Cable connectors and tubular ERKO lugs are a modern alternative to crimping technology for fitting cable terminals and tubular connectors.
The design of these connectors uses breakable bolts, which allow the use of one cable connector or terminal for various types and cross-section of cables, affecting the speed, reliability and ergonomics of assembly
Breakable bolts, break up at a certain point of their tightening (no need to use a torque wrench). The screw is formed as a series of grooves provided on a common core. The design ensures correct bolt snap for a particular cross-section of the vein. This solution of the screw design allows the use of the electrical connector for a wide range of cross-section (construction) cable wires. Each tightening of the screws with the same torque (thanks to the special grooves) provides repeatable assembly which affects the reliability of the connection. Another advantage in the body coupling is the place of cable interface is the helix that allows to break the oxidised surface of the insulated wire. Power plants and wiring utilities that use screw connectors, achieve savings in stock-keeping (just order eg. 2 types of cable connectors for the warehouse instead of eg. 10). The choice of connection technology using screw terminals and connectors eliminates assembly errors, accelerates assembly, easier installation (small tightening wrench ensures easy access even in the most difficult places of assembly).
The most important advantages:
- -controlled tightening,
- -the optimal pressure,
- -easy, quick and secure assembly,
- -wide application
Types of cable connectors and terminals for medium voltage from 1kV-36kV.
- SZS Shear off screw connector up to 36 kV in the cross section of 16 ÷ 300 mm2, for the veins construction rm, re, sm, se, rmc,
- SKS Shear off screw connector up to 36 kV in the cross section of 16 ÷ 300 mm2, for the veins construction rm, re, sm, se, rmc,
- SKN Shear off screw connector up to 6 kV in the cross section of 16 ÷ 240 mm2, for the veins construction rm, re, sm, se,
Suitable shape of the body connectors and screw terminals allows actuation of the electric field and discharge of incomplete.