Thomas&Betts BCT840 Installation And Gauging Procedure Download Page 1

BLUE - 6 GA

BR
O

WN - 2 GA

GREEN - 1 GA

BLA

CK - 2/0

PURPLE - 4/0

8 GA - RED

4 GA - GRA

Y

1/0 - PINK

3/0 - ORANGE

250 MCM - 

YELLO

W

ADJUSTABLE CRIMPER

INSTALLATION AND GAUGING PROCEDURE

For Battery Cables 4 GA to 4/0 

Catalog Number BCT840 and BCT840S

WARNING

HANDLES ARE NON-INSULATING.

DO NOT CRIMP ON ENERGIZED WIRES.

1. Strip cable without cutting or nicking the strands.
2. Select the side of the tool according to the type of 

connector to be installed: casting or tubing.

3. Move indenter by turning the adjusting wheel until 

the pointer slot aligns with the selected cable size 

line. The wheel should be in a positive detented 

position (See figure 1).

4. Insert cable into connector barrel until it bottoms.

INSTALLING PROCEDURE

01

TA01063  C   page 1 of 2

5. Locate connector in the tool between the die nest 

and indenter so that the die is between the color 

code marks (See Figure 2).

6. Crimp connector by closing the handles.

 

NOTE:

 Some connectors require more than one 

crimp. Refer to instructions packed with connectors.

Connector

Cable Size 
Line

Nest

Indenter

Adjusting 
Wheel

Type of
 Connector

Figure 1

Figure 2

Die Nest

Connector

Die Indentor

Cable

WARNING

BCT840S is equipped with th SHURE-STAKE

®

 Full Stroke 

Compelling Mechanism.

 Keep fingers and other body 

parts clear of die nest during operation of this tool.

Pointer Slot

Tubing Connector

Casting Connector

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