Cable terminal

     An extremely important element of the electrical instalation is properly made connection. Modern cable terminal and cable lug enabling safe connection are very important element. Depending on their destination, current load, as well as the design and functionality, extensive offer allows for selecting the appropriate product.

     Appropriately selected cable terminal or cable lug to the material, specially designed for aluminum or copper installation, cross section and wire type and correct crimping ensure trouble-free work of the electrical system.
Depending on type of crimping cable terminal or cable lug it’s necessary to choose  properly form of crimpings: hexagonal, single indent, oval, trapezoidal, square.

     Descriptions of these crimping form are the same for cable connectors and cable terminals, and they are in the table no. 1

Description of crimping

Ilustration

Single indent for copper terminals without insulation made according to DIN 46234 and pin terminals made according to DIN 46230 for wire of cross section of 0,5 ÷ 120 mm2, and for copper tubular terminals for wire of cross section

of 0,5 ÷ 6mm2 (e.g. KOA, KWA, KLA).

form of crimping – single indent

form of crimping – single indent

Oval for copper ring terminals with polyamide insulation made according to DIN 46237 and DIN 46234, for copper pin terminals with polyamide insulation made according to DIN 46230 and DIN 46231 for wire of cross section of 0,5 ÷ 120mm2 (e.g. KOE, KWE) and for insulated receptacles and tabs (MSE, TSE).

orm of crimping – oval

orm of crimping – oval

Trapezoidal for copper cable end-sleeves made according to DIN 46228 Par t 1 and Par t 4 and double copper cable end-sleeves for wire of cross section of 0,5 ÷ 185mm2 (e.g. TA, TE

form of crimping – trapezoidal

form of crimping – trapezoidal

Square for copper cable end-sleeves made according to DIN 46228 Par t 1 and Par t 4 and double copper cable end-sleeves for wire of cross section of 0,5 ÷ 10mm2 (e.g. TA, TE, TV).

form of crimping – square

form of crimping – square

Wrapped over wire conductor and insulation, for brass terminals made according to DIN 46247, DIN 46248 and DIN 46225 for wire of cross section of 0,5 ÷ 6mm2 (e.g. MS, TS).

form of crimping – wrapped over wire conductor and insulation

form of crimping – wrapped over wire conductor and insulation

Round forming of aluminum sector conductors of cross section of 25 ÷ 300 re, 16 ÷ 240 rm for aluminum terminals. re – singlestrand wire cross section in mm2, rm – multistrand wire cross section in mm2

form of crimping – round forming

form of crimping – round forming

Hexagonal for copper and aluminum terminals and connectors for wire of cross section of 6 ÷ 625mm2.

form of crimping – hexagonal

form of crimping – hexagonal

Table no. 1 Sourcehttp://erko.ae/offer/catalog/

 

     After choosing properly cable terminal or cable connector depending on the voltage,  cross section, with or without DIN standard, size of the screw hole, or in case of copper cable lug available in two versions: tinned or non tinned (protect from oxidation of copper), made of tube or copper tape, strip the cable to the same lenght as tubular part of terminal. The next step is to choose appropriate tool and dies for pressing. In the offer of the manufacturer are hand, hydraulic, pneumatic or battery powered tools.

     Crimping is completed when the crimping dies connects, but remember that crimping can be single for example: KOE cable terminals or multiple for example: KCR, KLA tubular terminal. Copper and aluminium cable lug according DIN standard at the tubular part have crimping marks. We can read from it for example: how many crimpings should be maid depending on the type of dies: thin or wide. What kind of discriminant of the dies is suitable for the proper crimping. Drawing no. 2 shows an example of that discriminant.

Markierungen auf den Kabelschuhen und Verbindern nach DIN

Discriminant of crimping tubular copper and aluminium cable lugs

     Fig. 2. Discriminant of crimping tubular copper and aluminium cable lugs

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     It is Essentials to keep the Direktion of crimping cable terminals and cable connectors as shown below (fig. 3)

Pressrichtung

Fig. 3. Crimping direction

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     Wide range of ERKO products allows for proper match cable lugs to the wire. Manufacturer has in offer:

  • ring, spade and pin cable terminals
  • – cable end-sleeves with or without insulation
  • – receptacles, tabs and claw terminals,
  • – Cu tubular cable terminals and cable connectors,
  • – Al cable terminals and cable connectors,
  • – Al.-Cu cable terminals and cable connectors,
  • – shear off skrew terminals and connectors 1-36kV,
  • – medium voltage cable terminals and cable connectors,
  • – telecommunication cable shielding terminals,
  • – special cable terminals and cable connectors.

Below is description of cable terminals and cable connectors from offer ERKO company.

Ring cable terminals KOE

     KOE ring cable terminals are used for stranded Cu wires. Polyamide insulation resistance to temperature from -40 ° C to + 125 ° C. They are made of galvanically tinned copper tape and with tubular part according DIN 46234. In the catalogue  can be find and match  correct size of cable terminal. Also in catalogue can be checked which crimping tool can be used.

TSE tab is used for stranded Cu wires. Made of brass, has copper end-sleeve and polyamide insulation. Resistance to temperature is from -40 ° C to + 125 ° C and is made according DIN 46248

A wide range of cable terminals and cable connectors (readan article about cable connectors) in various dimensions distinguished by high quality.

 

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Cable terminal in E-catalog.