Solderless Connections

Solderless connections join electrical components without solder.

A great variety of terminals are available, these are noninsulated

These are insulated terminals & butt splices.

Terminal identification

FORKS ?SPADES ?

EYES ?BUTT SPLICES ?

Butt Splices

Forks & Eyes

Spades

Wire Nuts

Dependable connections can be made without solder.

Making good solderless connections.

1. Determine correct connector2. Select correct tool3. Prepare wire4. Set connector into crimper5. Insert wire into connector6. Crimp fully7. Crimp strain relief if required8. Install finished connection

Selecting the correct connectorUse the one that best matches demands of the installation.

Select the correct tool

The right strippers and crimpers are essential for good connections.

These are NOT crimpers !

Prepare the wire

Select right stripper size and strip insulation without cutting wire strands.

Set connector into crimpers

Setting connector into crimper

INSTERT wire into connector

Fully crimp connector

Crimp a strain relief if available

Crimping step 1

Crimp the conductors for a secureelectrical connection.

Crimping step 2

Crimp the insulation for a Strain Relief.

INSTALL the connector

SECURE installation

Splicing

Select correct size of splice.

Strips wire(s) to be spliced

Insert wire into only one end first

Fully insert & crimp splice at one end first

Insert & Crimp other end

Finished Splice

Two types of crimps

Different types of crimpers can do the same job.

Different jaws to crimp with

Two types of crimping action

Second type of crimping action

Butt splice crimped two ways

Wire Nuts

Common wire connections in industrial and commercial wiring.

Steel threads inside a plastic shell.

Inside, coned threads twist and hold wires together.

1. STRIP

2. INSERT

3. TWIST

4. TUG

FOUR steps for wire nuts

Strip two or three wires that are to be connected.

Insert wires into wire nut

Twist nut until wires are tight.

Tug on wires to make sure connection is secure.

Securing wires

It is important to secure wiring for safety and dependability.

Wire bundle mount

Wire bundle clamps

Cable Tie Wraps

Cable tie wraps are used in many different ways to secure wiring.

Cable Tie Wraps

Solderless Connectors Review

1. What is a solderless connector ?

2. Name a type of solderless connector ?

3. Which type will best hold onto a terminal stud ?

4. Which type doesn’t require crimpers ?

5. Where is a “fork” type connector used ?

6. What is a solderless wire splice connector termed ?

Review continued

7. What is an advantage of solderless connections ?

8. What is a disadvantage of solderless connections ?

9. What specialized tools are required ?

10. Name one of the wrong tools that can be used ?

11. How can you check the quality of the connections ?

Review continued12. Why are some connectors red, or yellow,

or blue ?

13. What color size is used for 20 AWG wire ?14 AWG wire ?10 AWG wire ?

14. What is used to secure a wire to something ?

15. What is a tie wrap ?

Review Continued

16. Where is a wire bundle mount used ?

17. Should a non-insulated spade connector be used to connect trailer wiring to a truck ?

18. Should wire nuts be used for truck-to-trailerwiring?

19. Is it a proper wiring practice to install two wiresinto one spade terminal ?

Review continued

20. What type of connector requires more than one crimp ?

21. Will a pair of pliers make a proper crimp ?

22. Can the same crimper jaws be used for both insulatedand non-insulated connectors?

Review Continued

23. Name a disadvantage of wire nuts.

24. In a double crimp, non-insulated connector, should the wire or insulation be crimped first ?

25. It is a good idea to tug on crimped connections ?