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Roll of light grey arc proofing tape on white core

Scotch

Scotch 77 Arc Proofing Tape 1-1/2in 20ft 30mil 600V Gray/White

SKU CH-DKJ5-4121C

Arc-proofing tape insulates up to 600 V with a 30 mil thickness across a 20 ft continuous roll

  • Color and finishLight Gray
  • Arc proofing rated to 600 V for high-voltage insulation
  • 30 mil thickness provides robust arc-flash protection
  • 20 ft continuous roll covers multiple splicing jobs
  • Non-adhesive design allows clean removal without residue
  • Performs reliably from 50 to 80 °F in field conditions

Arc Proofing Tape for 600 V Applications

This Scotch 77 tape is a non-adhesive insulating wrap rated for 600 V electrical work. It is built for electricians and maintenance crews who need reliable arc proofing on cables and splices. The continuous roll delivers 20 ft of coverage in a single length. Gray and white coloring helps identify the wrap in busy panels.

Thermals and Power Draw in Normal Use

The tape performs between 50 and 80 degrees Fahrenheit, staying flexible across that range. It adds no electrical load and generates no heat or noise during operation. The 30 mil thickness provides consistent dielectric strength without bulk. Proper overlap maintains the rated voltage hold-off.

What the Bundled Format Changes

Supplied as a single continuous roll, it eliminates the need to join shorter strips on long runs. The non-adhesive surface allows clean repositioning during installation without leaving residue. No additional software or accessories are included with this product. Builders needing adhesive-backed tape or higher temperature ratings should select a different product.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 94% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSCOTCH
Color and finishLight Gray

Questions about this item

How do I wrap the 30 mil Scotch 77 tape without adhesive so it stays in place?

Stretch the tape tightly around the cable, overlapping each turn by half the width; the self-fusing layers bond into a solid 600 V insulation sleeve without glue.

When should I replace the arc proofing tape after installation?

Inspect annually for cracks, carbon tracking or loss of elasticity; replace any section that no longer seals tightly or shows surface degradation from fault exposure.

What happens if the tape operates above its 80 degree F maximum performance temperature?

The non-adhesive backing can soften and lose mechanical grip, reducing arc-tracking resistance and risking insulation failure under sustained 600 V stress.

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