Crimp-n-Seal Splice Sleeves

Crimp-n-Seal Splice Sleeve Installation

A crimp-n-seal splice sleeve is really a butt connector covered with a special weather sealing shrink tubing.  When it is required to splice one wire to one wire and the splice will be exposed to the weather, a crimp-n-seal splice sleeve is recommended.   If multiple wires need to be spliced together, or if a single wire splice is required inside the passenger compartment, use a splice clip as shown in the next section (9.4.2).

There are three different sizes of commonly used crimp-n-seal splice sleeves for metric wire sizes ranging from 0.5 - 5.0 mm² . Each size is represented by a different color sleeve: Yellow (3.0-5.0 mm² ), Blue (1.0-2.0 mm² ), and Salmon (0.5-0.8 mm² ).

To install a splice sleeve perform the following steps:

• Cut off any damaged portions of the wires to be spliced together, you may have to splice in extra wire if the wire is too short to be spliced together.

• Strip approximately 1/4" of insulation off of the wires to be spliced together.

• Insert the exposed wire strands into the splice sleeve.  Crimping too hard can cut the wire strands and cause excessive resistance in the wire connection.

• Use a flat crimp to make a firm physical connection.  

• Using a heat gun, apply heat to the splice sleeve beginning in the center of the sleeve working towards the outsides of the sleeve.  

• Test the splice for continuity.