SIS

SIS (Switchboard and Switchgear) wire combines stranded tinned copper conductors with flame-retardant cross-linked polyethylene (XLPE) insulation, engineered specifically for critical electrical distribution applications. This professional-grade 600V-rated wire excels in temperatures up to 90°C (125°C for dual-rated versions) while providing exceptional resistance to moisture, chemicals, and oils. Available in comprehensive size ranges (14 AWG to 4/0 AWG for NEC SIS compliance, 18-14 AWG marked "Suitable for switchboard use"")