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Standard Sizes High Temp
Reference Tables of Conductors for General Wiring
Class H Class I Class K DLO Conductor’s Nominal Diameters
26 to 20 AWG 18 to 12 AWG 10 to 6 AWG 4 to 2 AWG 1 to 1/0 AWG 2/0 to 4/0 AWG 250 to 350MCM 400 to 750MCM
Size
(AWG/mm2)
Item # L1
(mm/in)
D
(mm/in)
D1
(mm/in)
D2
(mm/in)
Qty. Price
1 AWG
(50.00mm2)
N500012 12.0/.472 10.8/.425 10.2/.402 12.7/.500 50 $7.44
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1 AWG
(50.00mm2)

True 1 AWG
(42.00mm2)
N500018 18.0/.709 10.8/.425 10.2/.402 12.7/.500 50 $7.98
N420018 18.0/.709 9.2/.36 8.6/.34 11.1/.44 50 $7.75
NT500018 18.0/.709 10.8/.425 10.2/.402 12.7/.500 50 $9.20
 
1 AWG
(50.00mm2)

True 1 AWG
(42.00mm2)
N500020 20.0/.787 10.8/.425 10.2/.402 12.7/.500 50 $8.10
N420020 20.0/.787 9.2/.36 8.6/.34 11.1/.44 50 $8.50
NT500020 20.0/.787 10.8/.425 10.2/.402 12.7/.500 50 $9.80
 
1 AWG
(50.00mm2)

True 1 AWG
(42.00mm2)
N500022 22.0/.866 10.8/.425 10.2/.402 12.7/.500 50 $8.78
N420022 22.0/.866 9.2/.36 8.6/.34 11.1/.44 50 $9.25
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1 AWG
(50.00mm2)

True 1 AWG
(42.00mm2)
N500025 25.0/.984 10.8/.425 10.2/.402 12.7/.500 50 $9.32
N420025 25.0/.984 9.2/.36 8.6/.34 11.1/.44 50 $10.50
NT500025 25.0/.984 10.8/.425 10.2/.402 12.7/.500 50 $12.20
 
1 AWG
(50.00mm2)

True 1 AWG
(42.00mm2)
N500030 30.0/1.18 10.8/.425 10.2/.402 12.7/.500 50 $10.13
N420030 30.0/1.18 9.2/.36 8.6/.34 11.1/.44 50 $12.50
NT500030 30.0/1.18 10.8/.425 10.2/.402 12.7/.500 50 $22.80
 
1 AWG
(50.00mm2)

True 1 AWG
(42.00mm2)
N500032 32.0/1.26 10.8/.425 10.2/.402 12.7/.500 50 $10.80
N420032 32.0/1.26 9.2/.36 8.6/.34 11.1/.44 50 $14.00
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1/0 AWG
(56.00mm2)

True 1/0 AWG
(53.00mm2)
N560020 20/.787 12/.472 11.4/.449 14.0/.551 50 13.90
SF530020 20/.787 11.5/.452 10.9/.429 13.0/.511 50 $15.12
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1/0 AWG
(56.00mm2)

True 1/0 AWG
(53.00mm2)
N560025 25.0/.984 12/.472 11.4/.449 14.0/.551 50 14.75
SF530025 25.0/.984 11.5/.452 10.9/.429 13.0/.511 50 $18.09
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1/0 AWG
(56.00mm2)

True 1/0 AWG
(53.00mm2)
N560030 30/1.18 12/.472 11.4/.449 14.0/.551 50 15.50
SF530030 30/1.18 11.5/.452 10.9/.429 13.0/.511 50 $22.41
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