Datasheet
a
b
≥
25
a
≥
25
604
PHOENIX CONTACT
This mechanical test defines the
connection of commercially available
conductors according to the manufacturer's
information.
Terminal blocks must be designed in such
a way that conductors with the
documented rated cross section and the
rated connecting capacity can be connected.
The specifications are documented by the
manufacturer in metric (mm
2
) and Anglo-
American values (AWG).
Rated cross section means:
Value of the maximum possible cross
section of all connectable conductors
(stranded and single or multi-strand) that
certain thermal, mechanical, and electrical
requirements refer to.
Rated connecting capacity means:
Range encompassing the largest to the
smallest connectable cross section
(reduced by at least 2 increments) and the
number of connectable conductors for
which the terminal block has been designed.
During the test, the terminal blocks are
connected with the rated cross section and
the rated connecting capacity.
Alternatively, the rated cross section can
also be verified using gauges, see figures.
It must be possible to freely insert
conductors or gauges into or connect them
to the open terminal point.
Terminal blocks from Phoenix Contact
offer dimensions for the defined rated cross
section that are well above those required
by the standard. Thanks to appropriate
design measures, the rated cross sections
can also be connected with a ferrule and
insulating collar in all terminal blocks of the
CLIPLINE complete system.
IEC 60947-7-1/-2
Connection capacity
Gauges (internal cylindrical gauge) of design
A and B according to IEC 60947-1
Dimensions in
mm
Design A
Design B
Dimensions in mm
Structure and dimensions of connecting cables
Cross
section
Single-strand Multi-strand Fine-strand American Wire Gauge [AWG]
Diameter max.
dimension
Number of
wires
Diameter max.
dimension
Number of
wires
(minimum
number)
Diameter max.
dimension
Number of
wires
(guide value)
Gauge
No.
Solid wires* Stranded wires*
[mm
2
] AWG [ mm] [circ. mils] [mm
2
] [ mm] [circ. mils] [mm
2
]
0.2 0.5 1 - - - -
24
0.51 404 0.21 - - -
0.5 0.9 1 1.1 7 1.1 16
20
0.81 1022 0.52 0.97 1111 0.56
0.75 1.0 1 1.2 7 1.3 24
18
1.02 1620 0.82 1.16 1600 0.82
1 1.2 1 1.4 7 1.5 32
(17)
1.15 2050 1.04 - - -
- - - - - - -
16
1.29 2580 1.31 1.50 2580 1.32
1.5 1.5 1 1.7 7 1.8 30
(15)
1.45 3260 1.65 - - -
---- -- -
14
1.63 4110 2.08 1.85 4100 2.09
2.5 1.9 1 2.2 7 2.3 50
(13)
1.83 5180 2.63 - - -
---- -- -
12
2.05 6530 3.31 2.41 6500 3.32
4 2.4 1 2.7 7 2.9 56
(11)
2.30 8230 4.17 - - -
- - - - - - -
10
2.59 10380 5.26 2.95 10530 5.37
6 2.9 1 3.3 7 3.9 84
(9)
2.91 13100 6.63 - - -
---- -- -
8
3.26 16510 8.37 3.73 16625 8.48
10 3.7 1 4.2 7 5.1 80
(7)
3.67 20800 10.56 4.15 20820 10.55
---- -- -
6
4.12 26240 13.30 4.67 26250 13.39
16 4.6 1 5.3 7 6.3 126
(5)
4.62 33100 16.77 5.24 33100 16.77
- - - - - - -
4
5.19 41740 21.15 5.90 41650 21.24
25 - - 6.6 7 7.8 196
3
5.83 52600 26.67 6.61 52630 26.67
35 - - 7.9 7 9.2 276
2
6.54 66360 33.62 7.42 66150 33.74
---- -- -
1
7.35 83690 42.41 8.33 83706 42.69
50 - - 9.1 19 11 396
1/0
8.25 105600 53.51 9.35 104640 53.36
70 - - 11 19 13.1 360
2/0
9.27 133100 67.44 10.52 132300 67.47
95 - - 12.9 19 15.1 475
3/0
10.40 167800 85.03 11.79 172500 87.98
- - - - - - -
4/0
11.08 211600 107.22 13.26 210400 107.30
120 - - 14.5 37 17 608
250 kcmil
250 MCM 127 14.62 250000 127.00
150 - - 16.2 37 19 756
300 kcmil
300 MCM 152 16.00 300000 152.00
185 - - 18 37 21 925
350 kcmil
350 MCM 177 17.30 350000 177.00
240 - - 20.6 61 24 1224
500 kcmil
500 MCM 253 20.66 500000 253.00
300 - - 23.1 61 27 1525
600 kcmil
600 MCM 304 - - -
400 - - 26.1 61 31 - - - - - - -
* 1000 circular mils = 1 MCM = 1 kcmil
Technical information
Connection capacity