ABB - Installation Products HLC3974AP9 - Hot line clamp, Aluminum, Tin Plated, Contax filled, Front Tap, 11/16 Nut, Conductor Range Main 400 kcmil Stranded - 6 Solid, 185-16 sqmm, TAP 4/0 Stranded - 6 SOL, 95-16 sq mm Main 397.5 - 6 ACSR, TAP 3/0 - 6 ACSR
ABB - Installation Products

HLC3974AP9

UPC: 783786600328


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Overview

ABB Installation Products HLC3974AP9 is a hot line clamp designed for reliable electrical connections in overhead distribution systems. This aluminum clamp features a tin-plated finish for corrosion resistance and is filled with Conax compound to prevent moisture ingress, ensuring long-term performance in outdoor environments. The front tap design allows for easy installation on energized conductors without service interruption. The clamp accommodates a main conductor range of 400 kcmil stranded to 6 AWG solid (185–16 sqmm) and a tap conductor range of 4/0 AWG stranded to 6 AWG solid (95–16 sqmm). It is compatible with 397.5–6 ACSR main conductors and 3/0–6 ACSR tap conductors, making it suitable for medium-voltage distribution applications. The 11/16-inch nut ensures secure mechanical and electrical connections. This clamp is ideal for utility companies, contractors, and industrial facilities requiring durable, low-maintenance connections in overhead power lines. Its compact design and high conductivity aluminum construction minimize voltage drop and heat generation, improving system efficiency. The Conax filling provides additional protection against environmental contaminants, reducing the risk of oxidation and corrosion over time.
  • Aluminum construction with tin-plated finish for corrosion resistance
  • Conax compound filling prevents moisture ingress and oxidation
  • Front tap design enables installation on energized conductors
  • Accommodates main conductors: 400 kcmil stranded to 6 AWG solid (185–16 sqmm)
  • Accommodates tap conductors: 4/0 AWG stranded to 6 AWG solid (95–16 sqmm)
  • Compatible with 397.5–6 ACSR main and 3/0–6 ACSR tap conductors
  • 11/16-inch nut for secure mechanical and electrical connections
  • Ideal for overhead distribution systems and hot-line maintenance

Specifications

Connection Type
Front Tap
Material
Aluminum
Mounting Type
11/16 Nut
Series
HLC
Size
Main 400 kcmil Stranded - 6 Solid, 185-16 sqmm, TAP 4/0 Stranded - 6 SOL, 95-16 sq mm, Main 397.5 - 6 ACSR, TAP 3/0 - 6 ACSR
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)
0.6800 L
Package Weight (Metric)
0.3080 kg
Aluminum Compression H-Tap: Wire Range Main: 2/0-2, Branch 8-14, Length 3/4 Inch, Die Code O, Die Color Code Green

63118

Aluminum Compression H-Tap: Wire Range Main: 2/0-2, Branch 8-14, Length 3/4 Inch, Die Code O, Die Color Code Green
Hot Line Clamp, Aluminum, Tin-Plated, Contax Filled, Front Tap - 9/16 nut. Conductor Ranges Main 400 KCMIL, Stranded - 6, Solid 185 - 16 sq mm, TAP 4/0 Stranded - 6 Solid 95 - 16 sq mm. Main 397-5 - 6 ACSR, TAP 3/0 - 6 ACSR

HLC3974AP9-1

Hot Line Clamp, Aluminum, Tin-Plated, Contax Filled, Front Tap - 9/16 nut. Conductor Ranges Main 400 KCMIL, Stranded - 6, Solid 185 - 16 sq mm, TAP 4/0 Stranded - 6 Solid 95 - 16 sq mm. Main 397-5 - 6 ACSR, TAP 3/0 - 6 ACSR
Bronze Type HLC - Hot Line Clamps for wire range Main AWG 400 - 6 Solid. Plated

HLC3974P

Bronze Type HLC - Hot Line Clamps for wire range Main AWG 400 - 6 Solid. Plated
Hot Line Clamp, Bronze, Tin-Plated, Contax Filled, Front Tap - 9/16 nut. Conductor Ranges Main 400 KCMIL, Stranded - 6, Solid 185 - 16 sq mm, TAP 4/0 Stranded - 6 Solid 95 - 16 sq mm. TAP 3/0 - 6 ACSR

HLC3974P-1

Hot Line Clamp, Bronze, Tin-Plated, Contax Filled, Front Tap - 9/16 nut. Conductor Ranges Main 400 KCMIL, Stranded - 6, Solid 185 - 16 sq mm, TAP 4/0 Stranded - 6 Solid 95 - 16 sq mm. TAP 3/0 - 6 ACSR
Hot Line Clamp, Aluminum, Tin-Plated, Contax Filled, Front Tap - 3/4 nut. Conductor Ranges Main 400 KCMIL, Stranded - 6, Solid 185 - 16 sq mm, TAP 4/0 Stranded - 6 Solid 95 - 16 sq mm. Main 397-5 - 6 ACSR, TAP 3/0 - 6 ACSR

HLC3974AP9-2

Hot Line Clamp, Aluminum, Tin-Plated, Contax Filled, Front Tap - 3/4 nut. Conductor Ranges Main 400 KCMIL, Stranded - 6, Solid 185 - 16 sq mm, TAP 4/0 Stranded - 6 Solid 95 - 16 sq mm. Main 397-5 - 6 ACSR, TAP 3/0 - 6 ACSR
Aluminum Multi-Tap Encapsulated Cable Blocks - One-Way Configuration, Wire Range 500 kcmil-6 Str, Screw Size 5/16 Hex, Length 2.71 Inches, Width 2.38 Inches, Height 2.75 Inches, Outlets 2, Clear Insulation

CSB 500-2 S

Aluminum Multi-Tap Encapsulated Cable Blocks - One-Way Configuration, Wire Range 500 kcmil-6 Str, Screw Size 5/16 Hex, Length 2.71 Inches, Width 2.38 Inches, Height 2.75 Inches, Outlets 2, Clear Insulation
Aluminum Multi-Tap Encapsulated Cable Blocks, One-Way Configuration, Wire Range 500 kcmil-6 Str, Hex Size 5/16 Inch, Length 3.99 Inches, Width 2.38 Inches, Height 2.75 Inches, Outlets 3, Clear Insulation

CSB 500-3 S

Aluminum Multi-Tap Encapsulated Cable Blocks, One-Way Configuration, Wire Range 500 kcmil-6 Str, Hex Size 5/16 Inch, Length 3.99 Inches, Width 2.38 Inches, Height 2.75 Inches, Outlets 3, Clear Insulation
Aluminum Multi-Tap Encapsulated Cable Blocks - One-Way Configuration, Wire Range 350 kcmil-10 Str, Screw Size 5/16 Hex, Length 2.22 Inches, Width 2.37 Inches, Height 2.50 Inches, Outlets 2, Clear Insulation

CSB 350-2 S

Aluminum Multi-Tap Encapsulated Cable Blocks - One-Way Configuration, Wire Range 350 kcmil-10 Str, Screw Size 5/16 Hex, Length 2.22 Inches, Width 2.37 Inches, Height 2.50 Inches, Outlets 2, Clear Insulation

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