Brochure

24 Amphenol
C 16-3
Technical Information
Termination methods
Screw connection
Screw clamps are designed acc. to EN
60999-1 / VDE 609-1.
Chart 1 below shows the screw size depending
on wire size and the required clamping and testing
torque..
Chart 1
Diagram 1 below shows the range of tensile strength for a screw
connection with a clamp screw M3, fastened with a torque of 50 Ncm,
depending on the wire size.
Diagram 1
Wire size (mm
2
) max. 4
Screw size M 3
Test torque (Ncm) 50
Tensile strength
Wire gauge
This comparison chart allows a cross reference between American Wire
Gauge (AWG) and metric wire sizes (mm
2
).
Chart 2
It has to be noted that wires of the same AWG number but with different
composition have slightly different mm
2
.
AWG Wire composition
Wire diameter
30 1 x 0,25 0,25 mm 0,05 mm
2
7 x 0,10 0,36 mm 0,06 mm
2
28 1 x 0,32 0,32 mm 0,08 mm
2
7 x 0,13 0,38 mm 0,09 mm
2
26 1 x 0,40 0,40 mm 0,13 mm
2
7 x 0,16 0,48 mm 0,14 mm
2
19 x 0,10 0,51 mm 0,15 mm
2
24 1 x 0,51 0,51 mm 0,21 mm
2
7 x 0,20 0,61 mm 0,23 mm
2
19 x 0,13 0,64 mm 0,24 mm
2
22 1 x 0,64 0,64 mm 0,33 mm
2
7 x 0,25 0,76 mm 0,36 mm
2
19 x 0,16 0,81 mm 0,38 mm
2
20 1 x 0,81 0,81 mm 0,52 mm
2
7 x 0,32 0,97 mm 0,56 mm
2
19 x 0,20 1,02 mm 0,62 mm
2
18 1 x 1,02 1,02 mm 0,79 mm
2
19 x 0,25 1,27 mm 0,96 mm
2
16 19 x 0,29 1,44 mm 1,23 mm
2
14 19 x 0,36 1,80 mm 1,95 mm
2
12 19 x 0,46 2,29 mm 3,09 mm
2
10 37 x 0,40 3,10 mm 4,60 mm
2
8 133 x 0,29 4,0 mm 8,80 mm
2
6 133 x 0,36 5,5 mm 13,5 mm
2
Chart 3
Composition and Dimensions of Copper Wires
Wire Size Wire Composition Wire diameter
0,09 mm
2
12 x 0,10 0,48 mm
0,14 mm
2
18 x 0,10 0,50 mm
0,25 mm
2
14 x 0,15 0,70 mm
0,34 mm
2
7 x 0,25 0,78 mm
0,5 mm
2
16 x 0,20 1,0 mm
0,75 mm
2
24 x 0,20 1,2 mm
1,0 mm
2
32 x 0,20 1,4 mm
1,5 mm
2
30 x 0,25 1,6 mm
2,5 mm
2
35 x 0,30 2,2 mm
4,0 mm
2
56 x 0,30 2,8 mm
6,0 mm
2
19 x 0,64 3,4 mm
10 mm
2
19 x 0,80 4,3 mm
Wire size