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The 3M 7000031526 is a printed wire marker tape refill roll designed for cable and conductor identification in electrical installations. Each roll comes pre-printed with the letter K, providing a consistent, legible label for wiring systems where quick conductor identification is critical. Sold in a box of 10 rolls, this refill format is suited for use with compatible wire marker dispensers commonly found in commercial and industrial electrical work. The rolls support organized, code-compliant wiring practices where clear labeling is required.
This wire marker refill is used in commercial, industrial, and residential electrical applications where conductors, cables, and terminals must be identified at panel boards, junction boxes, pull boxes, and terminal strips. Electricians and low-voltage installers use pre-printed marker rolls to speed up labeling during rough-in and finish work. The letter K designation makes these rolls a targeted addition to a broader wire marking system.
Designed as a refill roll for use with compatible 3M wire marker tape dispensers and systems that accept the SDR-K roll format.
Wire marker tape is applied by qualified electricians or low-voltage technicians during conductor termination or panel dressing. De-energize all circuits and follow applicable NFPA 70 (NEC) lockout/tagout procedures before working in any panel or enclosure. Apply markers to clean, dry conductor insulation or terminal surfaces for proper adhesion. Do not apply over damaged insulation or in environments that exceed the marker material rating.
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