3M 77 Black-3x20FT Fire Retardant Electric Arc Proofing Tape
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Manufacturer 3M
Mfg Catalog # 77Black-3x20FT
NorthEast Part # 934776


Scotch® Tape 77 is a 30-mil thick, premium-grade, flame-retardant, electric arc proofing tape. This tape is 600V-rated and is suitable to protect most types of electrical cables when exposed to potential failures in an adjacent cable. It is designed with a flexible unsupported elastomer, which makes it easy-to-apply and easy-to-remove for cable inspection.

Scotch® Flame-Retardant Tape 77 has an intumescent elastomer backing that generates a thick, insulating charred buildup when exposed to high temperatures. The tape has a specially formulated adhesive that expands in fire to form a thick, char buildup between the flame and the cable. This firewall acts as a heat shield and flame barrier to protect the nearby cables and accessories. The splicing, insulating tape offers fault-arc protection to cable accessories and adjacent wrapped cables. UL Listed and RoHS 2011/65/EU Compliant.

  • Intumescent elastomer backing
  • Tape measures 3 in x 20 ft x 30 mil
  • For protecting most types of electrical cables when exposed to potential failures in an adjacent cable
  • Conformability offers virtually wrinkle-free wrapping with minimal effort
  • UL Listed and RoHS 2011/65/EU Compliant
  • 1 roll/carton, 10 rolls/case


  • 3M ID: 80611605983
  • Adhesive Material: Non-Adhesive
  • Applications: Electrical Maintenance
  • Backing Material: Intumescent Elastomer
  • Brand: Scotch®
  • Breaking Strength: 36 lb/in
  • Color: Black
  • Elongation: 150 %
  • Family: Scotch® Fire-Retardant and Electric Arc Proofing Tape 77/77W
  • Length: 20 Linear Foot
  • Length (Metric): 6 m
  • Material: Intumescent Elastomer
  • Product Markets: Electrical Construction, Electrical MRO, Power Distribution
  • Product Type: Arc Protection Tape
  • RoHS 2011/65/EU Compliant: Undetermined
  • RoHS EU Comments: Contact 3M for information
  • Rolls per Carton: 1
  • Rolls per Case: 10
  • Self-Extinguishing: Yes
  • Self Sticking/Amalgamating: No
  • Shelf Life: 5 Year
  • Specifications: Consolidated Edison Co. Test EO-5343-14
  • Tape Grade: Premium
  • Tape Type: Insulating and Splicing
  • Tape Width: 76 mm
  • Tape Width (metric): 76 mm
  • Thickness: 30 mil
  • Thickness (Metric): 0.76 mm
  • Trademark: 3M™
  • UV Resistant: Yes
  • Width: 3 Inch
  • Width (Metric): 76 mm

Legal Disclaimer

  • Manufacturing Origin: USA
  • The designation that a product is Manufactured in the USA means the product undergoes substantial transformation in one of our U.S. Manufacturing plants. Some products contain imported components.
  • Note: 3M products offered on a government contract that require country of origin representation must be certified by 3M Trade Compliance. Contact customer service at 800-245-3573 to request a certificate.


UPC 05112860333
Product Description Fire Retardant Electric Arc Proofing Tape 3" x 20' (USA)
GTiN 00051128603338
Family Brand Name 3M
Length 20 LF
Width 3 in
Color Black
Thickness 30 mil
Material Intumescent Elastomer
Product Type Arc Protection Tape

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