The use of lightning protection conductors has been broken into two classes by Underwriters Laboratories and the National Fire Protection Association. Class 1 materials are used for structures that are less than 75 feet in height.  Class 2 materials are used for structures that are 75 feet or more in height..   <See Requirements>

UL Listed

27E

Class I copper lightning protection conductor. Consists of 7strands of .094" solid copper wire, weighs 204 pounds per thousand feet, and has a conductive area of 66,370 circular mils

UL Listed

10AE

Class I aluminum lightning protection conductor. Consists of  19 strands of .0745 solid aluminum wire, weighs 99 pounds per thousand feet, and has a conductive area of 105,530 circular mils

UL Listed

29E

Class II copper lightning protection conductor. Consists of 37 strands of .06" solid copper wire, weighs 411 pounds per thousand feet, and has a conductive area of 133,100 circular mils

UL Listed

30

Class II rope lay copper lightning protection conductor. Consists of 30 strands of .068" solid copper wire, weighs 420 pounds per thousand feet, and has a conductive area of 134,600 circular mils

UL Listed

19AE

Class II aluminum lightning protection conductor. Consists of  19 strands of .1055 solid aluminum wire, weighs 204 pounds per thousand feet and, has a conductive area of 1211,000 circular mils

UL Listed

UL Listed

4

Concentric strand copper secondary bonding wire
Weight: 130 lbs/1,000 ft.
Area of Conductivity: 43,000 circular mils

6

Solid soft copper secondary bonding wire
Weight:   80 lbs/1,000 ft.
Area of Conductivity:  28,000 circular mils

UL Listed

UL Listed

4A

Concentric strand conductor consists of 10 strands of 14 gauge aluminum wire.
Weight:  42 lbs /1,000 ft.
Area of Conductivity:  41,000 circular mils

4AX

Solid soft aluminum conductor
Weight:  40 lbs/1,000 ft.
Area of Conductivity:  42,000 circular mills

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