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Black vinyl electrical tape roll three-quarter inch by twenty feet

3M

3M 33SUPER20FT Super 33+ Vinyl Electrical Tape .75 in x 20 ft Black

SKU CH-42J5-YD3JN MPN 33SUPER20FT

Black vinyl electrical tape rated to 600 V and temperatures from 0 to 221 °F, supplied in a 20 ft roll with ten rolls per pack

  • TypeElectrical Tape
  • ColorBlack
  • Operates reliably from 0 °F to 221 °F
  • Rated for 600 V electrical insulation
  • 7 mil vinyl resists abrasion and moisture
  • Rubber adhesive bonds securely to wire and cable
  • 20 ft roll provides ample length for multiple jobs

Professional Electrical Tape

3M Super 33+ vinyl electrical tape is designed for electricians and technicians who need reliable insulation for wire splices and cable repairs. The black tape uses a rubber-based adhesive on a 7 mil vinyl backing to create a durable seal in residential and commercial wiring jobs.

600 Volt Insulation Rating

This tape carries a 600 V voltage rating, which is the key specification that determines whether it suits your circuit. It is rated for general-purpose electrical work up to that limit and should not be used on higher-voltage systems.

Wide Temperature Performance

The tape maintains adhesion and flexibility from 0 degrees F up to 221 degrees F, so it performs in cold outdoor runs and warm equipment cabinets alike. The vinyl backing resists abrasion, moisture and UV exposure during normal use.

Highlights

  • Operates reliably from 0 °F to 221 °F
  • Rated for 600 V electrical insulation
  • 7 mil vinyl resists abrasion and moisture
  • Rubber adhesive bonds securely to wire and cable
  • 20 ft roll provides ample length for multiple jobs

Specifications

TypeElectrical Tape
Brand3M
ColorBlack
Shipping weight2.27 kg
Package size254 × 127 × 25 mm

Questions about this item

How does the 7 mil thickness and 600 V rating perform when wrapping live conductors?

The 7 mil vinyl and rubber adhesive maintain insulation up to 600 V and stay flexible from 0 °F to 221 °F, so the tape seals tightly without cracking in cold or softening in heat.

What does the 600 V rating actually limit in day-to-day electrical work?

It certifies the tape for primary insulation on circuits up to 600 V; beyond that voltage the dielectric strength is not guaranteed.

Will the .75 in by 20 ft roll fit standard electrician pouches and dispensers?

At 3/4 in wide and 20 ft long the roll matches common pouch slots and hand-held dispensers used by electricians.

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