Contents
Cutting
Cutting
Cutting
Introduction
Cutting tools
Front cable cutter
Cable cutter
Cutting and releasing tools
Mounting rail cutter
Hole punch
B.2
B.4
B.6
B.7
B.9
B.11
B.12
B
B.1
Introduction
Cutting
Cutting
B
A large number of cables and conductors in many different
types and designs are used to connect electrical and electronic
components. The cables and wires must be accurately prepared
for the various types of connection. The quality of the cutting
process is therefore of critical importance. Mechanical efficiency
together with the special cutting pattern reduces the manual
force required to a minimum.
Weidmüller is a specialist in the cutting of copper or aluminium
cables. The product selection ranges from cutting tools for
small cross-sections (with direct transmission of force) to cutting
tools for large diameters. Weidmüller’s wide range of cutting
tools fulfils all the criteria for professional cable preparation. The
demands Weidmüller makes of its products can be summarised
simply: a smooth, straight cut without deforming the conductor.
Users profit directly from this philosophy, whilst maintaining
ease of use.
B.2
At Weidmüller the term “cutting” refers to the severing of
cables, wires and conductors of copper or aluminium with an
appropriate tool for the application.
The requirement for all cutting tools is to perform a smooth,
straight cut without deforming the conductor.
According to
DIN 8588,
experts differentiate between shear
cutting, wedge-action cutting, tearing and breaking.
Shear cutting is employed particularly in the cutting of cables,
wires and conductors. Cutting tools with cross blades should
perform an oblique cut and operate without play.
The essential quality characteristics for professional cutting
tools are a cutting edge shape which is suited to, and opti-
mised for, the corresponding application, so that the manual
forces required for cutting remain low. This allows single-
handed operation.
Tools by Weidmüller comply with all requirements imposed
on professional cutting tools.
Movement of the blades
We differentiate between two basic cutting processes:
• Push cut
• Draw cut
In
push cut,
the cutting
movement is perpendicular
between tool and workpiece.
In
draw cut,
the cutting
movement is oblique to the
tool.
Position of the blades
Clean cut
Insulation
Conductor
In
position 1
the blades act
directly and over the whole
length, i.e. considerable force
is required.
In
position 2,
the blades cross
as in a pair of scissors, the cut
is therefore “offset” and requires
less force.
An
“unclean” cut
may have the following appearance:
Conductor sheared off
Conductor pulled out
Squeezed cable
B.3
Cutting
B
Cutting tools
Cutting tools
•
Cuttingformationfordifferentcablesizes
increasesthequalityofthecutsforsmaller
cross-sections
•Notsuitableforsteelwires,steel-armoured
cables,aluminiumalloysandhard-drawncopper
conductors!
•Cuttingwithoutdeformationoftheconductor
KT 8
KT 12
KT 22
B
Cutting
max. 8 mm
max. 16 mm
2
max. 16 mm
2
max. 16 mm
2
max. 12 mm
max. 16 mm
2
max. 25 mm
2
max. 35 mm
2
max. 22 mm
max. 25 mm
2
max. 50 mm
2
max. 95 mm
2
Technical data
Max. cutting performance, copper cable
Solid(max.conductorcross-section)
mm²/AWG
Stranded(max.conductorcross-section)
mm²/AWG
Flexible(max.conductorcross-section)
mm²/AWG
Flexible,stranded(max.conductordiameter)
mm
Max. cutting performance, aluminium cable
Stranded(max.conductorcross-section)
mm²/-
Stranded(max.conductordiameter)
mm
solid
mm²
Data / telephone / control cable
Max.outerdiameter
mm
Tool data
Length/Width/Height
mm
Weight
g
Note
KT8
16/6
16/6
16/6
8
16/6
8
16
8
165/65/25
180
Toolclosed
KT12
16/6
25/3
35/2
12
25/6
8
25
12
215/66/28
300
KT22
25/3
50/1
95/3/0
22
70/2/0
22
50
22
220/66/30
460
Toolclosed
Ordering data
Version
Type
KT 8
KT 12
Note
Qty
1
1
Order No.
9002650000
9002660000
Type
KT 22
Qty
1
Order No.
1157830000
B.4
Cutting tools
Cutting tools
•
Easyhandlingbecauseofautomaticopening
•Safetylockreducesriskofinjury
•Notsuitableforsteelwires,steel-armoured
cables,aluminiumalloysandhard-drawncopper
conductors!
KT 14
KT 20
B
max. 14 mm
max. 16 mm
2
max. 35 mm
2
max. 70 mm
2
max. 20 mm
max. 16 mm
2
max. 35 mm
2
max. 70 mm
2
Technical data
Max. cutting performance, copper cable
Solid(max.conductorcross-section)
mm²/AWG
Stranded(max.conductorcross-section)
mm²/AWG
Flexible(max.conductorcross-section)
mm²/AWG
Flexible,stranded(max.conductordiameter)
mm
Max. cutting performance, aluminium cable
Stranded(max.conductorcross-section)
mm²/-
Stranded(max.conductordiameter)
mm
solid
mm²
Data / telephone / control cable
Max.outerdiameter
mm
Tool data
Length/Width/Height
mm
Weight
g
Note
KT14
16/6
35/2
70/2/0
14
70/2/0
14
35
14
215/66/28
320
Toolclosed
KT20
16/6
35/2
70/2/0
20
70/2/0
20
35
20
215/66/29
400
Toolclosed
Ordering data
Version
Type
KT 14
Qty
1
Order No.
1157820000
Type
KT 20
Qty
1
Order No.
9002300000
Note
Specifying„solid-corealuminiumcable“correspondstosector-shaped
conductorwithindividualstrands
Specifying„solid-corealuminiumcable“correspondstosector-shaped
conductorwithindividualstrands
B.5
Cutting
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