750	61	2.82	24.64	1.78	28.20	0.23	28.66	3718.1
1000	61	3.25	28.40	1.78	3196	0.23	32.42	48918