S3 or S3/S7 BFOU(i) 250V
Applications
These cables are fire resistant, flame retardant, low smoke, halogen free and mud resistant, used for instrumentation, communication, control and alarm systems.
Standards
- IEC 60092-353
- IEC 60092-351
- IEC 60092-359
- IEC 60331-21
- IEC 60332-1
- IEC 60332-3-22
- IEC 60754-1,2
- IEC 61034-1,2
- NEK 606:2004
Construction
Conductors |
Circular tinned annealed stranded copper wire to IEC 60228 class 2. |
Insulation |
Mica tape + Halogen free EPR compound. |
Twinning |
Colour coded cores twisted together. |
Individual Shielding |
Each pairs/triples are screened by copper backed polyester tape in contact with a stranded tinned copper drain wire and wrapped with polyester tape. |
|
Pairs/triples are numbered with numbered tape or by numbers printed directly on the insulated conductors. |
Bedding |
Halogen free compound. |
Armour |
Tinned copper wire braid. |
Outer Sheath |
Halogen free thermosetting compound, SHF2 (for TYPE S3). |
|
Halogen free MUD resistant thermosetting compound, SHF MUD (for TYPE S3/S7), coloured grey (blue for intrinsically safe). |
Electrical Characteristics
Nominal Cross Section Area |
mm^2 |
0.75 |
1.0 |
1.5 |
2.5 |
Nominal Conductor Diameter |
mm |
1.1 |
1.3 |
1.6 |
2.0 |
Maximum Resistant@20℃ |
Ω/km |
26.3 |
19.3 |
12.9 |
8.02 |
Mutual Capacitance |
nF/km |
85 |
95 |
100 |
110 |
Nominal Inductance@1KHz |
MH/km |
0.731 |
0.691 |
0.673 |
0.629 |
Maximum L/R@1KHz |
μH/Ω |
20 |
25 |
35 |
55 |
Operating Voltage |
V |
250 |
250 |
250 |
250 |
Mechanical and Thermal Properties
Bending Radius |
8×OD (during installation) |
|
6×OD (fixed installed) |
Temperature Range |
-20℃ ~ +90℃ |
Dimensions and Weight
Construction No. of elements×No. of cores in element×Cross section(mm^2) |
Nominal Insulation Thickness (mm) |
Nominal Sheath Thickness (mm) |
Nominal Overall Diameter (mm) |
Nominal Weight (kg/km) |
Inner |
Outer |
1×2×0.75 |
0.6 |
1.1 |
1.2 |
12.1 |
225 |
2×2×0.75 |
0.6 |
1.1 |
1.3 |
16.7 |
405 |
3×2×0.75 |
0.6 |
1.1 |
1.4 |
17.5 |
540 |
4×2×0.75 |
0.6 |
1.1 |
1.4 |
18.6 |
610 |
5×2×0.75 |
0.6 |
1.1 |
1.5 |
20.2 |
705 |
6×2×0.75 |
0.6 |
1.1 |
1.5 |
21.7 |
805 |
7×2×0.75 |
0.6 |
1.1 |
1.5 |
21.7 |
830 |
8×2×0.75 |
0.6 |
1.1 |
1.6 |
23.6 |
905 |
9×2×0.75 |
0.6 |
1.1 |
1.7 |
25.1 |
1000 |
10×2×0.75 |
0.6 |
1.1 |
1.7 |
26.2 |
1030 |
12×2×0.75 |
0.6 |
1.1 |
1.7 |
26.8 |
1145 |
14×2×0.75 |
0.6 |
1.1 |
1.8 |
28.2 |
1205 |
15×2×0.75 |
0.6 |
1.1 |
1.8 |
30.0 |
1305 |
16×2×0.75 |
0.6 |
1.1 |
1.9 |
30.6 |
1415 |
18×2×0.75 |
0.6 |
1.1 |
1.9 |
32.1 |
1475 |
19×2×0.75 |
0.6 |
1.2 |
1.9 |
32.7 |
1575 |
20×2×0.75 |
0.6 |
1.2 |
2.0 |
34.1 |
1700 |
21×2×0.75 |
0.6 |
1.2 |
2.0 |
35.0 |
1765 |
23×2×0.75 |
0.6 |
1.2 |
2.0 |
35.5 |
1895 |
24×2×0.75 |
0.6 |
1.2 |
2.1 |
37.7 |
1980 |
27×2×0.75 |
0.6 |
1.2 |
2.2 |
38.7 |
2165 |
30×2×0.75 |
0.6 |
1.2 |
2.2 |
39.9 |
2335 |
33×2×0.75 |
0.6 |
1.2 |
2.3 |
41.5 |
2535 |
37×2×0.75 |
0.6 |
1.2 |
2.3 |
42.7 |
2725 |
1×3×0.75 |
0.6 |
1.1 |
1.1 |
11.9 |
245 |
2×3×0.75 |
0.6 |
1.1 |
1.4 |
15.5 |
420 |
3×3×0.75 |
0.6 |
1.1 |
1.4 |
18.4 |
580 |
4×3×0.75 |
0.6 |
1.1 |
1.4 |
19.7 |
675 |
7×3×0.75 |
0.6 |
1.1 |
1.6 |
23.6 |
960 |
8×3×0.75 |
0.6 |
1.1 |
1.7 |
25.0 |
980 |
12×3×0.75 |
0.6 |
1.3 |
1.8 |
29.6 |
1435 |
16×3×0.75 |
0.6 |
1.4 |
1.9 |
32.6 |
1770 |
19×3×0.75 |
0.6 |
1.4 |
2.1 |
34.4 |
1985 |
24×3×0.75 |
0.6 |
1.8 |
2.2 |
39.6 |
2580 |
1×2×1.0 |
0.6 |
1.1 |
1.2 |
12.5 |
245 |
2×2×1.0 |
0.6 |
1.1 |
1.4 |
17.6 |
450 |
3×2×1.0 |
0.6 |
1.1 |
1.4 |
18.3 |
600 |
4×2×1.0 |
0.6 |
1.1 |
1.4 |
19.3 |
625 |
5×2×1.0 |
0.6 |
1.1 |
1.5 |
21.1 |
920 |
6×2×1.0 |
0.6 |
1.1 |
1.6 |
22.8 |
950 |
7×2×1.0 |
0.6 |
1.1 |
1.6 |
22.8 |
860 |
8×2×1.0 |
0.6 |
1.1 |
1.6 |
24.7 |
985 |
9×2×1.0 |
0.6 |
1.1 |
1.7 |
26.3 |
1135 |
10×2×1.0 |
0.6 |
1.1 |
1.7 |
27.4 |
1170 |
12×2×1.0 |
0.6 |
1.1 |
1.8 |
28.3 |
1300 |
14×2×1.0 |
0.6 |
1.1 |
1.8 |
29.5 |
1380 |
15×2×1.0 |
0.6 |
1.1 |
1.9 |
31.6 |
1510 |
16×2×1.0 |
0.6 |
1.1 |
1.9 |
32.1 |
1620 |
18×2×1.0 |
0.6 |
1.2 |
2.0 |
34.2 |
1745 |
19×2×1.0 |
0.6 |
1.2 |
2.0 |
34.5 |
1830 |
20×2×1.0 |
0.6 |
1.2 |
2.1 |
36.0 |
1975 |
21×2×1.0 |
0.6 |
1.2 |
2.1 |
37.3 |
2135 |
23×2×1.0 |
0.6 |
1.2 |
2.1 |
37.9 |
2295 |
24×2×1.0 |
0.6 |
1.2 |
2.2 |
39.8 |
2335 |
27×2×1.0 |
0.6 |
1.2 |
2.2 |
40.6 |
2500 |
30×2×1.0 |
0.6 |
1.2 |
2.3 |
42.1 |
2720 |
33×2×1.0 |
0.6 |
1.2 |
2.3 |
43.6 |
2940 |
37×2×1.0 |
0.6 |
1.4 |
2.4 |
45.4 |
3230 |
1×3×1.0 |
0.6 |
1.1 |
1.2 |
12.6 |
275 |
2×3×1.0 |
0.6 |
1.1 |
1.4 |
18.8 |
640 |
3×3×1.0 |
0.6 |
1.1 |
1.5 |
19.3 |
665 |
4×3×1.0 |
0.6 |
1.1 |
1.5 |
20.9 |
775 |
5×3×1.0 |
0.6 |
1.1 |
1.6 |
22.8 |
965 |
6×3×1.0 |
0.6 |
1.1 |
1.7 |
25.4 |
1135 |
7×3×1.0 |
0.6 |
1.1 |
1.7 |
25.4 |
1180 |
8×3×1.0 |
0.6 |
1.1 |
1.7 |
27.0 |
1270 |
9×3×1.0 |
0.6 |
1.1 |
1.8 |
28.9 |
1450 |
10×3×1.0 |
0.6 |
1.1 |
1.9 |
31.1 |
1455 |
12×3×1.0 |
0.6 |
1.1 |
1.9 |
32.0 |
1685 |
14×3×1.0 |
0.6 |
1.2 |
2.0 |
33.8 |
1820 |
15×3×1.0 |
0.6 |
1.2 |
2.0 |
34.8 |
1935 |
16×3×1.0 |
0.6 |
1.2 |
2.1 |
36.0 |
2105 |
18×3×1.0 |
0.6 |
1.2 |
2.1 |
38.1 |
2310 |
19×3×1.0 |
0.6 |
1.2 |
2.2 |
38.6 |
2355 |
20×3×1.0 |
0.6 |
1.2 |
2.2 |
39.6 |
2590 |
21×3×1.0 |
0.6 |
1.2 |
2.2 |
40.4 |
2685 |
23×3×1.0 |
0.6 |
1.2 |
2.3 |
42.0 |
2935 |
24×3×1.0 |
0.6 |
1.2 |
2.3 |
42.8 |
3145 |
27×3×1.0 |
0.6 |
1.4 |
2.4 |
45.3 |
3255 |
30×3×1.0 |
0.6 |
1.4 |
2.5 |
47.4 |
3565 |
32×3×1.0 |
0.6 |
1.4 |
2.5 |
48.6 |
3755 |
1×2×1.5 |
0.7 |
1.1 |
1.2 |
13.5 |
295 |
2×2×1.5 |
0.7 |
1.1 |
1.4 |
19.2 |
545 |
3×2×1.5 |
0.7 |
1.1 |
1.5 |
20.2 |
725 |
4×2×1.5 |
0.7 |
1.1 |
1.5 |
21.5 |
770 |
5×2×1.5 |
0.7 |
1.1 |
1.6 |
23.4 |
975 |
6×2×1.5 |
0.7 |
1.1 |
1.7 |
25.4 |
1130 |
7×2×1.5 |
0.7 |
1.1 |
1.7 |
25.4 |
1170 |
8×2×1.5 |
0.7 |
1.1 |
1.7 |
27.5 |
1225 |
9×2×1.5 |
0.7 |
1.1 |
1.8 |
29.4 |
1405 |
10×2×1.5 |
0.7 |
1.1 |
1.9 |
30.9 |
1440 |
12×2×1.5 |
0.7 |
1.1 |
1.9 |
31.6 |
1680 |
14×2×1.5 |
0.7 |
1.2 |
2.0 |
33.6 |
1750 |
15×2×1.5 |
0.7 |
1.2 |
2.1 |
36.0 |
1910 |
16×2×1.5 |
0.7 |
1.2 |
2.1 |
36.9 |
2055 |
18×2×1.5 |
0.7 |
1.2 |
2.2 |
38.9 |
2260 |
19×2×1.5 |
0.7 |
1.2 |
2.2 |
39.3 |
2395 |
20×2×1.5 |
0.7 |
1.2 |
2.2 |
40.8 |
2540 |
21×2×1.5 |
0.7 |
1.2 |
2.3 |
42.1 |
2660 |
23×2×1.5 |
0.7 |
1.2 |
2.3 |
42.7 |
2865 |
24×2×1.5 |
0.7 |
1.4 |
2.4 |
45.2 |
3080 |
27×2×1.5 |
0.7 |
1.4 |
2.4 |
46.1 |
3155 |
30×2×1.5 |
0.7 |
1.4 |
2.5 |
47.8 |
3440 |
32×2×1.5 |
0.7 |
1.4 |
2.6 |
49.0 |
3685 |
33×2×1.5 |
0.7 |
1.4 |
2.6 |
49.7 |
3740 |
37×2×1.5 |
0.7 |
1.4 |
2.6 |
51.2 |
4040 |
1×3×1.5 |
0.7 |
1.1 |
1.3 |
13.6 |
325 |
2×3×1.5 |
0.7 |
1.1 |
1.5 |
18.5 |
560 |
3×3×1.5 |
0.7 |
1.1 |
1.5 |
21.4 |
800 |
4×3×1.5 |
0.7 |
1.1 |
1.6 |
23.7 |
975 |
5×3×1.5 |
0.7 |
1.1 |
1.7 |
25.4 |
1195 |
6×3×1.5 |
0.7 |
1.1 |
1.8 |
28.3 |
1405 |
7×3×1.5 |
0.7 |
1.1 |
1.8 |
28.3 |
1470 |
8×3×1.5 |
0.7 |
1.1 |
1.8 |
30.2 |
1585 |
9×3×1.5 |
0.7 |
1.2 |
1.9 |
32.6 |
1835 |
10×3×1.5 |
0.7 |
1.2 |
2.0 |
35.1 |
1935 |
12×3×1.5 |
0.7 |
1.2 |
2.1 |
36.8 |
2115 |
14×3×1.5 |
0.7 |
1.2 |
2.1 |
38.3 |
2360 |
15×3×1.5 |
0.7 |
1.2 |
2.2 |
39.7 |
2530 |
16×3×1.5 |
0.7 |
1.2 |
2.2 |
40.8 |
2775 |
18×3×1.5 |
0.7 |
1.2 |
2.3 |
42.9 |
2905 |
19×3×1.5 |
0.7 |
1.2 |
2.3 |
43.3 |
3200 |
20×3×1.5 |
0.7 |
1.4 |
2.4 |
44.9 |
3305 |
21×3×1.5 |
0.7 |
1.4 |
2.4 |
45.8 |
3430 |
23×3×1.5 |
0.7 |
1.4 |
2.5 |
47.7 |
3755 |
24×3×1.5 |
0.7 |
1.4 |
2.5 |
48.6 |
3925 |
27×3×1.5 |
0.7 |
1.4 |
2.6 |
51.1 |
4115 |
30×3×1.5 |
0.7 |
1.4 |
2.7 |
53.5 |
4510 |
32×3×1.5 |
0.7 |
1.6 |
2.8 |
55.5 |
4850 |
1×2×2.5 |
0.7 |
1.1 |
1.3 |
14.0 |
340 |
2×2×2.5 |
0.7 |
1.1 |
1.5 |
18.5 |
560 |
3×2×2.5 |
0.7 |
1.1 |
1.5 |
21.6 |
865 |
4×2×2.5 |
0.7 |
1.1 |
1.6 |
23.2 |
1010 |
5×2×2.5 |
0.7 |
1.1 |
1.7 |
25.3 |
1185 |
6×2×2.5 |
0.7 |
1.1 |
1.7 |
27.4 |
1370 |
7×2×2.5 |
0.7 |
1.1 |
1.7 |
27.4 |
1430 |
8×2×2.5 |
0.7 |
1.1 |
1.8 |
29.9 |
1560 |
9×2×2.5 |
0.7 |
1.1 |
1.9 |
31.9 |
1780 |
10×2×2.5 |
0.7 |
1.2 |
2.0 |
33.8 |
1775 |
12×2×2.5 |
0.7 |
1.2 |
2.0 |
34.6 |
1965 |
14×2×2.5 |
0.7 |
1.2 |
2.1 |
36.9 |
2275 |
15×2×2.5 |
0.7 |
1.2 |
2.2 |
39.5 |
2480 |
16×2×2.5 |
0.7 |
1.2 |
2.2 |
40.1 |
2590 |
18×2×2.5 |
0.7 |
1.2 |
2.3 |
42.3 |
2825 |
19×2×2.5 |
0.7 |
1.2 |
2.3 |
42.7 |
2930 |
20×2×2.5 |
0.7 |
1.4 |
2.4 |
44.8 |
3240 |
21×2×2.5 |
0.7 |
1.4 |
2.4 |
46.1 |
3375 |
23×2×2.5 |
0.7 |
1.4 |
2.5 |
46.9 |
3560 |
24×2×2.5 |
0.7 |
1.4 |
2.5 |
49.1 |
3660 |
27×2×2.5 |
0.7 |
1.4 |
2.6 |
50.3 |
4000 |
30×2×2.5 |
0.7 |
1.4 |
2.7 |
52.2 |
4370 |
33×2×2.5 |
0.7 |
1.4 |
2.7 |
54.1 |
4735 |
37×2×2.5 |
0.7 |
1.6 |
2.8 |
56.4 |
5225 |
1×3×2.5 |
0.7 |
1.1 |
1.2 |
14.5 |
380 |
2×3×2.5 |
0.7 |
1.1 |
1.6 |
22.5 |
950 |
3×3×2.5 |
0.7 |
1.1 |
1.6 |
23.4 |
1055 |
4×3×2.5 |
0.7 |
1.1 |
1.7 |
25.3 |
1250 |
5×3×2.5 |
0.7 |
1.1 |
1.7 |
27.4 |
1460 |
6×3×2.5 |
0.7 |
1.1 |
1.9 |
30.7 |
1735 |
7×3×2.5 |
0.7 |
1.1 |
1.9 |
30.7 |
1830 |
8×3×2.5 |
0.7 |
1.2 |
2.0 |
33.3 |
2025 |
9×3×2.5 |
0.7 |
1.2 |
2.0 |
35.4 |
2290 |
10×3×2.5 |
0.7 |
1.2 |
2.2 |
38.8 |
2405 |
12×3×2.5 |
0.7 |
1.2 |
2.2 |
40.0 |
2685 |
14×3×2.5 |
0.7 |
1.2 |
2.3 |
41.9 |
3000 |
15×3×2.5 |
0.7 |
1.2 |
2.3 |
43.1 |
3190 |
16×3×2.5 |
0.7 |
1.4 |
2.4 |
44.9 |
3420 |
18×3×2.5 |
0.7 |
1.4 |
2.5 |
47.2 |
3740 |
19×3×2.5 |
0.7 |
1.4 |
2.5 |
47.6 |
3885 |
20×3×2.5 |
0.7 |
1.4 |
2.5 |
48.9 |
4185 |
21×3×2.5 |
0.7 |
1.4 |
2.6 |
50.0 |
4370 |
23×3×2.5 |
0.7 |
1.4 |
2.7 |
52.1 |
4760 |
24×3×2.5 |
0.7 |
1.4 |
2.7 |
53.0 |
4785 |
27×3×2.5 |
0.7 |
1.6 |
2.8 |
56.2 |
5335 |
30×3×2.5 |
0.7 |
1.6 |
2.9 |
58.8 |
5855 |
32×3×2.5 |
0.7 |
1.6 |
3.0 |
60.6 |
6215 |