ABB - Installation Products 4HPW - Type HPW Plated Split-Bolt Connector with Spacer and Washer made of Copper Alloy for Use on Copper, Aluminum, ACSR Conductors. Conductor Range for Equal Main and Tap 4 Sol.-12 Sol.
ABB - Installation Products

4HPW

UPC: 783786200344


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Overview

The ABB Type HPW Plated Split-Bolt Connector (SKU: 4HPW) is a high-strength copper alloy mechanical connector designed for reliable electrical connections on copper, aluminum, and ACSR conductors. This split-bolt connector features an integrated tin-plated copper spacer and washer to ensure proper conductor alignment, secure clamping, and wide separation between dissimilar metals—critical for preventing galvanic corrosion in mixed-material applications. The 4HPW accommodates equal main and tap conductor sizes ranging from 4 AWG to 12 AWG, making it ideal for branch circuit applications, service entrances, and distribution panels in residential, commercial, and industrial wiring systems. The contoured spacer and bell-mouth washer distribute clamping pressure evenly across the conductor, reducing the risk of damage while maintaining long-term conductivity. For aluminum conductor installations, Blackburn Contax® paste is recommended to enhance corrosion resistance and ensure optimal performance. Constructed from high-strength copper alloy with a tin-plated finish, the 4HPW provides excellent conductivity and durability. The split-bolt design allows for tool-free installation and easy re-entry for maintenance or modifications without requiring conductor removal. With dimensions of 17/32" (A) x 0.235" (B) x 23/32" (C) x 1 9/32" (D), this compact connector fits standard enclosures and panels while meeting the demands of tight installation spaces. The connector is engineered for use in environments where secure, long-lasting connections are essential, offering a cost-effective solution for professionals prioritizing reliability and performance.
  • Copper alloy construction with tin-plated finish for corrosion resistance and conductivity
  • Integrated spacer and washer for proper conductor alignment and pressure distribution
  • Accommodates 4-12 AWG copper, aluminum, and ACSR conductors (equal main and tap sizes)
  • Contoured design prevents damage to conductors while ensuring secure clamping
  • Tool-free installation with easy re-entry for maintenance or modifications

Specifications

Application
Splicing, tapping or terminating conductors in power and grounding electrical connection
Connection Type
Split-Bolt
Finish
Tinned
Material
Copper Alloy
Series
HPW
Size
4-12 AWG
Special Features
Bolt and pressure bar of copper alloy, completely tin plated for corrosion resistance. Spacer and washer of tin plated electrolytic copper
Standard
UL E9809
Type
Split-Bolt
Package Dimensions (L x W x H)
6.75 IN x 5.25 IN x 3.63 IN
Package Dimensions (L x W x H)
17.145 cm x 13.335 cm x 9.2202 cm
Package Weight (Imperial)
0.1000 L
Package Weight (Metric)
0.0450 kg
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Frequently Asked Questions

What conductor sizes does the 4HPW support?

The 4HPW accommodates equal main and tap conductor sizes ranging from 4 AWG to 12 AWG for copper, aluminum, and ACSR conductors.

What are the dimensions of the 4HPW connector?

The 4HPW has dimensions of 17/32" (A) x 0.235" (B) x 23/32" (C) x 1 9/32" (D).

What materials are used in the 4HPW connector?

The 4HPW features a high-strength copper alloy bolt and pressure bar with a tin-plated finish. The spacer and washer are made of electrolytic copper (tin-plated).

Does the 4HPW require special tools for installation?

No, the 4HPW can be installed using standard wrenches. The split-bolt design allows for tool-free installation and easy re-entry.

Is the 4HPW suitable for aluminum conductors?

Yes, the 4HPW is designed for use with aluminum conductors. Blackburn Contax® paste is recommended for optimal performance and corrosion resistance.

What is the maximum tap size for the 4HPW?

The 4HPW supports a minimum tap size of 12 AWG when paired with a maximum main conductor size of 6 AWG.

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