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SIS Wire

SIS wire is for use in dry locations for wiring electrical switchgear, control panels, substations, and equipment only. The NEC SIS category covers wires between 14 AWG and 4/0 AWG, and the maximum temperature that's allowed is 90°C. The lower size limit for SIS wires is 14 AWG, so wires between 18 AWG and 14 AWG have this marking: "Suitable for switchboard use."

30 items

Approx LBS/MFT10.00, 11
AWG Size18
Cond. MaterialTinned Copper
Conductor Stranding16/30
Copper LBS/MFT5
CSA TypeCSA C22.2 No. 38 FT-1 & FT-2
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp90C
Requires Quote per FT 
Approx LBS/MFT256.00
AWG Size18
Cond. MaterialTinned Copper
Conductor StrandingSolid
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp90C
No. of Cond.1
No. of Strands1
Requires Quote 
Approx LBS/MFT0.00
AWG Size18
Cond. MaterialTinned Copper
Conductor Stranding7/26
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp90C
No. of Cond.1
No. of Strands7
Requires Quote per FT 
Approx LBS/MFT0.00
AWG Size16
Cond. MaterialTinned Copper
Conductor StrandingSolid
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp90C
No. of Cond.1
No. of Strands1
Requires Quote per FT 
Approx LBS/MFT13, 13.00
AWG Size16
Cond. MaterialTinned Copper
Conductor Stranding26/30
Copper LBS/MFT8.0
CSA TypeCSA C22.2 No. 38 FT-1 & FT-2
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp90C
Starting at $0.26 per FT 
Approx LBS/MFT0.00
AWG Size16
Cond. MaterialTinned Copper
Conductor Stranding7/24
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp90C
No. of Cond.1
No. of Strands7
Requires Quote per FT 
Approx LBS/MFT20, 20.00
AWG Size14
Cond. MaterialTinned Copper
Conductor Stranding41/30
Copper LBS/MFT12.5
CSA TypeCSA C22.2 No. 38 FT-1 & FT-2, SIS/CL1251
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp90C
Requires Quote per FT 
Approx LBS/MFT0.00
AWG Size14
Cond. MaterialTinned Copper
Conductor StrandingSolid
CSA TypeSIS/CL1251
Insul. MaterialCross-Linked Polyethylene (XLPE)
Max. Temp90C
No. of Cond.1
Requires Quote per FT