SIS (Switchboard and Switchgear) Wire Features

- Construction

Conductor:

Tinned copper

Solid (18-12 AWG)

Stranded (18 AWG - 4/0 AWG)

XLPE thermoset insulation

Available in multiple colors

600V AC rating

Temperature ratings:

SIS: 90°C

Dual ratings: 90°C to 125°C

- Key Benefits

Resistance properties:

Moisture resistant

Chemical resistant

Oil resistant

Hydraulic fluid resistant

Thermoset characteristics:

Natural fire resistance

Enhanced durability

Excellent stability

Size-specific markings:

14 AWG - 4/0: "SIS"

18-14 AWG: "Suitable for switchboard use"

• Dry location installations:
• Electrical switchgear
• Control panels
• Substations
• Switchboards
• Equipment wiring
• Industrial control systems
• Power distribution panels

• NEC Table 310.104(A)
• CSA SIS/CL1251
• UL certifications:
• UL 3173
• UL 3195
• UL 3196
• UL 3320
• VW-1 flame test (most types)
• Note: For dry locations only