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ABB - Installation Products DTW38 - Transition Washer for Connecting Aluminum/Aluminum, Aluminum/Copper and Aluminum/Copper Lugs and Bus Bar, Outer Diameter 25.4mm (1.0 Inch), Inner Diameter 10.9mm (0.43 Inch), Stud Size 3/8 Inch, Copper Alloy, Tin Plated

ABB Installation Products DTW38 Transition Washer for Connecting Aluminum/Aluminum, Aluminum/Copper and Aluminum/Copper…

UPC: 786210869582


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Installation InstructionsSpecification SheetManufacturer Product Website

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Overview

The ABB DTW38 Transition Washer, manufactured by ABB Installation Products, is a critical component engineered for reliable electrical connections between dissimilar conductor materials. This tin-plated copper alloy washer is specifically designed to facilitate seamless transitions when connecting aluminum lugs to copper lugs, copper bus bars, or aluminum bus bars, and vice-versa. Its precise dimensions, featuring an outer diameter of 25.4mm (1.0 inch) and an inner diameter of 10.9mm (0.43 inch), ensure a secure and robust fit for 3/8-inch studs, a common size in industrial electrical installations. The primary function of the DTW38 washer is to mitigate galvanic corrosion, a significant concern when joining aluminum and copper. By providing a barrier and ensuring proper contact, it maintains electrical integrity and extends the lifespan of the connection. The copper alloy construction offers excellent electrical conductivity, while the tin plating enhances its durability, corrosion resistance, and ease of installation, particularly in demanding industrial environments. This washer is an essential part of ensuring the safety and efficiency of electrical systems, preventing potential failures due to material incompatibility. While the provided catalog excerpt focuses on other ABB and NSi Industries products like SBCT lugs, ML connectors, and TS series bus bar connectors, the DTW38 washer is designed to complement these and similar connection solutions. Its application is broad, spanning various industrial sectors including power distribution, manufacturing, and infrastructure projects where both aluminum and copper conductors are utilized. The DTW38 is a testament to ABB's commitment to providing high-quality, precision-engineered installation products that meet stringent industry standards for performance and reliability. For applications requiring robust and corrosion-resistant connections between aluminum and copper components, the ABB DTW38 Transition Washer is an indispensable choice, ensuring long-term operational stability and safety.
  • Facilitates secure connections between aluminum and copper lugs/bus bars.
  • Constructed from durable, tin-plated copper alloy for corrosion resistance.
  • Designed for 3/8-inch stud sizes, ensuring broad compatibility.
  • Outer Diameter: 25.4mm (1.0 Inch), Inner Diameter: 10.9mm (0.43 Inch).
  • Mitigates galvanic corrosion for enhanced electrical system reliability.

Specifications

Color
Silver
Connection Type
Transition Washer for Aluminum/Aluminum, Aluminum/Copper, and Aluminum/Copper Lugs and Bus Bar
Finish
Tin Plated
Fits Bolt Sizes
3/8 IN
Inside Diameter
0.27 in
Inside Diameter
6.86 mm
Material
Copper Alloy
Material
Copper Alloy, Tin Plated
Material Quality
Copper Alloy
Outside Diameter
1 in
Outside Diameter
25.4 mm
Series
DTW38
Size
Outer Diameter: 25.4mm (1.0 Inch), Inner Diameter: 10.9mm (0.43 Inch), Stud Size: 3/8 Inch
Size
OD 25.4mm (1.0 Inch), ID 10.9mm (0.43 Inch), Stud Size 3/8 Inch
Special Features
Teeth on the transition washers penetrate aluminum and copper oxides, enabling copper to aluminum connections to be made in a bolted joint without the use of inhibiting compounds
Standard
UL E9809 / UL E9809
Standard
UL E9809
Thickness
0.035 in
Thickness
0.89 mm
Type
Transition Washer
Package Dimensions (L x W x H)
3.3 IN x 2.8 IN x 2.3 IN
Package Dimensions (L x W x H)
8.382 cm x 7.112 cm x 5.842 cm
Package Weight (Imperial)
0.010 L
Package Weight (Metric)
0.005 kg
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
3/8" Flat SAE Washer USA Made Zinc

JSW75D

3/8" Flat SAE Washer USA Made Zinc
These are #6 SAE flat washers made of steel with a zinc plated finish. They have a thickness of 0.047 in, an outside diameter of 0.375 in, and an inside diameter of 0.156 in. The washers fit #6 bolt sizes and are silver in color.

40305SAEJ

These are #6 SAE flat washers made of steel with a zinc plated finish. They have a thickness of 0.047 in, an outside diameter of 0.375 in, and an inside diameter of 0.156 in. The washers fit #6 bolt sizes and are silver in color.
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

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
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
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

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