4/0 AWG 1/2" 1 Hole Short Flared Barrel Copper Lug, Purple | Techspan® BLU4/0S1FL

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4/0 AWG 1/2" 1 Hole Short Flared Barrel Copper Lug, Purple | Techspan® BLU4/0S1FL
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Comp Lug 4/0 1H 1/2. Short flared barrel copper lug designed for terminating 4/0 AWG conductors to a 1/2 in. stud connection. Manufactured from tin-plated seamless copper tubing with an inspection window for verifying full cable insertion and a flared entry that simplifies installation of fine-stranded flexible conductors. Rated for applications up to 35 kV.
Gerrie Part #: TSPBLU4/0S1FL
 | 
MFR Part #: BLU4/0S1FL
 | 
Mfr: Techspan®
$ / EA
  • Color :Purple
  • Conductor Size :4/0 AWG
  • Manufacturer Name :Techspan Industries
  • Stud Size :1/2"
  • Tongue :One Hole Tongue with Inspection Window
Technical Specifications
Color
Purple
Conductor Size
4/0 AWG
Manufacturer Name
Techspan Industries
Stud Size
1/2"
Tongue
One Hole Tongue with Inspection Window

The BLU4/0S1FL Short Flared Barrel Copper Lug is a one-hole compression connector engineered for terminating 4/0 AWG conductors in commercial, industrial, utility, and heavy-duty electrical applications. Constructed from high-conductivity seamless copper tubing and finished with a tin-plated coating, it provides excellent conductivity while helping resist corrosion in demanding environments.

Designed for use with Class B, C, I, K, H, G, M, and DLO conductors, this lug features a short flared barrel that allows easier insertion of fine-stranded flexible cable. The flared entry helps reduce installation difficulty and minimizes conductor strain during flexing and movement.

Key features:

  • High-conductivity seamless copper construction
  • Tin-plated finish for corrosion resistance
  • Inspection window to confirm full conductor insertion
  • Short flared barrel design for flexible cable applications
  • Color-coded purple barrel with die index identification
  • One-hole tongue with 1/2 in. stud hole
  • Suitable for voltages up to 35 kV
  • Compatible with Penn-Union, Burndy, T&B, Huskie, Greenlee, and Versa-Crimp style tooling

The connector is UL Listed, CSA Certified, and RoHS Compliant, helping support compliance requirements across a wide range of electrical installations. Its compact barrel design and flexible conductor compatibility make it a practical choice for panel connections, equipment terminations, power distribution systems, and DLO cable applications where secure, high-performance electrical connections are required.

Product Specifications

Specification

Details

Product Type

Standard Flared Barrel Copper Lug

Manufacturer Part Number

BLU4/0S1FL

Conductor Size

4/0 AWG

Stud Hole Size

1/2 in.

Tongue Configuration

One-hole tongue

Material

High-conductivity seamless copper tubing

Finish

Tin-plated

Barrel Style

Short flared barrel

Inspection Window

Yes

Voltage Rating

Up to 35 kV

Suitable Conductor Classes

Class B, C, I, K, H, G, M, and DLO conductors

Diesel Locomotive Cable Range

3/0 AWG

Stranding

450/24

Color Code

Purple

Burndy Die Index Number

15

Penn-Union Die Catalog Number

T-15

Compatible Dieless Mechanical Tool

TDM-250XF

Barrel Length (B)

1 in.

Overall Length (L)

2.5 in.

Tongue Length (C)

1.09 in.

Tongue Width (W)

1 in.

Tongue Thickness (T)

0.14 in.

Wire Strip Length

1-1/8 in.

Certification

UL Listed

Certification

CSA Certified

Compliance

RoHS Compliant

Tooling Compatibility

Penn-Union, Burndy, T&B, Huskie, Greenlee, and Versa-Crimp style tooling