SIS Switchboard Wire

Application

Type SIS VW-1 for use at 600 Volts or less, rated for a maximum continuous operating temperature of 90C in wet and dry locations. For use in Class 1E low voltage applications in operation and interconnection of protective devices where optimum performance is required.

Compliances

  • UL 44 - Thermoset Insulated Wires & Cables
  • ICEA S-95-658/NEMA WC70(formerly ICEA S-66-524 & S-19-81)
  • IEEE 383 (70,000 BTU/hr)
  • ICEA T-29-520 (210,000 BTU/hr)
  • UL 1581 VW-1

Construction

SIS Switchboard Wire
Conductor Stranded tinned annealed copper per ASTM B33; Class B stranding per ASTM B8
Insulation Flame-retardant, heat, moisture and radiation resistant, thermoset Cross-Linked Polyethylene (FRXLPE)
Color Upon request, black is preferable

Parameters

AWG or kcmil Strand Nominal insulation Thickness Nominal Overall Diameter Copper Weight Cable Weight
Cl. B Cl. C Inch mm Inch mm Lbs/kft kg/km Lbs/kft kg/km
18 7 19 0.030 0.76 0.108 2.69 5 8 9 14
16 7 19 0.030 0.76 0.118 2.95 8 12 13 19
14 7 19 0.030 0.76 0.133 3.33 13 19 19 28
12 7 19 0.030 0.76 0.152 3.81 20 30 27 41
10 7 19 0.030 0.76 0.175 4.39 32 48 41 60
8 7 19 0.045 1.14 0.236 5.92 51 76 68 100
6 7 19 0.045 1.14 0.273 6.86 81 121 101 151
4 7 19 0.045 1.14 0.320 8.05 129 192 154 229
2 7 19 0.045 1.14 0.379 9.55 205 305 237 353
1 19 37 0.055 1.40 0.437 11.0 258 384 298 444
1/0 19 37 0.055 1.40 0.476 12.0 326 485 371 552
2/0 19 37 0.055 1.40 0.521 13.2 411 612 462 687
3/0 19 37 0.055 1.40 0.571 14.4 518 771 575 856
4/0 19 37 0.055 1.40 0.627 15.9 653 972 717 1067
250 37 61 0.065 1.65 0.695 17.6 772 1149 852 1268
350 37 61 0.065 1.65 0.798 20.2 1081 1609 1176 1750
500 37 61 0.065 1.65 0.927 23.4 1544 2297 1659 2468
750 61 91 0.080 2.03 1.137 28.8 2316 3446 2480 3691
1000 61 91 0.080 2.03 1.287 32.6 3088 4595 3279 4879