CTL2.5-4 2.5mm Cable 4mm Stud Tinned Copper Tube Crimp Lugs

Description

2.5mm Cable. 4mm Stud. Tinned Copper. Compression Crimp Lug. Sold Individually.

The CTL2.5-4 is a 2.5mm tinned copper tube compression crimp lug with a 4mm stud hole — used to terminate a 2.5mm² conductor to a bolted connection point such as a terminal block, earth bar, busbar, or equipment stud. Annealed copper barrel with tin electroplated finish. Sold individually.

• CTL2.5-4 — 2.5mm Cable, 4mm Stud Tinned Copper Tube Crimp Lug
• Suits 2.5mm² conductor — 7/0.67 stranding
• 4mm stud hole — suits M4 bolts and studs
• Annealed copper barrel — tin electroplated finish for corrosion resistance
• Compression crimp barrel — single crimp
• For terminating conductor to terminal block, earth bar, busbar, or bolted connection
• Sold individually

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Where the CTL2.5-4 Crimp Lug Is Used

A compression crimp lug terminates a single conductor end to a bolted connection point — the conductor is inserted into the barrel and a compression crimp tool closes the barrel around the conductor, making a permanent, mechanically secure, low-resistance termination. The tongue of the lug is then bolted to the connection point — a terminal block, earth bar, busbar, equipment stud, or similar — using an M4 bolt through the 4mm stud hole.

The CTL2.5-4 is sized for 2.5mm² conductor — the standard cable size used for power circuits in Australian residential and commercial wiring including ring mains, power points, and general purpose outlets. The 4mm stud hole suits M4 hardware, commonly used on smaller terminal blocks, DIN rail terminal connectors, and light duty equipment terminals. The tinned copper construction combines the excellent conductivity of annealed copper with a tin electroplated surface that resists oxidation and maintains a clean, low-resistance contact at the bolted joint over the service life of the installation.

Crimp lugs in this range are available across a wide range of cable sizes and stud hole combinations — covering the full range of conductor sizes and connection hardware used in Australian electrical installations.

Q: What is the difference between a crimp lug and a crimp link?
A: A crimp lug (CTL2.5-4) terminates a single conductor to a bolted connection point — it has one barrel end for the conductor and one tongue with a stud hole for the bolt. A crimp link joins two conductor ends together — it has an open barrel at both ends. Use a crimp lug for conductor-to-terminal connections; use a crimp link for conductor-to-conductor joints.

Q: What stud or bolt size suits the CTL2.5-4?
A: The CTL2.5-4 has a 4mm stud hole, suited to M4 bolts and studs — commonly used on smaller terminal blocks, DIN rail terminal connectors, and light duty equipment connection points.

Q: Is the CTL2.5-4 sold individually or in a bag?
A: The CTL2.5-4 is sold individually.