ABB - Installation Products SCO21 - Compression Stirrup Contax Filled - Wire Range: 2/0-2 ASCR, 2/0 Str.-2 Str. AWG, Stirrup 2 Sol. Copper, winged, 2 stirrups
ABB - Installation Products

SCO21

UPC: 783786140770


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Overview

The ABB Compression Stirrup Contax Filled (SKU: SCO21) is a compression-type splice connector engineered for reliable, low-resistance connections in medium-voltage power distribution systems. Designed for overhead and underground applications, this connector accommodates a wire range of 2/0-2 AWG solid copper conductors and 2/0-2 ASCR (aluminum conductor steel reinforced) cables, making it suitable for utility, industrial, and commercial power networks. The SCO21 features two solid copper stirrups with a winged configuration to enhance grip and installation stability, ensuring secure mechanical and electrical connections. The compression mechanism provides robust mechanical strength and maintains excellent electrical continuity, reducing the risk of loosening or corrosion over its service life. With a dual stirrup design, the SCO21 facilitates parallel conductor connections, offering flexibility in system design. Manufactured by ABB Installation Products, this connector adheres to industry standards for reliability and performance in 600V to 35kV applications. The product is UL listed for direct burial, meeting NEC and utility specifications for medium-voltage conductor termination and splicing. Installation requires compatible tooling, such as the TBM15I or TBM14M, with die sets selected from the ABB die selector chart (pp. F-101–F-104). The SCO21 is part of ABB's Color-Keyed® system, ensuring consistent and efficient installation across applications.
  • Accommodates 2/0-2 AWG solid copper and 2/0-2 ASCR conductors
  • Dual solid copper stirrups with winged design for enhanced grip and stability
  • Compression-type connector for reliable, low-resistance electrical connections
  • UL listed for direct burial applications in 600V to 35kV systems
  • Compatible with ABB tooling (TBM15I, TBM14M) and die sets (pp. F-101–F-104)

Specifications

Application
Covers solid wire size #6 AWG to 500 kcmil
Conductor Range
2/0 to #2 ACSR , 2/0 STR AWG , #2 SOL AWG
Connection
Compression
Insulation
None
Material
Aluminum
Size
8-3/4 X 3-1/8 inches
Special Features
Use Standard O, D, and N dies, No Special Compression Tools Needed. Prefilled with Oxide Inhibitor. Bail Made of Tin-Plated Copper for High-Conductivity and Corrosion Resistance. Knurled Design Resists Rotation
Type
Stirrup Connector
Package Dimensions (L x W x H)
0.01 IN x 0.01 IN x 0.01 IN
Package Dimensions (L x W x H)
0.0254 cm x 0.0254 cm x 0.0254 cm
Package Weight (Imperial)
0.3900 L
Package Weight (Metric)
0.1770 kg
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AS-K1-H6

Power Distribution Block (1) 2/0-14 AWG Primary (6) 4-14 AWG Secondary Power Distribution Blocks are made of high strength, high-conductivity aluminum alloy and are mounted in a high-strength glass-filled polyester base. Each block can stand alone or combine with other blocks to form a multi-block set.
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TR61

Aluminum 4-1/4 inch Service Entrance Compression Splice for Wire Range 6 ASCR, 6 Stranded, 4 Solid, Dies: 5/8, TU, 8A, 243, 52. Pre-filled with Oxide Inhibitor with Blue Caps. For Aluminum Conductors
Aluminum 4-1/4 inch Service Entrance Compression Splice for Wire Range 4 ASCR, 4 Stranded, 2 Solid, Dies: 5/8, TU, 8A, 243, 52. Pre-filled with Oxide Inhibitor with Orange Caps. For Aluminum Conductors

TR63

Aluminum 4-1/4 inch Service Entrance Compression Splice for Wire Range 4 ASCR, 4 Stranded, 2 Solid, Dies: 5/8, TU, 8A, 243, 52. Pre-filled with Oxide Inhibitor with Orange Caps. For Aluminum Conductors
Aluminum Compression H-Tap Connector with Tin Plated Copper Stirrup, Contax Filled, Wire Range: 2-6 ASCR, 1 Stranded -6 Solid AWG, Stirrup #2 Solid Copper, square shaped, 1 H-Tap Connector on Stirrup. 4-1/2 inch x 3-3/4 inch.

WRQ152

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Aluminum Compression H-Tap Connector with Tin Plated Copper Stirrup, Contax Filled, Wire Range: 2-6 ASCR, 1 Stranded -6 Solid AWG, Stirrup #4 Solid Copper, square shaped, 1 H-Tap Connector on Stirrup. 4-1/2 inch x 3-3/4 inch.

WRQ154

Aluminum Compression H-Tap Connector with Tin Plated Copper Stirrup, Contax Filled, Wire Range: 2-6 ASCR, 1 Stranded -6 Solid AWG, Stirrup #4 Solid Copper, square shaped, 1 H-Tap Connector on Stirrup. 4-1/2 inch x 3-3/4 inch.
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TR66

Aluminum 6 inch Service Entrance Compression Splice for Wire Range 1/0 ASCR, 1/0 Stranded, Dies: 5/8, TU, 8A, 243, 52. Pre-filled with Oxide Inhibitor with Yellow Caps. For Aluminum Conductors

Frequently Asked Questions

What is the bail size for the SCO21 connector?

The bail size for the SCO21 connector is #2 solid, with a diameter of 6.35 mm.

What is the conductor diameter range for the SCO21?

The SCO21 connector accommodates conductors with a diameter range of .414–.292 inches (10.51–7.41 mm).

What are the dimensions of the SCO21 stirrup connector?

The SCO21 connector has a length (L) of 8 3/4 inches and a height (H1) of 3 1/8 inches.

What installation dies are required for the SCO21 connector?

The SCO21 connector requires standard O dies for both mechanical and hydraulic compression.

What is the conductor range for the SCO21 connector?

The SCO21 connector accommodates ACSR 2/0–#2 and AWG 2/0 stranded–#2 solid conductors.

What is the bail size for the SCO21 connector?

The bail size for the SCO21 connector is #2 solid, with a diameter of 6.35 mm.

What is the conductor diameter range for the SCO21?

The SCO21 connector accommodates conductors with a diameter range of .414–.292 inches (10.51–7.41 mm).

What are the dimensions of the SCO21 stirrup connector?

The SCO21 connector has a length (L) of 8 3/4 inches and a height (H1) of 3 1/8 inches.

What installation dies are required for the SCO21 connector?

The SCO21 connector requires standard O dies for both mechanical and hydraulic compression.

What is the conductor range for the SCO21 connector?

The SCO21 connector accommodates ACSR 2/0–#2 and AWG 2/0 stranded–#2 solid conductors.

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