Klauke L-Series Cu Butt Connectors (0.75-630mm²)

Product overview

Klauke L-Series Cu Butt Connectors (0.75-630mm²) are high-performance copper sleeves engineered for safe, reliable inline conductor connections. Suitable for finely stranded, stranded and pre-rounded sector-shaped conductors, these L-Series Cu Butt Connectors ensure secure, low-resistance terminations across a wide range of electrical installations. Manufactured from tin-plated copper with a precision internal chamfer, these connectors deliver consistent performance in control panels, switchgear and power distribution systems.

Part Numbers
: LV075, LV15, LV2.5, LV4, LV6, LV10, LV16, LV25, LV35, LV50, LV70, LV95, LV120, LV150, LV185, LV240, LV300, LV400, LV500, LV630.

Klauke L-Series Cu Butt Connectors (0.75-630mm²)

Ideal for industrial electricians, panel builders and control cabinet technicians, these compact connectors offer fast, simple conductor joining with high mechanical and electrical reliability. A clearly marked butt centreline ensures accurate alignment, while the annealed copper construction supports smooth crimping across the full range. Whether you’re using Class 2, Class 5 or sector-shaped conductors, Klauke L-Series Connectors ensure a dependable connection with minimal effort.

Key Features & Benefits

  • Cross-section range: 0.75 to 630 mm² – supports fine-stranded and multi-stranded conductors
  • Compatible with Class 2 & Class 5 conductors – ideal for DIN EN 60228 applications
  • Precision internal chamfer – ensures smooth cable insertion and a secure fit
  • Annealed copper (EN13600) – improves crimping performance and mechanical strength
  • Tin-plated surface – provides long-term protection against corrosion
  • Butt mark for alignment – simplifies safe, accurate positioning during installation
  • Item designation stamped on connector – enabling quick identification on-site
  • Suitable for pre-rounded sector-shaped conductors – expands versatility across applications
  • Works with EKM60ID and EK30ID tools – compatible for fine-wired crimping operations

Klauke L-Series Cu Butt Connectors – For Inline Conductor Terminations

Designed for use in demanding environments, Klauke Butt Connectors combine strength, ease of use and long-lasting conductivity. Whether you’re joining power cables, wiring control gear or handling panel work, 0.75-630mm Klauke Cu Connectors ensure clean, accurate connections with minimal processing time.

When quality, reliability and installation speed matter, choose Klauke Cu Butt Connectors. They are the trusted solution you need for precision electrical joining.


For Additional Information on Klauke L-Series Cu Butt Connectors (0.75-630mm²), please consult the Technical Data Table or PDF File below.

*Technical Data subject to change without notice.

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Technical Data

Part Number mm² Dimensions (mm²) - D1 Dimensions (mm²) - D4 Dimensions (mm²) - I Pack Size
LV075 0.75 1.3 2.8 20.0 100
LV15 1.5 1.8 3.3 25.0 100
LV2.5 2.5 2.3 4.2 2.0 100
LV4 4 3.0 5.0 25.0 100
LV6 6 4.0 6.0 20.0 100
LV10 10 4.4 6.0 21.0 100
LV16 16 5.5 8.0 26.0 100
LV25 25 6.8 9.0 29.0 100
LV35 25 8.2 11.0 32.0 100
LV50 50 9.5 12.0 38.0 100
LV70 70 11.2 14.5 42.0 100
LV95 95 13.4 17.0 48.0 50
LV120 120 15.0 19.5 52.0 50
LV150 150 16.5 21.0 56.0 50
LV185 185 19.0 24.0 65.0 25
LV240 240 21.0 26.0 75.0 25
LV300 300 23.5 29.5 75.0 25
LV400 400 27.0 34.0 75.0 20
LV500 500 31.0 38.0 140.0 10
LV630 630 34.0 40.0 160.0 5

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