SOLISTRAND, Budget and DIAMOND GRIP
Uninsulated Terminals and Splices Catalog 65505
Revised 9-00
Table listing: Circular Mil Area for common wire sizes
For drawings, technical data or samples, contact your AMP sales engineer or call the AMP Technical Support Center 1-800-522-6752.
Dimensions are in inches and millimeters unless otherwise specified. Values in brackets are metric equivalents.
Specifications subject to change. Consult AMP for latest specifications.
4
Computing Circular
Mil Area
For best results, the proper
AMP terminal or splice must be
selected not by the “fit” of wire or
wires in the terminal barrel, but
by the total circular mil area in
cross section of the wires used.
For this purpose AMP has pre-
pared convenient tables to assist
in the calculation of circular mil
areas. When the totals are
known, the proper AMP terminal
or splice can be determined
q u i c k l y .
Unusual combinations or special
applications should be submitted
to AMP engineering department
for size recommendation. In any
application, the careful selection
of terminals by the circular mil
area method will insure the high-
est possible performance, both
electrically and mechanically, in
your AMP terminations.
Example of multiple wire
configurations used in one
termination
ALWAYS SELECT TERMINALS
BY THE CIRCULAR MIL AREA
METHOD. For example, a No.
18 AWG 16-strand conductor
(1600 CMA) and a No. 16 AWG
19-strand conductor (2426
CMA) will have a combined total
of 4026 CMA. This total CMA is
equivalent to a No. 14 AWG
c o n d u c t o r .
Wire Sizes in AWG
and mm2to CMA
Note: The following tables are
applicable to single and
multiple strand, round,
conductors only.
Nominal Strands Approximate
CMA Wire Size No. Diameter Conductor Diameter
AWG mm2Inch mm Inch mm
3.8 44 0.002 1 0.00195 0.050 0.002 0.051
4.0 44 0.002 1 0.002 0.051 0.002 0.051
4.8 43 0.002 1 0.0022 0.056 0.0022 0.056
6.3 42 0.003 1 0.0025 0.064 0.0025 0.064
7.8 41 0.004 1 0.0028 0.071 0.0028 0.071
9.6 40 0.005 1 0.0031 0.079 0.0031 0.079
12.3 39 0.006 1 0.0035 0.089 0.0035 0.089
15.2 38 0.008 1 0.0039 0.099 0.0039 0.099
16.0 38 0.008 1 0.004 0.102 0.004 0.102
20.2 37 0.010 1 0.0045 0.114 0.0045 0.114
25.0 36 0.013 1 0.005 0.127 0.005 0.127
31.4 35 0.016 1 0.0056 0.142 0.0056 0.142
39.7 34 0.020 1 0.0063 0.160 0.0063 0.160
50.0 33 0.025 1 0.00707 0.180 0.0071 0.180
50.4 33 0.026 1 0.0071 0.180 0.0071 0.180
64.0 32 0.032 1 0.008 0.203 0.008 0.203
79.2 31 0.040 1 0.0089 0.226 0.0089 0.226
100.0 30 0.051 1 0.01 0.254 0.01 0.254
104.0 30 0.053 26 0.002 0.051 0.012 0.305
127.7 29 0.064 1 0.0113 0.287 0.011 0.279
152.1 29 0.077 10 0.0039 0.099 0.013 0.330
158.8 29 0.080 1 0.0126 0.320 0.013 0.330
175.0 28 0.089 7 0.005 0.127 0.015 0.381
182.6 28 0.093 19 0.0031 0.079 0.016 0.406
202 27 0.102 1 0.0142 0.361 0.014 0.356
204 27 0.103 51 0.002 0.051 0.016 0.406
238 26 0.121 6 0.0063 0.160 0.018 0.457
250 26 0.127 26 0.0031 0.079 0.018 0.457
250 26 0.127 10 0.005 0.127 0.018 0.457
251 26 0.127 8 0.0056 0.142 0.018 0.457
253 26 0.128 1 0.0159 0.404 0.016 0.406
256 26 0.130 16 0.004 0.102 0.018 0.457
274 26 0.139 18 0.0039 0.099 0.022 0.558
278 26 0.141 7 0.0063 0.160 0.019 0.483
288 26 0.146 72 0.002 0.051 0.022 0.559
300 26 0.152 3 0.01 0.254 0.02 0.508
304 26 0.154 19 0.004 0.102 0.02 0.508
313 25 0.159 1 0.0177 0.450 0.018 0.457
314 25 0.159 10 0.0056 0.142 0.02 0.508
318 25 0.161 8 0.0063 0.160 0.021 0.533
320 25 0.162 1 0.0179 0.455 0.018 0.457
388 24 0.197 1 0.0197 0.500 0.02 0.508
397 24 0.201 10 0.0063 0.160 0.023 0.584
400 24 0.203 16 0.005 0.127 0.023 0.584
400 24 0.203 4 0.01 0.254 0.023 0.584
403 24 0.204 8 0.0071 0.180 0.023 0.584
404 24 0.205 1 0.0201 0.511 0.02 0.508
408 24 0.207 13 0.0056 0.142 0.023 0.584
408 24 0.207 102 0.002 0.051 0.02 0.508
475 24 0.241 19 0.005 0.127 0.023 0.584
634 22 0.321 8 0.0089 0.226 0.029 0.737
635 22 0.322 16 0.0063 0.160 0.029 0.737
640 22 0.324 10 0.008 0.203 0.029 0.737
640 22 0.324 1 0.0253 0.643 0.025 0.635
650 22 0.329 26 0.005 0.127 0.033 0.838
700 22 0.355 7 0.01 0.254 0.03 0.762
754 22 0.382 19 0.0063 0.160 0.033 0.838
812 21 0.411 1 0.0285 0.724 0.029 0.737
992 20 0.503 1 0.0315 0.800 0.032 0.813
1000 20 0.507 10 0.01 0.254 0.038 0.965
1008 20 0.511 20 0.0071 0.180 0.039 0.991
1024 20 0.519 16 0.008 0.203 0.039 0.991
1024 20 0.519 1 0.032 0.813 0.032 0.813
1024 20 0.519 256 0.002 0.051 0.039 0.991
1025 20 0.519 41 0.005 0.127 0.038 0.965
1032 20 0.523 26 0.0063 0.160 0.039 0.991
1111 20 0.563 7 0.0126 0.320 0.039 0.991
1186 20 0.601 19 0.0079 0.201 0.041 1.041
1289 19 0.653 1 0.0359 0.912 0.036 0.914
1492 18.5 0.756 7 0.0146 0.371 0.047 1.194
1512 18.5 0.766 30 0.0071 0.180 0.047 1.194
1536 18.5 0.778 384 0.002 0.051 0.047 1.194
1536 18.5 0.778 24 0.008 0.203 0.047 1.194
1600 18 0.811 16 0.01 0.254 0.049 1.245
1608 18 0.815 19 0.0092 0.234 0.049 1.245