Annex C. Conduit and Tubing Fill Tables for Conductors and Fixture Wires of the Same Size

This Annex is not part of the requirements of the NFPA document but is listed for informational purposes.

Reprinted with permission from NFPA 70-2005, the National Electrical Code®, Copyright © 2004, National Fire Protection Association, Quincy, MA 02269. This reprinted material is not the referenced subject which is represented only by the standard in its entirety.

Table	Page
C1Electrical Metallic Tubing (EMT)	305
C1(A)[*]Electrical Metallic Tubing (EMT)	310
C2Electrical Nonmetallic Tubing (ENT)	312
C2(A)[*]Electrical Nonmetallic Tubing (ENT)	317
C3Flexible Metal Conduit (FMC)	319
C3(A)[*]Flexible Metal Conduit (FMC)	324
C4Intermediate Metal Conduit (IMC)	326
C4(A)[*]Intermediate Metal Conduit (IMC)	331
C5Liquidtight Flexible Nonmetallic Conduit (Type LFNC-B)	333
C5(A)[*]Liquidtight Flexible Nonmetallic Conduit (Type LFNC-B)	338
C6Liquidtight Flexible Nonmetallic Conduit (Type LFNC-A)	340
C6(A)[*]Liquidtight Flexible Nonmetallic Conduit (Type LFNC-A)	345
C7Liquidtight Flexible Metal Conduit (LFMC)	347
C7(A)[*]Liquidtight Flexible Metal Conduit (LFMC)	352
C8Rigid Metal Conduit (RMC)	354
C8(A)[*]Rigid Metal Conduit (RMC)	362
C9Rigid PVC Conduit, Schedule 80	365
C9(A)[*]Rigid PVC Conduit, Schedule 80	373
C10Rigid PVC Conduit, Schedule 40 and HDPE Conduit	376
C10(A)[*]Rigid PVC Conduit, Schedule 40 and HDPE Conduit	383
C11Type A, Rigid PVC Conduit	386
C11(A)[*]Type A, Rigid PVC Conduit	391
C12Type EB, PVC Conduit	393
C12(A)[*]Type EB, PVC Conduit	397

[*] Where this table is used in conjunction with Tables C1 through C12, the conductors installed must be of the compact type.

Table C1. Maximum Number of Conductors or Fixture Wires in Electrical Metallic Tubing (EMT) (Based on Table 1, Chapter 9)

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[*] Types RHH, RHW, and RHW-2 without outer covering.

Fixture Wires
Type	Conductor Size (AWG/kcmil)	Metric Designator (Trade Size)
		16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
FFH-2,	18	8	14	24	41	56	92
RFH-2,	16	7	12	20	34	47	78
RFHH-3
SF-2, SFF-2	18	10	18	30	52	71	116
	16	8	15	25	43	58	96
	14	7	12	20	34	47	78
SF-1, SFF-1	18	18	33	53	92	125	206
RFH-1,	18	14	24	39	68	92	152
RFHH-2, TF,
TFF, XF, XFF
RFHH-2, TF,	16	11	19	31	55	74	123
TFF, XF, XFF
XF, XFF	14	8	15	25	43	58	96
TFN, TFFN	18	22	38	63	108	148	244
	16	17	29	48	83	113	186
PF, PFF, PGF,	18	21	36	59	103	140	231
PGFF, PAF,	16	16	28	46	79	108	179
PTF, PTFF,	14	12	21	34	60	81	134
PAFF
ZF, ZFF, ZHF,	18	27	47	77	133	181	298
HF, HFF	16	20	35	56	98	133	220
	14	14	25	41	72	98	161
KF-2, KFF-2	18	39	69	111	193	262	433
	16	27	48	78	136	185	305
	14	19	33	54	93	127	209
	12	13	23	37	64	87	144
	10	8	15	25	43	58	96
KF-1, KFF-1	18	46	82	133	230	313	516
	16	33	57	93	161	220	362
	14	22	38	63	108	148	244
	12	14	25	41	72	98	161
	10	9	16	27	47	64	105
XF, XFF	12	4	8	13	23	31	51
	10	3	6	10	18	24	40

 

Table C1(A). Maximum Number of Compact Conductors in Electrical Metallic Tubing (EMT) (Based on Table 1, Chapter 9)

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Table C2. Maximum Number of Conductors or Fixture Wires in Electrical Nonmetallic Tubing (ENT) (Based on Table 1, Chapter 9)

Conductors
Type	Conductor Size (AWG/kcmil)	Metric Designator (Trade Size)
		16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
RHH, RHW,	14	3	6	10	19	26	43
RHW-2	12	2	5	9	16	22	36
	10	1	4	7	13	17	29
	8	1	1	3	6	9	15
	6	1	1	3	5	7	12
	4	1	1	2	4	6	9
	3	1	1	1	3	5	8
	2	0	1	1	3	4	7
	1	0	1	1	1	3	5
	1/0	0	0	1	1	2	4
	2/0	0	0	1	1	1	3
	3/0	0	0	1	1	1	3
	4/0	0	0	1	1	1	2
	250	0	0	0	1	1	1
	300	0	0	0	1	1	1
	350	0	0	0	1	1	1
	400	0	0	0	1	1	1
	500	0	0	0	0	1	1
	600	0	0	0	0	1	1
	700	0	0	0	0	0	1
	750	0	0	0	0	0	1
	800	0	0	0	0	0	1
	900	0	0	0	0	0	1
	1000	0	0	0	0	0	1
	1250	0	0	0	0	0	0
	1500	0	0	0	0	0	0
	1750	0	0	0	0	0	0
	2000	0	0	0	0	0	0
TW	14	7	13	22	40	55	92
	12	5	10	17	31	42	71
	10	4	7	13	23	32	52
	8	1	4	7	13	17	29
RHH[*],	14	4	8	15	27	37	61
RHW[*],
RHW-2[*],
THHW,
THW,
THW-2
RHH[*],	12	3	7	12	21	29	49
RHW[*],	10	3	5	9	17	23	38
RHW-2[*],
THHW, THW
RHH[*],	8	1	3	5	10	14	23
RHW[*],	6	1	2	4	7	10	17
RHW-2[*],	4	1	1	3	5	8	13
TW, THW,	3	1	1	2	5	7	11
THHW,	2	1	1	2	4	6	9
THW-2	1	0	1	1	3	4	6
	1/0	0	1	1	2	3	5
	2/0	0	1	1	1	3	5
	3/0	0	0	1	1	2	4
	4/0	0	0	1	1	1	3
	250	0	0	1	1	1	2
	300	0	0	0	1	1	2
	350	0	0	0	1	1	1
	400	0	0	0	1	1	1
	500	0	0	0	1	1	1
	600	0	0	0	0	1	1
	700	0	0	0	0	1	1
	750	0	0	0	0	1	1
	800	0	0	0	0	1	1
	900	0	0	0	0	0	1
	1000	0	0	0	0	0	1
	1250	0	0	0	0	0	1
	1500	0	0	0	0	0	0
	1750	0	0	0	0	0	0
	2000	0	0	0	0	0	0
THHN,	14	10	18	32	58	80	132
THWN,	12	7	13	23	42	58	96
THWN-2	10	4	8	15	26	36	60
	8	2	5	8	15	21	35
	6	1	3	6	11	15	25
	4	1	1	4	7	9	15
	3	1	1	3	5	8	13
	2	1	1	2	5	6	11
	1	1	1	1	3	5	8
	1/0	0	1	1	3	4	7
	2/0	0	1	1	2	3	5
	3/0	0	1	1	1	3	4
	4/0	0	0	1	1	2	4
	250	0	0	1	1	1	3
	300	0	0	1	1	1	2
	350	0	0	0	1	1	2
	400	0	0	0	1	1	1
	500	0	0	0	1	1	1
THHN,	600	0	0	0	1	1	1
THWN,	700	0	0	0	0	1	1
THWN-2	750	0	0	0	0	1	1
	800	0	0	0	0	1	1
	900	0	0	0	0	1	1
	1000	0	0	0	0	0	1
FEP, FEPB,	14	10	18	31	56	77	128
PFA, PFAH,	12	7	13	23	41	56	93
TFE	10	5	9	16	29	40	67
	8	3	5	9	17	23	38
	6	1	4	6	12	16	27
	4	1	2	4	8	11	19
	3	1	1	4	7	9	16
	2	1	1	3	5	8	13
PFA, PFAH,	1	1	1	1	4	5	9
TFE
PFA, PFAH,	1/0	0	1	1	3	4	7
TFE, Z	2/0	0	1	1	2	4	6
	3/0	0	1	1	1	3	5
	4/0	0	1	1	1	2	4
Z	14	12	22	38	68	93	154
	12	8	15	27	48	66	109
	10	5	9	16	29	40	67
	8	3	6	10	18	25	42
	6	1	4	7	13	18	30
	4	1	3	5	9	12	20
	3	1	1	3	6	9	15
	2	1	1	3	5	7	12
	1	1	1	2	4	6	10
XHH,	14	7	13	22	40	55	92
XHHW,	12	5	10	17	31	42	71
XHHW-2,	10	4	7	13	23	32	52
ZW	8	1	4	7	13	17	29
	6	1	3	5	9	13	21
	4	1	1	4	7	9	15
	3	1	1	3	6	8	13
	2	1	1	2	5	6	11
XHH,	1	1	1	1	3	5	8
XHHW,	1/0	0	1	1	3	4	7
XHHW-2	2/0	0	1	1	2	3	6
	3/0	0	1	1	1	3	5
	4/0	0	0	1	1	2	4
	250	0	0	1	1	1	3
	300	0	0	1	1	1	3
	350	0	0	1	1	1	2
	400	0	0	0	1	1	1
	500	0	0	0	1	1	1
	600	0	0	0	1	1	1
	700	0	0	0	0	1	1
	750	0	0	0	0	1	1
	800	0	0	0	0	1	1
	900	0	0	0	0	1	1
	1000	0	0	0	0	0	1
	1250	0	0	0	0	0	1
	1500	0	0	0	0	0	1
	1750	0	0	0	0	0	0
	2000	0	0	0	0	0	0
Note 1: This table is for concentric stranded conductors only. For compact stranded conductors, Table C2(A) should be used.
Note 2: Two-hour fire-rated RHH cable has ceramifiable insulation, which has much larger diameters than other RHH wires. Consult manufacturer's conduit fill tables.

[*] Types RHH, RHW, and RHW-2 without outer covering.

Fixture Wires
Type	Conductor Size (AWG/kcmil)	Metric Designator (Trade Size)
		16 (½)	21 (¾)	27 (1)	35 (1½)	41 (1½)	53 (2)
FFH-2,	18	6	12	21	39	53	88
RFH-2,	16	5	10	18	32	45	74
RFHH-3,
SF-2,	18	8	15	27	49	67	111
SFF-2	16	7	13	22	40	55	92
	14	5	10	18	32	45	74
SF-1,	18	15	28	48	86	119	197
SFF-1
RFH -1,	18	11	20	35	64	88	145
RFHH -2,
TF, TFF,
XF, XFF
RFHH-2,	16	9	16	29	51	71	117
TF, TFF,
XF, XFF
XF, XFF	14	7	13	22	40	55	92
TFN,	18	18	33	57	102	141	233
TFFN	16	13	25	43	78	107	178
PF, PFF,	18	17	31	54	97	133	221
PGF,	16	13	24	42	75	103	171
PGFF,	14	10	18	31	56	77	128
PAF, PTF,
PTFF,
PAFF
ZF, ZFF,	18	22	40	70	125	172	285
ZHF, HF,	16	16	29	51	92	127	210
HFF	14	12	22	38	68	93	154
KF-2,	18	31	58	101	182	250	413
KFF-2	16	22	41	71	128	176	291
	14	15	28	49	88	121	200
	12	10	19	33	60	83	138
	10	7	13	22	40	55	92
KF-1,	18	38	69	121	217	298	493
KFF-1	16	26	49	85	152	209	346
	14	18	33	57	102	141	233
	12	12	22	38	68	93	154
	10	7	14	24	44	61	101
XF, XFF	12	3	7	12	21	29	49
	10	3	5	9	17	23	38

Table C2(A). Maximum Number of Compact Conductors in Electrical Nonmetallic Tubing (ENT) (Based on Table 1, Chapter 9)

Compact Conductors
Type	Conductor Size (AWG/kcmil)	Metric Designator (Trade Size)
		16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
THW,	8	1	3	6	11	15	25
THW-2,	6	1	2	4	8	11	19
THHW	4	1	1	3	6	8	14
	2	1	1	2	4	6	10
	1	0	1	1	3	4	7
	1/0	0	1	1	3	4	6
	2/0	0	1	1	2	3	5
	3/0	0	1	1	1	3	4
	4/0	0	0	1	1	2	4
	250	0	0	1	1	1	3
	300	0	0	1	1	1	2
	350	0	0	0	1	1	2
	400	0	0	0	1	1	1
	500	0	0	0	1	1	1
	600	0	0	0	1	1	1
	700	0	0	0	0	1	1
	750	0	0	0	0	1	1
	900	0	0	0	0	1	1
	1000	0	0	0	0	0	1
THHN,	8
THWN,	6	1	4	7	12	17	28
THWN-2	4	1	2	4	7	10	17
	2	1	1	3	5	7	12
	1	1	1	2	4	5	9
	1/0	1	1	1	3	5	8
	2/0	0	1	1	3	4	6
	3/0	0	1	1	2	3	5
	4/0	0	1	1	1	2	4
	250	0	0	1	1	1	3
	300	0	0	1	1	1	3
	350	0	0	1	1	1	2
	400	0	0	0	1	1	2
	500	0	0	0	1	1	1
	600	0	0	0	1	1	1
	700	0	0	0	1	1	1
THHN,	750	0	0	0	1	1	1
THWN,	900	0	0	0	0	1	1
THWN-2	1000	0	0	0	0	1	1
XHHW,	8	2	4	8	14	19	32
XHHW-2	6	1	3	6	10	14	24
	4	1	2	4	7	10	17
	2	1	1	3	5	7	12
	1	1	1	2	4	5	9
	1/0	1	1	1	3	5	8
	2/0	0	1	1	3	4	7
	3/0	0	1	1	2	3	5
	4/0	0	1	1	1	3	4
	250	0	0	1	1	1	3
	300	0	0	1	1	1	3
	350	0	0	1	1	1	3
	400	0	0	1	1	1	2
	500	0	0	0	1	1	1
	600	0	0	0	1	1	1
	700	0	0	0	1	1	1
	750	0	0	0	1	1	1
	900	0	0	0	0	1	1
	1000	0	0	0	0	1	1
Definition: Compact stranding is the result of a manufacturing process where the standard conductor is compressed to the extent that the interstices (voids between strand wires) are virtually climated.

 

Table C3. Maximum Number of Conductors or Fixture Wires in Flexible Metal Conduit (FMC) (Based on Table 1, Chapter 9)

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[*] Types RHH, RHW, and RHW-2 without outer covering.

Fixture Wires
Type	Conductor Size (AWG/kcmil)	Metric Designator (Trade Size)
		16 (½)	21 (¾)	27 (1)	35 (1½)	41 (1½)	53 (2)
FFH-2,	18	8	14	22	35	51	90
RFH-2,	16	7	12	19	29	43	76
RFHH-3
SF-2,	18	11	18	28	44	64	113
SFF-2	16	9	15	23	36	53	94
	14	7	12	19	29	43	76
SF-1,	18	19	32	50	78	114	201
SFF-1
RFH-1,	18	14	24	37	58	84	148
RFHH-2,
TF, TFF,
XF, XFF
RFHH-2,	16	11	19	30	47	68	120
TF, TFF,
XF, XFF
XF, XFF	14	9	15	23	36	53	94
TFN,	18	23	38	59	93	135	237
TFFN	16	17	29	45	71	103	181
PF, PFF,	18	22	36	56	88	128	225
PGF,	16	17	28	43	68	99	174
PGFF,	14	12	21	32	51	74	130
PAF, PTF,
PTFF,
PAFF
ZF, ZFF,	18	28	47	72	113	165	290
ZHF, HF,	16	20	35	53	83	121	214
HFF	14	15	25	39	61	89	157
KF-2,	18	41	68	105	164	239	421
KFF-2	16	28	48	74	116	168	297
	14	19	33	51	80	116	204
	12	13	23	35	55	80	140
	10	9	15	23	36	53	94
KF-1,	18	48	82	125	196	285	503
KFF-1	16	34	57	88	138	200	353
	14	23	38	59	93	135	237
	12	15	25	39	61	89	157
	10	10	16	25	40	58	103
XF, XFF	12	5	8	12	19	28	50
	10	4	6	10	15	22	39

 

Table C3(A). Maximum Number of Compact Conductors in Flexible Metal Conduit (FMC) (Based on Table 1, Chapter 9)

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Table C4. Maximum Number of Conductors or Fixture Wires in Intermediate Metal Conduit (IMC) (Based on Table 1, Chapter 9)

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[5] Types RHH, RHW, and RHW-2 without outer covering.

Fixture Wires
Type	Conductor Size (AWG/kcmil)	Metric Designator (Trade Size)
		16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
FHH-2,	18	9	16	26	45	61	100
RFH-2,	16	8	13	22	38	51	84
RFHH-3
SF-2,	18	12	20	33	57	77	126
SFF-2	16	10	17	27	47	64	104
	14	8	13	22	38	51	84
SF-1,	18	21	36	59	101	137	223
SFF-1
RFH-1,	18	15	26	43	75	101	165
RFHH-2,
TF, TFF,
XF, XFF
RFH-2,	16	12	21	35	60	81	133
TF, TFF,
XF, XFF
XF, XFF	14	10	17	27	47	64	104
TFN,	18	25	42	69	119	161	264
TFFN	16	19	32	53	91	123	201
PF, PFF,	18	23	40	66	113	153	250
PGF,	16	18	31	51	87	118	193
PGFF,	14	13	23	38	66	89	145
PAF,
PTF,
PTFF,
PAFF
ZF, ZFF,	18	30	52	85	146	197	322
ZHF, HF,	16	22	38	63	108	145	238
HFF	14	16	28	46	79	107	175
KF-2,	18	44	75	123	212	287	468
KFF-2	16	31	53	87	149	202	330
	14	21	36	60	103	139	227
	12	14	25	41	70	95	156
	10	10	17	27	47	64	104
KF-1,	18	52	90	147	253	342	558
KFF-1	16	37	63	103	178	240	392
	14	25	42	69	119	161	264
	12	16	28	46	79	107	175
	10	10	18	30	52	70	114
XF, XFF	12	5	9	14	25	34	56
	10	4	7	11	19	26	43

 

Table C4(A). Maximum Number of Compact Conductors in Intermediate Metal Conduit (IMC) (Based on Table 1, Chapter 9)

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Table C5. Maximum Number of Conductors or Fixture Wires in Liquidtight Flexible Nonmetallic Conduit (Type LFNC-B[*]) (Based on Table 1, Chapter 9)

Conductors
Type	Conductor size (AWG/kcmil)	Metric Designator (Trade Size)
		12 (3/8)	16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
RHH,	14	2	4	7	12	21	27	44
RHW,	12	1	3	6	10	17	22	36
RHW-2	10	1	3	5	8	14	18	29
	8	1	1	2	4	7	9	15
	6	1	1	1	3	6	7	12
	4	0	1	1	2	4	6	9
	3	0	1	1	1	4	5	8
	2	0	1	1	1	3	4	7
	1	0	0	1	1	1	3	5
	1/0	0	0	1	1	1	2	4
	2/0	0	0	1	1	1	1	3
	3/0	0	0	0	1	1	1	3
	4/0	0	0	0	1	1	1	2
	250	0	0	0	0	1	1	1
	300	0	0	0	0	1	1	1
	350	0	0	0	0	1	1	1
	400	0	0	0	0	1	1	1
	500	0	0	0	0	1	1	1
	600	0	0	0	0	0	1	1
	700	0	0	0	0	0	0	1
	750	0	0	0	0	0	0	1
	800	0	0	0	0	0	0	1
	900	0	0	0	0	0	0	1
	1000	0	0	0	0	0	0	1
	1250	0	0	0	0	0	0	0
	1500	0	0	0	0	0	0	0
	1750	0	0	0	0	0	0	0
	2000	0	0	0	0	0	0	0
TW,	14	5	9	15	25	44	57	93
	12	4	7	12	19	33	43	71
	10	3	5	9	14	25	32	53
	8	1	3	5	8	14	18	29
RHH[],	14	3	6	10	16	29	38	62
RHW[],
RHW-2[],
THHW,
THW,
THW-2
RHH[],	12	3	5	8	13	23	30	50
RHW[],	10	1	3	6	10	18	23	39
RHW-2[],
THHW,
THW
RHH[],	8	1	1	4	6	11	14	23
RHW[],
RHW-2[],
THHW,
THW,
THW-2
RHH[],	6	1	1	3	5	8	11	18
RHW[],	4	1	1	1	3	6	8	13
RHW-2[],	3	1	1	1	3	5	7	11
TW,	2	0	1	1	2	4	6	9
THW,	1	0	1	1	1	3	4	7
THHW,	1/0	0	0	1	1	2	3	6
THW-2	2/0	0	0	1	1	2	3	5
	3/0	0	0	1	1	1	2	4
	4/0	0	0	0	1	1	1	3
	250	0	0	0	1	1	1	3
	300	0	0	0	1	1	1	2
	350	0	0	0	0	1	1	1
	400	0	0	0	0	1	1	1
	500	0	0	0	0	1	1	1
	600	0	0	0	0	1	1	1
	700	0	0	0	0	0	1	1
	750	0	0	0	0	0	1	1
	800	0	0	0	0	0	1	1
	900	0	0	0	0	0	0	1
	1000	0	0	0	0	0	0	1
	1250	0	0	0	0	0	0	1
	1500	0	0	0	0	0	0	0
	1750	0	0	0	0	0	0	0
	2000	0	0	0	0	0	0	0
THHN,	14	8	13	22	36	63	81	133
THWN,	12	5	9	16	26	46	59	97
THWN-2	10	3	6	10	16	29	37	61
	8	1	3	6	9	16	21	35
	6	1	2	4	7	12	15	25
	4	1	1	2	4	7	9	15
	3	1	1	1	3	6	8	13
	2	1	1	1	3	5	7	11
	1	0	1	1	1	4	5	8
THHN,	1/0	0	1	1	1	3	4	7
THWN,	2/0	0	0	1	1	2	3	6
THWN-2	3/0	0	0	1	1	1	3	5
	4/0	0	0	1	1	1	2	4
	250	0	0	0	1	1	1	3
	300	0	0	0	1	1	1	3
	350	0	0	0	1	1	1	2
	400	0	0	0	0	1	1	1
	500	0	0	0	0	1	1	1
	600	0	0	0	0	1	1	1
	700	0	0	0	0	1	1	1
	750	0	0	0	0	0	1	1
	800	0	0	0	0	0	1	1
	900	0	0	0	0	0	1	1
	1000	0	0	0	0	0	0	1
FEP,	14	7	12	21	35	61	79	129
FEPB,	12	5	9	15	25	44	57	94
PFA,	10	4	6	11	18	32	41	68
PFAH,	8	1	3	6	10	18	23	39
TFE	6	1	2	4	7	13	17	27
	4	1	1	3	5	9	12	19
	3	1	1	2	4	7	10	16
	2	1	1	1	3	6	8	13
PFA,	1	0	1	1	2	4	5	9
PFAH,
TFE
PFA,	1/0	0	1	1	1	3	4	7
PFAH
TFE,Z	2/0	0	1	1	1	3	4	6
	3/0	0	0	1	1	2	3	5
	4/0	0	0	1	1	1	2	4
Z	14	9	15	26	42	73	95	156
	12	6	10	18	30	52	67	111
	10	4	6	11	18	32	41	68
	8	2	4	7	11	20	26	43
	6	1	3	5	8	14	18	30
	4	1	1	3	5	9	12	20
	3	1	1	2	4	7	9	15
	2	0	1	1	3	6	7	12
	1	0	1	1	2	5	6	10
XHH,	14	5	9	15	25	44	57	93
XHHW,	12	4	7	12	19	33	43	71
XHHW-2,	10	3	5	9	14	25	32	53
ZW	8	1	3	5	8	14	18	29
	6	1	1	3	6	10	13	22
XHH,	4	1	1	2	4	7	9	16
XHHW,	3	1	1	1	3	6	8	13
XHHW-2,	2	1	1	1	3	5	7	11
ZW
XHH,	1	0	1	1	1	4	5	8
XHHW,	1/0	0	1	1	1	3	4	7
XHHW-2	2/0	0	0	1	1	2	3	6
	3/0	0	0	1	1	1	3	5
	4/0	0	0	1	1	1	2	4
	250	0	0	0	1	1	1	3
	300	0	0	0	1	1	1	3
	350	0	0	0	1	1	1	2
	400	0	0	0	0	1	1	1
	500	0	0	0	0	1	1	1
	600	0	0	0	0	1	1	1
	700	0	0	0	0	1	1	1
	750	0	0	0	0	0	1	1
	800	0	0	0	0	0	1	1
	900	0	0	0	0	0	1	1
	1000	0	0	0	0	0	0	1
	1250	0	0	0	0	0	0	1
	1500	0	0	0	0	0	0	1
	1750	0	0	0	0	0	0	0
	2000	0	0	0	0	0	0	0
Fixture Wires
FFH-2,	18	5	8	15	24	42	54	89
RFH-2	16	4	7	12	20	35	46	75
SF-2,	18	6	11	19	30	53	69	113
SFF-2	16	5	9	15	25	44	57	93
	14	4	7	12	20	35	46	75
SF-1,	18	11	19	33	53	94	122	199
SFF-1
RFH-1,	18	8	14	24	39	69	90	147
RFHH-2,
TF, TFF,
XF, XFF
RFHH-2,	16	7	11	20	32	56	72	119
TF, TFF,
XF, XFF
XF, XFF	14	5	9	15	25	44	57	93
TFN,	18	14	23	39	63	111	144	236
TFFN	16	10	17	30	48	85	110	180
PF,PFF,	18	13	21	37	60	105	136	223
PGF,	16	10	16	29	46	81	105	173
PGFF,	14	7	12	21	35	61	79	129
PAF,
PTF,
PTFF,
PAFF
HF,HFF,	18	17	28	48	77	136	176	288
ZF,ZFF,	16	12	20	35	57	100	129	212
ZHF	14	9	15	26	42	73	95	156
KF-2,	18	24	40	70	112	197	255	418
KFF-2	16	17	28	49	79	139	180	295
	14	12	19	34	54	95	123	202
	12	8	13	23	37	65	85	139
	10	5	9	15	25	44	57	93
KF-1,	18	29	48	83	134	235	304	499
KFF-1	16	20	34	58	94	165	214	350
	14	14	23	39	63	111	144	236
	12	9	15	26	42	73	95	156
	10	6	10	17	27	48	62	102
XF,XFF	12	3	5	8	13	23	30	50
	10	1	3	6	10	18	23	39
Note 1: This table is for concentric stranded conductors only. For compact stranded conductors, Table C5(A) should be used.
Note 2: Two-hour fire-rated RHH cable has ceramifiable insulation, which has much larger diameters than other RHH wires. Consult manufacturer's conduit fill tables.

[*] Corresponds to 356.2(2).

[images/ent/U2020.GIF border=0>] Types RHH, RHW, and RHW-2 without outer covering.

Table C5(A). Maximum Number of Compact Conductors in Liquidtight Flexible Nonmetallic Conduit (Type LFNC-B[*]) (Based on Table 1, Chapter 9)

Compact Conductors
Type	Conductor size (AWG/kcmil)	Metric Designator (Trade Size)
		12 (3/8)	16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
THW,	8	1	2	4	7	12	15	25
THW-2,	6	1	1	3	5	9	12	19
THHW	4	1	1	2	4	7	9	14
	2	1	1	1	3	5	6	11
	1	0	1	1	1	3	4	7
	1/0	0	1	1	1	3	4	6
	2/0	0	0	1	1	2	3	5
	3/0	0	0	1	1	1	3	4
	4/0	0	0	1	1	1	2	4
	250	0	0	0	1	1	1	3
	300	0	0	0	1	1	1	2
	350	0	0	0	1	1	1	2
	400	0	0	0	0	1	1	1
	500	0	0	0	0	1	1	1
	600	0	0	0	0	1	1	1
	700	0	0	0	0	1	1	1
	750	0	0	0	0	0	1	1
	900	0	0	0	0	0	1	1
	1000	0	0	0	0	0	1	1
THHN,	8
THWN,	6	1	2	4	7	13	17	28
THWN-2	4	1	1	3	4	8	11	17
	2	1	1	1	3	6	7	12
	1	0	1	1	2	4	6	9
	1/0	0	1	1	1	4	5	8
	2/0	0	1	1	1	3	4	6
	3/0	0	0	1	1	2	3	5
	4/0	0	0	1	1	1	3	4
	250	0	0	1	1	1	1	3
	300	0	0	0	1	1	1	3
	350	0	0	0	1	1	1	2
	400	0	0	0	1	1	1	2
	500	0	0	0	0	1	1	1
	600	0	0	0	0	1	1	1
	700	0	0	0	0	1	1	1
	750	0	0	0	0	1	1	1
	900	0	0	0	0	0	1	1
	1000	0	0	0	0	0	1	1
XHHW,	8	1	3	5	9	15	20	33
XHHW-2	6	1	2	4	6	11	15	24
	4	1	1	3	4	8	11	17
	2	1	1	1	3	6	7	12
	1	0	1	1	2	4	6	9
XHHW,	1/0	0	1	1	1	4	5	8
XHHW-2	2/0	0	1	1	1	3	4	7
	3/0	0	0	1	1	2	3	5
	4/0	0	0	1	1	1	3	4
	250	0	0	1	1	1	1	3
	300	0	0	0	1	1	1	3
	350	0	0	0	1	1	1	3
	400	0	0	0	1	1	1	2
	500	0	0	0	0	1	1	1
	600	0	0	0	0	1	1	1
	700	0	0	0	0	1	1	1
	750	0	0	0	0	1	1	1
	900	0	0	0	0	0	1	1
	1000	0	0	0	0	0	1	1
Definition: Compact stranding is the result of a manufacturing process where the standard conductor is compressed to the extent that the interstices (voids between strand wires) are virtually eliminated.

[*] Corresponds to 356.2(2).

Table C6. Maximun Number of Conductors or Fixture Wires in Liquidtight Flexible Nonmetallic Conduit (Type LFNC-A[*]) (Based on Table 1, Chapter 9)

Conductors
Type	Conductor size (AWG/kcmil)	Metric Designator (Trade Size)
		12 (3/8)	16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
RHH,	14	2	4	7	11	20	27	45
RHW,	12	1	3	6	9	17	23	38
RHW-2	10	1	3	5	8	13	18	30
	8	1	1	2	4	7	9	16
	6	1	1	1	3	5	7	13
	4	0	1	1	2	4	6	10
	3	0	1	1	1	4	5	8
	2	0	1	1	1	3	4	7
	1	0	0	1	1	1	3	5
	1/0	0	0	1	1	1	2	4
	2/0	0	0	1	1	1	1	4
	3/0	0	0	0	1	1	1	3
	4/0	0	0	0	1	1	1	3
	250	0	0	0	0	1	1	1
	300	0	0	0	0	1	1	1
	350	0	0	0	0	1	1	1
	400	0	0	0	0	1	1	1
	500	0	0	0	0	0	1	1
	600	0	0	0	0	0	1	1
	700	0	0	0	0	0	0	1
	750	0	0	0	0	0	0	1
	800	0	0	0	0	0	0	1
	900	0	0	0	0	0	0	1
	1000	0	0	0	0	0	0	1
	1250	0	0	0	0	0	0	0
	1500	0	0	0	0	0	0	0
	1750	0	0	0	0	0	0	0
	2000	0	0	0	0	0	0	0
TW	14	5	9	15	24	43	58	96
	12	4	7	12	19	33	44	74
	10	3	5	9	14	24	33	55
	8	1	3	5	8	13	18	30
RHH[],	14	3	6	10	16	28	38	64
RHW[],
RHW-2[],
THHW,
THW,
THW-2
RHH[],	12	3	4	8	13	23	31	51
RHW[],	10	1	3	6	10	18	24	40
RHW-2[],
THHW,
THW
RHH[],	8	1	1	4	6	10	14	24
RHW[],
RHW-2[],
THHW,
THW,
THW-2
RHH[],	6	1	1	3	4	8	11	18
RHW[],	4	1	1	1	3	6	8	13
RHW-2[],	3	1	1	1	3	5	7	11
TW,THW,	2	0	1	1	2	4	6	10
THHW,	1	0	1	1	1	3	4	7
THW-2
	1/0	0	0	1	1	2	3	6
	2/0	0	0	1	1	1	3	5
	3/0	0	0	1	1	1	2	4
	4/0	0	0	0	1	1	1	3
	250	0	0	0	1	1	1	3
	300	0	0	0	1	1	1	2
	350	0	0	0	0	1	1	1
	400	0	0	0	0	1	1	1
	500	0	0	0	0	1	1	1
	600	0	0	0	0	1	1	1
	700	0	0	0	0	0	1	1
	750	0	0	0	0	0	1	1
	800	0	0	0	0	0	1	1
	900	0	0	0	0	0	0	1
	1000	0	0	0	0	0	0	1
	1250	0	0	0	0	0	0	1
	1500	0	0	0	0	0	0	1
	1750	0	0	0	0	0	0	0
	2000	0	0	0	0	0	0	0
THHN,	14	8	13	22	35	62	83	137
THWN,	12	5	9	16	25	45	60	100
THWN-2	10	3	6	10	16	28	38	63
	8	1	3	6	9	16	22	36
	6	1	2	4	6	12	16	26
	4	1	1	2	4	7	9	16
	3	1	1	1	3	6	8	13
	2	1	1	1	3	5	7	11
	1	0	1	1	1	4	5	8
	1/0	0	1	1	1	3	4	7
	2/0	0	0	1	1	2	3	6
	3/0	0	0	1	1	1	3	5
	4/0	0	0	1	1	1	2	4
THHN,	250	0	0	0	1	1	1	3
THWN,	300	0	0	0	1	1	1	3
THWN-2	350	0	0	0	1	1	1	2
	400	0	0	0	0	1	1	1
	500	0	0	0	0	1	1	1
	600	0	0	0	0	1	1	1
	700	0	0	0	0	1	1	1
	750	0	0	0	0	0	1	1
	800	0	0	0	0	0	1	1
	900	0	0	0	0	0	1	1
	1000	0	0	0	0	0	0	1
FEP,	14	7	12	21	34	60	80	133
FEPB,	12	5	9	15	25	44	59	97
PFA,	10	4	6	11	18	31	42	70
PFAH,	8	1	3	6	10	18	24	40
TFE	6	1	2	4	7	13	17	28
	4	1	1	3	5	9	12	20
	3	1	1	2	4	7	10	16
	2	1	1	1	3	6	8	13
PFA,	1	0	1	1	2	4	5	9
PFAH,
TFE
PFA,	1/0	0	1	1	1	3	5	8
PFAH,	2/0	0	1	1	1	3	4	6
TFE,Z	3/0	0	0	1	1	2	3	5
	4/0	0	0	1	1	1	2	4
Z	14	9	15	25	41	72	97	161
	12	6	10	18	29	51	69	114
	10	4	6	11	18	31	42	70
	8	2	4	7	11	20	26	44
	6	1	3	5	8	14	18	31
	4	1	1	3	5	9	13	21
	3	1	1	2	4	7	9	15
	2	1	1	1	3	6	8	13
	1	1	1	1	2	4	6	10
XHH,	14	5	9	15	24	43	58	96
XHHW,	12	4	7	12	19	33	44	74
XHHW-2,	10	3	5	9	14	24	33	55
ZW	8	1	3	5	8	13	18	30
	6	1	1	3	5	10	13	22
	4	1	1	2	4	7	10	16
	3	1	1	1	3	6	8	14
	2	1	1	1	3	5	7	11
XHH,	1	0	1	1	1	4	5	8
XHHW,	1/0	0	1	1	1	3	4	7
XHHW-2	2/0	0	0	1	1	2	3	6
	3/0	0	0	1	1	1	3	5
	4/0	0	0	1	1	1	2	4
	250	0	0	0	1	1	1	3
	300	0	0	0	1	1	1	3
	350	0	0	0	1	1	1	2
	400	0	0	0	0	1	1	1
	500	0	0	0	0	1	1	1
	600	0	0	0	0	1	1	1
	700	0	0	0	0	1	1	1
	750	0	0	0	0	0	1	1
	800	0	0	0	0	0	1	1
	900	0	0	0	0	0	1	1
	1000	0	0	0	0	0	0	1
	1250	0	0	0	0	0	0	1
	1500	0	0	0	0	0	0	1
	1750	0	0	0	0	0	0	0
	2000	0	0	0	0	0	0	0
Fixture Wires
FFH-2,	18	5	8	14	23	41	55	92
RFH-2	16	4	7	12	20	35	47	77
SF-2,	18	6	11	18	29	52	70	116
SFF-2	16	5	9	15	24	43	58	96
	14	4	7	12	20	35	47	77
SF-1,	18	12	19	33	52	92	124	205
SFF-1
RFH-1,	18	8	14	24	39	68	91	152
RFHH-2,
TF,TFF,
XF,XFF
RFHH-2,	16	7	11	19	31	55	74	122
TF,TFF,
XF,XFF
XF,XFF	14	5	9	15	24	43	58	96
TFN,TFFN	18	14	22	39	62	109	146	243
	16	10	17	29	47	83	112	185
PF,PFF,	18	13	21	37	59	103	139	230
PGF,	16	10	16	28	45	80	107	178
PGFF,	14	7	12	21	34	60	80	133
PAF,PTF,
PTFF,
PAFF
HF,HFF,	18	17	27	47	76	133	179	297
ZF,ZFF,	16	12	20	35	56	98	132	219
ZHF	14	9	15	25	41	72	97	161
KF-2,	18	25	40	69	110	193	260	431
KFF-2	16	17	28	48	77	136	183	303
	14	12	19	33	53	94	126	209
	12	8	13	23	36	64	86	143
	10	5	9	15	24	43	58	96
KF-1,	18	29	48	82	131	231	310	514
KFF-1	16	21	33	57	92	162	218	361
	14	14	22	39	62	109	146	243
	12	9	15	25	41	72	97	161
	10	6	10	17	27	47	63	105
XF,XFF	12	3	4	8	13	23	31	51
	10	1	3	6	10	18	24	40
Note 1: This table is for concentric stranded conductors only. For compact stranded conductors, Table C6(A) should be used.
Note 2: Two-hour fire-rated RHH cable has ceramifiable insulation, which has much larger diameters than other RHH wires. Consult manufacturer's conduit fill tables.

[*] Corresponds to 356.2(1).

[images/ent/U2020.GIF border=0>] Types RHH, RHW, and RHW-2 without outer covering.

Table C6(A). Maximum Number of Compact Conductors in Liquidtight Flexible Nonmetallic Conduit (Type LFNC-A[*]) (Based on Table 1, Chapter 9)

Compact Conductors
Type	Conductor size (AWG/kcmil)	Metric Designator (Trade Size)
		12 (3/8)	16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
THW,	8	1	2	4	6	11	16	26
THW-2,	6	1	1	3	5	9	12	20
THHW	4	1	1	2	4	7	9	15
	2	1	1	1	3	5	6	11
	1	0	1	1	1	3	4	8
	1/0	0	1	1	1	3	4	7
	2/0	0	0	1	1	2	3	5
	3/0	0	0	1	1	1	3	5
	4/0	0	0	1	1	1	2	4
	250	0	0	0	1	1	1	3
	300	0	0	0	1	1	1	3
	350	0	0	0	1	1	1	2
	400	0	0	0	0	1	1	1
	500	0	0	0	0	1	1	1
	600	0	0	0	0	1	1	1
	700	0	0	0	0	1	1	1
	750	0	0	0	0	0	1	1
	900	0	0	0	0	0	1	1
	1000	0	0	0	0	0	1	1
THHN,	8
THWN,	6	1	2	4	7	13	18	29
THWN-2	4	1	1	3	4	8	11	18
	2	1	1	1	3	6	8	13
	1	0	1	1	2	4	6	10
	1/0	0	1	1	1	3	5	8
	2/0	0	1	1	1	3	4	7
	3/0	0	0	1	1	2	3	6
	4/0	0	0	1	1	1	3	5
	250	0	0	1	1	1	1	3
	300	0	0	0	1	1	1	3
	350	0	0	0	1	1	1	3
	400	0	0	0	1	1	1	2
	500	0	0	0	0	1	1	1
	600	0	0	0	0	1	1	1
	700	0	0	0	0	1	1	1
	750	0	0	0	0	1	1	1
	900	0	0	0	0	0	1	1
	1000	0	0	0	0	0	1	1
XHHW,	8	1	3	5	8	15	20	34
XHHW-2	6	1	2	4	6	11	15	25
	4	1	1	3	4	8	11	18
	2	1	1	1	3	6	8	13
	1	0	1	1	2	4	6	10
	1/0	0	1	1	1	3	5	8
	2/0	0	1	1	1	3	4	7
	3/0	0	0	1	1	2	3	6
	4/0	0	0	1	1	1	3	5
	250	0	0	1	1	1	2	4
	300	0	0	0	1	1	1	3
	350	0	0	0	1	1	1	3
	400	0	0	0	1	1	1	2
	500	0	0	0	0	1	1	1
	600	0	0	0	0	1	1	1
	700	0	0	0	0	1	1	1
	750	0	0	0	0	1	1	1
	900	0	0	0	0	0	1	1
	1000	0	0	0	0	0	1	1
Definition: Compact stranding is the result of a manufacturing process where the standard conductor is compressed to the extent that the interstices (voids between strand wires) are virtually eliminated.

[*] Corresponds to 356.2(1).

Table C7. Maximum Number of Conductors or Fixture Wires in Liquidtight Flexible Metal Conduit (LFMC) (Based on Table 1, Chapter 9)

[View Full Width]

[*] Types RHH, RHW, and RHW-2 without outer covering.

Fixture Wires
Type	Conductor size (AWG/kcmil)	Metric Designator (Trade Size)
		16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
FFH-2,	18	8	15	24	42	54	89
RFH-2,	16	7	12	20	35	46	75
RFHH-3
SF-2,	18	11	19	30	53	69	113
SFF-2	16	9	15	25	44	57	93
	14	7	12	20	35	46	75
SF-1,	18	19	33	53	94	122	199
SFF-1
RFH -1,	18	14	24	39	69	90	147
RFHH-2,
TF,TFF,
XF, XFF
RFHH-2,	16	11	20	32	56	72	119
TF,TFF,
XF, XFF
XF,XFF	14	9	15	25	44	57	93
TFN,	18	23	39	63	111	144	236
TFFN	16	17	30	48	85	110	180
PF,PFF,	18	21	37	60	105	136	223
PGF,	16	16	29	46	81	105	173
PGFF,	14	12	21	35	61	79	129
PAF,
PTF,
PTFF,
PAFF
HF,HFF,	18	28	48	77	136	176	288
ZF,ZFF,	16	20	35	57	100	129	212
ZHF	14	15	26	42	73	95	156
KF-2,	18	40	70	112	197	255	418
KFF-2	16	28	49	79	139	180	295
	14	19	34	54	95	123	202
	12	13	23	37	65	85	139
	10	9	15	25	44	57	93
KF-1,	18	48	83	134	235	304	499
KFF-1	16	34	58	94	165	214	350
	14	23	39	63	111	144	236
	12	15	26	42	73	95	156
	10	10	17	27	48	62	102
XF,	12	5	8	13	23	30	50
XFF	10	3	6	10	18	23	39

 

Table C7(A). Maximum Number of Compact Conductors in Liquidtight Flexible Metal Conduit (LFMC) (Based on Table 1, Chapter 9)

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Table C8. Maximum Number of Conductors or Fixture Wires in Rigid Metal Conduit (RMC) (Based on Table 1, Chapter 9)

[View Full Width]

[*] Types RHH, RHW, and RHW-2 without outer covering.

Fixture Wires
Type	Conductor Size (AWG/kcmil)	Metric Designator (Trade Size)
		16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
FFH-2,	18	8	15	24	42	57	94
RFH-2,	16	7	12	20	35	48	79
RFHH-3
SF-2,	18	11	19	31	53	72	118
SFF-2	16	9	15	25	44	59	98
	14	7	12	20	35	48	79
SF-1,	18	19	33	54	94	127	209
SFF-1
RFH-1,	18	14	25	40	69	94	155
RFHH-2,
TF, TFF,
XF, XFF
RFHH-2,	16	11	20	32	56	76	125
TF, TFF,
XF, XFF
XF, XFF	14	9	15	25	44	59	98
TFN,	18	23	40	64	111	150	248
TFFN	16	17	30	49	84	115	189
PF, PFF,	18	21	38	61	105	143	235
PGF,	16	16	29	47	81	110	181
PGFF,	14	12	22	35	61	83	136
PAF, PTF,
PTFF,
PAFF
HF,	18	28	48	79	135	184	303
HFF, ZF,	16	20	36	58	100	136	223
ZFF, ZHF	14	15	26	42	73	100	164
KF-2,	18	40	71	114	197	267	439
KFF-2	16	28	50	80	138	188	310
	14	19	34	55	95	129	213
	12	13	23	38	65	89	146
	10	9	15	25	44	59	98
KF-1,	18	48	84	136	235	318	524
KFF-1	16	34	59	96	165	224	368
	14	23	40	64	111	150	248
	12	15	26	42	73	100	164
	10	10	17	28	48	65	107
XF,	12	5	8	13	23	32	52
XFF	10	3	6	10	18	25	41

 

Table C8(A). Maximum Number of Compact Conductors in Rigid Metal Conduit (RMC) (Based on Table 1, Chapter 9)

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Table C9. Maximum Number of Conductors or Fixture Wires in Rigid PVC Conduit, Schedule 80 (Based on Table 1, Chapter 9)

[View Full Width]

[*] Types RHH, RHW, and RHW-2 without outer covering.

Fixture Wires
Type	Conductor Size (AWG/kcmil)	Metric Designator (Trade Size)
		16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
FFH-2,	18	6	11	19	34	47	79
RFH-2,	16	5	9	16	28	39	67
RFHH-3
SF-2,	18	7	14	24	43	59	100
SFF-2	16	6	11	20	35	49	82
	14	5	9	16	28	39	67
SF-1,	18	13	25	42	76	105	177
SFF-1
RFH-1,	18	10	18	31	56	77	130
RFHH-2,
TF, TFF,
XF, XFF
RFHH-2,	16	8	15	25	45	62	105
TF, TFF,
XF, XFF
XF, XFF	14	6	11	20	35	49	82
TFN,	18	16	29	50	90	124	209
TFFN	16	12	22	38	68	95	159
PF, PFF,	18	15	28	47	85	118	198
PGF,	16	11	22	36	66	91	153
PGFF,	14	8	16	27	49	68	115
PAF,
PTF,
PTFF,
PAFF
HF, HFF,	18	19	36	61	110	152	255
ZF, ZFF,	16	14	27	45	81	112	188
ZHF	14	10	19	33	59	82	138
KF-2,	18	28	53	88	159	220	371
KFF-2	16	19	37	62	112	155	261
	14	13	25	43	77	107	179
	12	9	17	29	53	73	123
	10	6	11	20	35	49	82
KF-1,	18	33	63	106	190	263	442
KFF-1	16	23	44	74	133	185	310
	14	16	29	50	90	124	209
	12	10	19	33	59	82	138
	10	7	13	21	39	54	90
XF, XFF	12	3	6	10	19	26	44
	10	2	5	8	15	20	34
Note 1: This table is for concentric stranded conductors only. For compact stranded conductors, Table C9(A) should be used.
Note 2: Two-hour fire-rated RHH cable has ceramifiable insulation, which has much larger diameters than other RHH wires. Consult manufacturer's conduit fill tables.

 

Table C9(A). Maximum Number of Compact Conductors in Rigid PVC Conduit, Schedule 80 (Based on Table 1, Chapter 9)

[View Full Width]

Table C10. Maximum Number of Conductors or Fixture Wires in Rigid PVC Conduit, Schedule 40 and HDPE Conduit (Based on Table 1, Chapter 9)

[View Full Width]

[*] Types RHH, RHW, and RHW-2 without outer covering.

Fixture Wires
Type	Conductor Size (AWG/kcmil)	Metric Designator (Trade Size)
		16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
FFH-2,	18	8	14	23	40	54	90
RFH-2,	16	6	12	19	33	46	76
RFHH-3
SF-2,	18	10	17	29	50	69	114
SFF-2	16	8	14	24	42	57	94
	14	6	12	19	33	46	76
SF-1,	18	17	31	51	89	122	202
SFF-1
RFHH-2,	18	13	23	38	66	90	149
TF, TFF,
XF, XFF,
RFH-1
RFFH-2,	16	10	18	30	53	73	120
TF, TFF,
XF, XFF
XF, XFF	14	8	14	24	42	57	94
TFN,	18	20	37	60	105	144	239
TFFN	16	16	28	46	80	110	183
PF, PFF,	18	19	35	57	100	137	227
PGF,	16	15	27	44	77	106	175
PGFF,	14	11	20	33	58	79	131
PAF, PTF,
PTFF,
PAFF
HF, HFF,	18	25	45	74	129	176	292
ZF, ZFF,	16	18	33	54	95	130	216
ZHF	14	13	24	40	70	95	158
KF-2,	18	36	65	107	187	256	424
KFF-2	16	26	46	75	132	180	299
	14	17	31	52	90	124	205
	12	12	22	35	62	85	141
	10	8	14	24	42	57	94
KF-1,	18	43	78	128	223	305	506
KFF-1	16	30	55	90	157	214	355
	14	20	37	60	105	144	239
	12	13	24	40	70	95	158
	10	9	16	26	45	62	103
XF, XFF	12	4	8	12	22	30	50
	10	3	6	10	17	24	39

 

Table C10(A). Maximum Number of Compact Conductors in Rigid PVC Conduit, Schedule 40 and HDPE Conduit (Based on Table 1, Chapter 9)

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Table C11. Maximum Number of Conductors or Fixture Wires in Type A, Rigid PVC Conduit (Based on Table 1, Chapter 9)

[View Full Width]

[*] Types RHH, RHW, and RHW-#2 without outer covering.

Fixture Wires
Type	Conductor Size (AWG/kcmil)	Metric Designator (Trade Size)
		16 (½)	21 (¾)	27 (1)	35 (1¼)	41 (1½)	53 (2)
FFH-2,	18	10	18	30	48	64	100
RFH-2,	16	9	15	25	41	54	85
RFHH-3
SF-2,	18	13	22	37	61	81	127
SFF-2	16	11	18	31	51	67	105
	14	9	15	25	41	54	85
SF-1,	18	23	40	66	108	143	224
SFF-1
RFH-1,	18	17	29	49	80	105	165
RFHH-2,
TF, TFF,
XF, XFF
RFHH-2,	16	14	24	39	65	85	134
TF, TFF,
XF, XFF
XF,XFF	14	11	18	31	51	67	105
TFN,	18	28	47	79	128	169	265
TFFN	16	21	36	60	98	129	202
PF,PFF,	18	26	45	74	122	160	251
PGF,	16	20	34	58	94	124	194
PGFF,	14	15	26	43	70	93	146
PAF,
PTF,
PTFF,
PAFF
HF, HFF,	18	34	58	96	157	206	324
ZF, ZFF,	16	25	42	71	116	152	239
ZHF	14	18	31	52	85	112	175
KF-2,	18	49	84	140	228	300	470
KFF-2	16	35	59	98	160	211	331
	14	24	40	67	110	145	228
	12	16	28	46	76	100	157
	10	11	18	31	51	67	105
KF-1,	18	59	100	167	272	357	561
KFF-1	16	41	70	117	191	251	394
	14	28	47	79	128	169	265
	12	18	31	52	85	112	175
	10	12	20	34	55	73	115
XF,XFF	12	6	10	16	27	35	56
	10	4	8	13	21	28	44

 

Table C11(A). Maximum Number of Compact Conductors in Type A, Rigid PVC Conduit (Based on Table 1, Chapter 9)

[View Full Width]

Table C12. Maximum Number of Conductors in Type EB, PVC Conduit (Based on Table 1, Chapter 9)

Conductors
Type	Conductor Size (AWG/kcmil)	Metric Designator (Trade Size)
		53 (2)	78 (3)	91 (3½)	103 (4)	129 (5)	155 (6)
RHH,	14	53	119	155	197	303	430
RHW,	12	44	98	128	163	251	357
RHW-2	10	35	79	104	132	203	288
	8	18	41	54	69	106	151
	6	15	33	43	55	85	121
	4	11	26	34	43	66	94
	3	10	23	30	38	58	83
	2	9	20	26	33	50	72
	1	6	13	17	21	33	47
	1/0	5	11	15	19	29	41
	2/0	4	10	13	16	25	36
	3/0	4	8	11	14	22	31
	4/0	3	7	9	12	18	26
	250	2	5	7	9	14	20
	300	1	5	6	8	12	17
	350	1	4	5	7	11	16
	400	1	4	5	6	10	14
	500	1	3	4	5	9	12
	600	1	3	3	4	7	10
	700	1	2	3	4	6	9
	750	1	2	3	4	6	9
	800	1	2	3	4	6	8
	900	1	1	2	3	5	7
	1000	1	1	2	3	5	7
	1250	1	1	1	2	3	5
	1500	0	1	1	1	3	4
	1750	0	1	1	1	3	4
	2000	0	1	1	1	2	3
TW	14	111	250	327	415	638	907
	12	85	192	251	319	490	696
	10	63	143	187	238	365	519
	8	35	79	104	132	203	288
RHH[1],	14	74	166	217	276	424	603
RHW[1],
RHW-2[1],
THHW,
THW,
THW-2
RHH[1],	12	59	134	175	222	341	485
RHW[1],	10	46	104	136	173	266	378
RHW-2[1],
THHW,
THW
RHH[1],	8	28	62	81	104	159	227
RHW[1],	6	21	48	62	79	122	173
RHW-2[1],	4	16	36	46	59	91	129
TW,	3	13	30	40	51	78	111
THW,	2	11	26	34	43	66	94
THHW,	1	8	18	24	30	46	66
THW-2	1/0	7	15	20	26	40	56
	2/0	6	13	17	22	34	48
	3/0	5	11	14	18	28	40
	4/0	4	9	12	15	24	34
	250	3	7	10	12	19	27
	300	3	6	8	11	17	24
	350	2	6	7	9	15	21
	400	2	5	7	8	13	19
	500	1	4	5	7	11	16
	600	1	3	4	6	9	13
	700	1	3	4	5	8	11
	750	1	3	4	5	7	11
	800	1	3	3	4	7	10
	900	1	2	3	4	6	9
	1000	1	2	3	4	6	8
	1250	1	1	2	3	4	6
	1500	1	1	1	2	4	6
	1750	1	1	1	2	3	5
	2000	0	1	1	1	3	4
THHN,	14	159	359	468	595	915	1300
THWN,	12	116	262	342	434	667	948
THWN-2	10	73	165	215	274	420	597
	8	42	95	124	158	242	344
	6	30	68	89	114	175	248
	4	19	42	55	70	107	153
	3	16	36	46	59	91	129
	2	13	30	39	50	76	109
	1	10	22	29	37	57	80
	1/0	8	18	24	31	48	68
	2/0	7	15	20	26	40	56
	3/0	5	13	17	21	33	47
	4/0	4	10	14	18	27	39
	250	4	8	11	14	22	31
	300	3	7	10	12	19	27
	350	3	6	8	11	17	24
	400	2	6	7	10	15	21
	500	1	5	6	8	12	18
THHN,	600	1	4	5	6	10	14
THWN,	700	1	3	4	6	9	12
THWN-2	750	1	3	4	5	8	12
	800	1	3	4	5	8	11
	900	1	3	3	4	7	10
	1000	1	2	3	4	6	9
FEP,	14	155	348	454	578	888	1261
FEPB,	12	113	254	332	422	648	920
PFA,	10	81	182	238	302	465	660
PFAH,	8	46	104	136	173	266	378
TFE	6	33	74	97	123	189	269
	4	23	52	68	86	132	188
	3	19	43	56	72	110	157
	2	16	36	46	59	91	129
PFA,	1	11	25	32	41	63	90
PFAH,
TFE
PFA,	1/0	9	20	27	34	53	75
PFAH,	2/0	7	17	22	28	43	62
TFE, Z	3/0	6	14	18	23	36	51
	4/0	5	11	15	19	29	42
Z	14	186	419	547	696	1069	1519
	12	132	297	388	494	759	1078
	10	81	182	238	302	465	660
	8	51	115	150	191	294	417
	6	36	81	105	134	206	293
	4	24	55	72	92	142	201
	3	18	40	53	67	104	147
	2	15	34	44	56	86	122
	1	12	27	36	45	70	99
XHH,	14	111	250	327	415	638	907
XHHW,	12	85	192	251	319	490	696
XHHW-2,	10	63	143	187	238	365	519
ZW	8	35	79	104	132	203	288
	6	26	59	77	98	150	213
	4	19	42	56	71	109	155
	3	16	36	47	60	92	131
	2	13	30	39	50	77	110
XHH,	1	10	22	29	37	58	82
XHHW,	1/0	8	19	25	31	48	69
XHHW-2	2/0	7	16	20	26	40	57
	3/0	6	13	17	22	33	47
	4/0	5	11	14	18	27	39
	250	4	9	11	15	22	32
	300	3	7	10	12	19	28
	350	3	6	9	11	17	24
	400	2	6	8	10	15	22
	500	1	5	6	8	12	18
	600	1	4	5	6	10	14
	700	1	3	4	6	9	12
	750	1	3	4	5	8	12
	800	1	3	4	5	8	11
	900	1	3	3	4	7	10
	1000	1	2	3	4	6	9
	1250	1	1	2	3	5	7
	1500	1	1	1	3	4	6
	1750	1	1	1	2	4	5
	2000	0	1	1	1	3	5
Note 1: This table is for concentric stranded conductors only. For compact stranded conductors, Table C12(A) should be used.
Note 2: Two-hour fire-rated RHH cable has ceramifiable insulation, which has much larger diameters than other RHH wires. Consult manufacturer's conduit fill tables.

[1] Types RHH, RHW, and RHW-2 without outer covering.

Table C12(A). Maximum Number of Compact Conductors in Type EB, PVC Conduit (Based on Table 1, Chapter 9)

Compact Conductors
Type	Conductor Size (AWG/kcmil)	Metric Designator (Trade Size)
		53 (2)	78 (3)	91 (3½)	103 (4)	129 (5)	155 (6)
THW,	8	30	68	89	113	174	247
THW-2,	6	23	52	69	87	134	191
THHW	4	17	39	51	65	100	143
	2	13	29	38	48	74	105
	1	9	20	26	34	52	74
	1/0	8	17	23	29	45	64
	2/0	6	15	19	24	38	54
	3/0	5	12	16	21	32	46
	4/0	4	10	14	17	27	38
	250	3	8	11	14	21	30
	300	3	7	9	12	19	26
	350	3	6	8	11	17	24
	400	2	6	7	10	15	21
	500	1	5	6	8	12	18
	600	1	4	5	6	10	14
	700	1	3	4	6	9	13
	750	1	3	4	5	8	12
	900	1	3	4	5	7	10
	1000	1	2	3	4	7	9
THHN,	8
THWN,	6	34	77	100	128	196	279
THWN-2	4	21	47	62	79	121	172
	2	15	34	44	57	87	124
	1	11	25	33	42	65	93
	1/0	9	22	28	36	56	79
	2/0	8	18	23	30	46	65
	3/0	6	15	20	25	38	55
	4/0	5	12	16	20	32	45
	250	4	10	13	16	25	35
	300	4	8	11	14	22	31
	350	3	7	9	12	19	27
	400	3	6	8	11	17	24
	500	2	5	7	9	14	20
	600	1	4	6	7	11	16
	700	1	4	5	6	10	14
	750	1	4	5	6	9	14
	900	1	3	4	5	7	10
	1000	1	3	3	4	7	10
XHHW,	8	39	88	115	146	225	320
XHHW-2	6	29	65	85	109	167	238
	4	21	47	62	79	121	172
	2	15	34	44	57	87	124
	1	11	25	33	42	65	93
	1/0	9	22	28	36	56	79
	2/0	8	18	24	30	47	67
	3/0	6	15	20	25	38	55
	4/0	5	12	16	21	32	46
	250	4	10	13	17	26	37
	300	4	8	11	14	22	31
	350	3	7	10	12	19	28
	400	3	7	9	11	17	25
	500	2	5	7	9	14	20
	600	1	4	6	7	11	16
	700	1	4	5	6	10	14
	750	1	3	5	6	9	13
	900	1	3	4	5	7	10
	1000	1	3	4	5	7	10
Definition: Compact stranding is the result of a manufacturing process where the standard conductor is compressed to the extent that the interstices (voids between strand wires) are virtually eliminated.