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: 1/0(1)
10(3)
12(4)
14(4)
16(3)
18(3)
2(2)
2/0(1)
3/0(1)
4(2)
: 0.00(9)
10.00(1)
107(1)
11(1)
13(1)
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163(1)
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20(3)
: CSA C22.2 No. 38 FT-1 & FT-2(13)
SIS(1)
SIS/CL1251(21)
SIS/CL1251/VW-1(1)
: Tinned Copper(29)
: 105/30(1)
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: 12.5(2)
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: Cross-Linked Polyethylene (XLPE)(29)
: 90C(29)
: 1(29)
: 1(5)
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: VW-1 Rated, XHHW-2 Rated(11)
: 0.0223(1)
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0.0486(1)
0.0612(1)
0.0745(1)
0.0837(1)
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0.0974(1)
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0.7720(1)
: 3320/3173(6)
SIS(8)
SIS/3173(11)
SIS/3195(1)
SIS/3196(3)
UL 3173(13)
: 600(13)

SIS Wire

SIS wire is designed for use in dry locations to wire electrical switchgear, control panels, substations, and related equipment. This type of wire features cross-linked polyethylene (XLPE) insulation and stranded tinned copper conductors for flexibility and long-term durability.

Per NEC specifications, SIS wire is available in sizes from 14 AWG up to 4/0 AWG, with a maximum temperature rating of 90°C. Wires between 18 AWG and 14 AWG are typically marked as “Suitable for switchboard use.”

Browse our inventory of SIS wire in multiple sizes and colors—available online and ready to ship today.