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

S3 or S3/S7 BFOU(i) 250V S3 or S3/S7 BFOU(i) 250V

 

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
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