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THHN or THWN-2 Cable

THHN or THWN-2 cable are primarily used in conduit and cable trays for services, feeders, and branch circuits in commercial or industrial applications as specified in the National Electrical Code. Voltage for all applications is 600 volts.

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APPLICATION:
THHN or THWN-2 cable are primarily used in conduit and cable trays for services, feeders, and branch circuits in commercial or industrial applications as specified in the National Electrical Code. Voltage for all applications is 600 volts.

THHN conductors are designed to be used without application of pulling lubricant. Allowable temperatures are as follows:
THHN Nylon- Dry locations should not exceed 90℃;
THWN-2- Wet or dry locations should not exceed 90℃ and It should not exceed 75℃ when exposed to oil.

THHN/THWN-2 NYLON - ALUMINUM CONDUCTOR are Compact Stranded Conductors, Aluminum Alloy 8000 Series per ASTM B800; ASTM B801; ASTM B836;

THHN/THWN-2 NYLON - COPPER CONDUCTOR are soft annealed copper. #14 - 4/0 AWG uses a combination unilay strand and 250 kcmil and larger uses a compressed copper strand. The wire is insulated with a tough heat and moisture resistant poly vinyl chloride (PVC), over which a nylon (polyamide) jacket is applied. Available in black, white, red, blue, purple, green, yellow, orange, brown and gray. Some colors are subject to economic order quantity.Marked sunlight resistant in sizes 2 AWG and larger.

THHN/THWN-2 - NYLON - ALUMINUM CONDUCTOR - 600V
Conductors		Compact Diameter of Aluminum Conductor (inch)	PVC Insulation Thickness (inch)	Nylon Jacket Thickness (inch)	Approximate Outside Diameter (inch)	Approximate Net Weight (lbs/1000 ft)	*Allowable Ampacities (amps)
Size (AWG orKCMIL)	No.of Strands	Compact Diameter of Aluminum Conductor (inch)	PVC Insulation Thickness (inch)	Nylon Jacket Thickness (inch)	Approximate Outside Diameter (inch)	Approximate Net Weight (lbs/1000 ft)	*60°C	*75°C	*90°C
8	7	0.134	0.03	0.005	0.204	26	35	40	45
6	7	0.169	0.03	0.005	0.239	37	40	50	55
4	7	0.213	0.04	0.006	0.305	60	55	65	75
3	7	0.238	0.04	0.006	0.33	73	65	75	85
2	7	0.268	0.04	0.006	0.36	88	75	90	100
1	8	0.299	0.05	0.007	0.413	115	85	100	115
1/0	10	0.336	0.05	0.007	0.45	139	100	120	135
2/0	12	0.376	0.05	0.007	0.49	169	115	135	150
3/0	15	0.423	0.05	0.007	0.537	206	130	155	175
4/0	19	0.475	0.05	0.007	0.589	253	150	180	205
250	22	0.52	0.06	0.008	0.656	306	170	205	230
300	21	0.57	0.06	0.008	0.706	359	195	230	260
350	24	0.616	0.06	0.008	0.752	411	210	250	280
400	27	0.659	0.06	0.008	0.795	463	225	270	305
500	34	0.736	0.06	0.008	0.872	568	260	310	350
600	41	0.813	0.07	0.009	0.971	690	285	340	385
700	45	0.877	0.07	0.009	1.035	794	315	375	425
750	47	0.908	0.07	0.009	1.066	844	320	385	435
900	58	0.999	0.07	0.009	1.157	999	355	425	480
1000	58	1.06	0.07	0.009	1.22	1100	375	445	500

THHN /THWN-2 -NYLON-COPPER CONDUCTOR -600 Volts.
Conductor		Insulation Thickness (mils)	Jacket Thickness (mils)	Nominal O.D. (mils)	Approx. Weight per 1000' (lbs)	Allowable Ampacities+
Size (AWG or kcmil)	Number of Strands	Insulation Thickness (mils)	Jacket Thickness (mils)	Nominal O.D. (mils)	Approx. Weight per 1000' (lbs)	60º C	75º C	90º C
14*	1	15	4	102	15	15	15	15
12*	1	15	4	119	23	20	20	20
10*	1	20	4	150	36	30	30	30
14*	19	15	4	109	16	15	15	15
12*	19	15	4	128	24	20	20	20
10*	19	20	4	161	38	30	30	30
8	19	30	5	213	63	40	50	55
6	19	30	5	249	95	55	65	75
4	19	40	6	318	152	70	85	100
3	19	40	6	346	189	85	100	115
2	19	40	6	378	234	95	115	130
1	19	50	7	435	299	110	130	145
1/0	19	50	7	474	372	125	150	170
2/0	19	50	7	518	462	145	175	195
3/0	19	50	7	568	575	165	200	225
4/0	19	50	7	624	718	195	230	260
250	37	60	8	694	851	215	255	290
300	37	60	8	747	1012	240	285	320
350	37	60	8	797	1174	260	310	350
400	37	60	8	842	1334	280	335	380
500	37	60	8	926	1655	320	380	430
600	61	70	9	1024	1987	350	420	475
750	61	70	9	1126	2464	400	475	535
1000	61	70	9	1275	3257	455	545	615

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