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ABB - Installation Products DTW58 - Transition Washer for Connecting Aluminum/Aluminum, Aluminum/Copper and Aluminum/Copper Lugs and Bus Bar, Outer Diameter 35.6mm (1.4 Inches), Inner Diameter 17.3mm (0.68 Inch), Stud Size 5/8 Inch, Copper Alloy, Tin Plated

ABB Installation Products DTW58 Transition Washer for Connecting Aluminum/Aluminum, Aluminum/Copper and Aluminum/Copper…

UPC: 786210869858


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Overview

The ABB DTW58 Dragon Tooth® Transition Washer is a tin-plated copper alloy component designed for reliable electrical connections between aluminum and copper conductors, as well as aluminum-to-aluminum and copper-to-copper configurations. This washer features a toothed surface that penetrates aluminum and copper oxides, eliminating the need for grinding aluminum surfaces, applying compounds, or using spring-type washers—reducing installed costs and installation time. Key specifications include an outer diameter of 35.6mm (1.4 inches), an inner diameter of 17.3mm (0.68 inches), and compatibility with 5/8-inch studs. The DTW58 accommodates torque ranges from 540 to 730 lbs, ensuring secure and stable connections in high-current applications. Its tin-plated copper alloy construction provides superior electrical conductivity and corrosion resistance, making it suitable for harsh environments. Applications span power distribution, renewable energy, industrial manufacturing, grounding, and bonding systems. The washer meets ANSI C119.4 Class A standards with a temperature rating of 90°C and a maximum voltage of 600V, ensuring long-term performance and safety. The DTW58 is part of ABB Installation Products' Dragon Tooth® series, trusted for precision and reliability in electrical connections.
  • Tin-plated copper alloy construction for superior conductivity and corrosion resistance
  • Toothed surface penetrates oxides, eliminating need for grinding or compounds
  • Outer diameter: 35.6mm (1.4 inches), inner diameter: 17.3mm (0.68 inches)
  • Compatible with 5/8-inch studs, torque range: 540–730 lbs
  • Suitable for aluminum/aluminum, copper/copper, and aluminum/copper connections

Specifications

Finish
Tin Plated
Fits Bolt Sizes
5/8 IN
Inside Diameter
0.68 in
Inside Diameter
17.3 mm
Material
Copper Alloy
Material Quality
Copper Alloy
Outside Diameter
1.4 in
Outside Diameter
35.6 mm
Standard
UL E9809
Standard
UL E9809 / UL E9809
Thickness
0.035 in
Thickness
0.89 mm
Type
Transition Washer
Package Dimensions (L x W x H)
3.5 IN x 3 IN x 3 IN
Package Dimensions (L x W x H)
8.89 cm x 7.62 cm x 7.62 cm
Package Weight (Imperial)
0.060 L
Package Weight (Metric)
0.027 kg
Transition Washer for Connecting Aluminum/Aluminum, Aluminum/Copper and Aluminum/Copper Lugs and Bus Bar, Outer Diameter 31.8mm (1.25 Inches), Inner Diameter 14.2mm (0.56 Inch), Stud Size 1/2 Inch, Copper Alloy, Tin Plated

DTW12

Transition Washer for Connecting Aluminum/Aluminum, Aluminum/Copper and Aluminum/Copper Lugs and Bus Bar, Outer Diameter 31.8mm (1.25 Inches), Inner Diameter 14.2mm (0.56 Inch), Stud Size 1/2 Inch, Copper Alloy, Tin Plated
1/2 Flat Wshr Copper

JSWC76

1/2 Flat Wshr Copper
A thin, flat, circular stamping with a centrally located hole. It is a flat cut washer made of brass with a copper color. The washer has a thickness of 0.034 in, an outside diameter of 0.375 in, and an inside diameter of 0.161 in.

43305

A thin, flat, circular stamping with a centrally located hole. It is a flat cut washer made of brass with a copper color. The washer has a thickness of 0.034 in, an outside diameter of 0.375 in, and an inside diameter of 0.161 in.
Transition Washer for Connecting Aluminum/Aluminum, Aluminum/Copper and Aluminum/Copper Lugs and Bus Bar,Outer Diameter 17.3mm (0.68 Inch), Inner Diameter 6.9mm (0.27 Inch), Stud Size 1/4 Inch, Copper Alloy, Tin Plated

DTW14

Transition Washer for Connecting Aluminum/Aluminum, Aluminum/Copper and Aluminum/Copper Lugs and Bus Bar,Outer Diameter 17.3mm (0.68 Inch), Inner Diameter 6.9mm (0.27 Inch), Stud Size 1/4 Inch, Copper Alloy, Tin Plated
Transition Washer for Connecting Aluminum/Aluminum, Aluminum/Copper and Aluminum/Copper Lugs and Bus Bar, Outer Diameter 25.4mm (1.0 Inch), Inner Diameter 8.6mm (0.34 Inch), Stud Size 5/16 Inch, Copper Alloy, Tin Plated

DTW516

Transition Washer for Connecting Aluminum/Aluminum, Aluminum/Copper and Aluminum/Copper Lugs and Bus Bar, Outer Diameter 25.4mm (1.0 Inch), Inner Diameter 8.6mm (0.34 Inch), Stud Size 5/16 Inch, Copper Alloy, Tin Plated
Washer, Flat, Size 3/8 Inch, Steel

ZE147 3/8-10

Washer, Flat, Size 3/8 Inch, Steel
Washer, Flat, Size 1/4 Inch, Steel

ZE147 1/4-10

Washer, Flat, Size 1/4 Inch, Steel
Washer, Flat, Size 3/4 Inch, Type 316 Stainless Steel

E147-3/4SS6

Washer, Flat, Size 3/4 Inch, Type 316 Stainless Steel

Frequently Asked Questions about ABB - Installation Products

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What are the main product lines offered by Ocal?

Ocal offers a comprehensive range of corrosion-resistant conduit systems, including PVC-coated conduit and fittings, conduit bodies, hazardous location fittings, and strut accessories. Their products are designed to provide superior corrosion protection, featuring a hot-dipped galvanizing process and UL listed Type 4X PVC-coated conduit bodies, ensuring durability in the most demanding environments.