Silicone-rubber Insulated Cabtyre Cables: SRCT/SR-KCT
Max. operating temp:180℃
The SRCT and SR-KCT series offer heat-resistant and cold-resistant insulated wire consisting of multiple silicone-rubber insulated wire twisted together, and then silicone-rubber sheathed.
The SRCT series offers products standardized by Ninomiya Electric Wire, with a rated voltage of 600 V. The SR-KCT series offers PSE products standardized according to the Electrical Appliances and Material Safety Act, with a rated voltage of 600 V.
Standard identification colors
| Number of conductors | Sheath | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|
| 2 | Gray | Red | White | – | – | – | – | – |
| 3 to 7 | Gray | Black | White | Red | Green | Yellow | Brown | Blue |
Color layout
*The standard identification colors for duplex wire are red and white.
* We can also make products with more than seven conductors.
* For insulation and sheaths, we can use colors according to your specifications.
* The SR-KCT series offers products with filters if necessary.
* The SR-KCT products have filters as standard specifications.
Features of Silicone Rubber
- Excellent resistance to heat, cold, water, and weather
- Excellent resistance to ozone, arcs, and coronas
- Stable physical and electrical characteristics in a wide temperature range
*Silicone rubber is also characterized by low tear strength. Its rubber properties also degrade when it comes into contact with high pressure steam at temperatures higher than 150°C. In addition, it swells when it comes into contact with non-polar organic compounds such as gasoline, toluene, and nitrogen tetrachloride and is vulnerable to strong acids and alkalis.
Applications
- SR/R-LK series wire is used for applications such as lead wire, wire used in general high-temperature parts with temperatures up to 180℃, and wire for moving elements that requires flexibility.
* Please consult with us if flex resistance is needed or the wire is used under a special circumstance.
Lineup
| Product Name (Rated voltage) |
Nominal cross-sectional area m㎡ |
Conductor (TA) | Insulation | Standard overall diameter | Conductor resistance (20℃, standard) Ω/km |
Insulation resistance (20℃, minimum) MΩ・km |
Test voltage (AC, 1 min.) V |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Composition Pcs/ mm |
Outside diameter mm |
Thickness mm |
Outside diameter mm |
2 conductors mm |
3 conductors mm |
4 conductors mm |
5 conductors mm |
6 conductors mm |
7 conductors mm |
|||||
| SRCT 600V |
0.75 | 30/0.18 | 1.1 | 1.1 | 3.3 | 9.7 | 10.2 | 11.1 | 12.0 | 13.0 | 13.0 | 26.6 | 100 | 1,500 |
| 1.25 | 50/0.8 | 1.5 | 1.1 | 3.7 | 10.3 | 10.9 | 11.9 | 12.9 | 14.0 | 14.0 | 16.0 | 100 | 1,500 | |
| 2 | 37/0.26 | 1.8 | 1.1 | 4.0 | 11.1 | 11.6 | 12.7 | 13.9 | 15.1 | 15.1 | 10.2 | 100 | 1,500 | |
| 3.5 | 45/0.32 | 2.5 | 1.1 | 4.7 | 12.4 | 13.1 | 14.3 | 15.6 | 17.0 | 17.0 | 5.54 | 100 | 1,500 | |
| 5.5 | 35/0.45 | 3.1 | 1.1 | 5.3 | 13.6 | 14.4 | 15.8 | 17.3 | 18.9 | 18.9 | 3.56 | 90 | 1,500 | |
| 8 | 50/0.45 | 3.7 | 1.1 | 5.9 | 14.8 | 15.7 | 17.2 | 18.9 | – | – | 2.52 | 80 | 1,500 | |
| 14 | 88/0.45 | 5.5 | 1.1 | 7.7 | 18.5 | 19.7 | 21.7 | – | – | – | 1.46 | 60 | 2,000 | |
| SR-KCT (600V) <PSE> |
0.75 | 30/0.18 | 1.2 | 1.1 | 3.3 | 10.3 | 10.8 | 11.7 | 12.8 | 14.0 | 14.0 | 26.6 | 100 | 3,000 |
| 1.25 | 50/0.8 | 1.5 | 1.1 | 3.7 | 10.9 | 11.5 | 12.7 | 13.9 | 15.2 | 15.2 | 16.0 | 100 | 3,000 | |
| 2 | 37/0.26 | 1.8 | 1.1 | 4.0 | 11.7 | 12.5 | 13.7 | 14.9 | 16.3 | 16.3 | 10.2 | 100 | 3,000 | |
| 3.5 | 45/0.32 | 2.5 | 1.1 | 4.7 | 13.2 | 14.1 | 15.5 | 17.0 | 18.6 | 18.6 | 5.54 | 100 | 3,000 | |
| 5.5 | 35/0.45 | 3.1 | 1.1 | 5.3 | 14.6 | 15.6 | 17.2 | 18.9 | 20.7 | 20.7 | 3.56 | 90 | 3,000 | |
| 8 | 50/0.45 | 3.7 | 1.1 | 5.9 | 16.0 | 17.1 | 18.8 | 20.7 | – | – | 2.52 | 80 | 3,000 | |
Weight (kg/km)
| Product Name (Rated voltage) |
Nominal cross-sectional area m㎡ |
2 conductors | 3 conductors | 4 conductors | 5 conductors | 6 conductors | 7 conductors |
|---|---|---|---|---|---|---|---|
| Estimated weight kg/km |
Estimated weight kg/km |
Estimated weight kg/km |
Estimated weight kg/km |
Estimated weight kg/km |
Estimated weight kg/km |
||
| SRCT 600V |
0.75 | 105 | 125 | 145 | 160 | 190 | 190 |
| 1.25 | 130 | 150 | 180 | 200 | 235 | 240 | |
| 2 | 155 | 185 | 225 | 245 | 295 | 305 | |
| 3.5 | 210 | 255 | 320 | 355 | 430 | 445 | |
| 5.5 | 275 | 340 | 425 | 480 | 580 | 610 | |
| 8 | 345 | 435 | 550 | 625 | – | – | |
| 14 | 550 | 700 | 885 | – | – | – | |
| SR-KCT (600V) <PSE> |
0.75 | 125 | 140 | 170 | 200 | 235 | 240 |
| 1.25 | 145 | 165 | 205 | 250 | 300 | 300 | |
| 2 | 175 | 205 | 255 | 305 | 365 | 370 | |
| 3.5 | 240 | 290 | 360 | 440 | 530 | 545 | |
| 5.5 | 315 | 380 | 485 | 590 | 710 | 735 | |
| 8 | 395 | 485 | 620 | 770 | – | – |
List of allowable current values for silicone-rubber insulated cabtyre cables
| Product Name Size (SQ) |
Number of conductors | Ambient temperature (℃) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 | 160 | 170 | ||
| SRCT 0.75 |
2 | 22.4 | 21.6 | 20.6 | 19.7 | 18.7 | 17.6 | 16.5 | 15.2 | 13.9 | 12.4 | 10.8 | 8.8 | 6.2 |
| 3 | 19.4 | 18.6 | 17.8 | 17.0 | 16.1 | 15.2 | 14.2 | 13.1 | 12.0 | 10.7 | 9.3 | 7.6 | 5.3 | |
| 4 | 17.7 | 17.0 | 16.2 | 15.5 | 14.7 | 13.8 | 12.9 | 12.0 | 10.9 | 9.8 | 8.5 | 6.9 | 4.9 | |
| 5 | 16.5 | 15.9 | 15.2 | 14.5 | 13.7 | 12.9 | 12.1 | 11.2 | 10.2 | 9.1 | 7.9 | 6.4 | 4.5 | |
| 6 | 15.7 | 15.1 | 14.4 | 13.7 | 13.0 | 12.3 | 11.5 | 10.6 | 9.7 | 8.7 | 7.5 | 6.1 | 4.3 | |
| SRCT 1.25 |
2 | 30.2 | 29.0 | 27.8 | 26.5 | 25.1 | 23.7 | 22.1 | 20.5 | 18.7 | 16.7 | 14.5 | 11.8 | 8.3 |
| 3 | 26.0 | 25.0 | 23.9 | 22.8 | 21.6 | 20.4 | 19.1 | 17.7 | 16.1 | 14.4 | 12.5 | 10.2 | 7.2 | |
| 4 | 23.6 | 22.7 | 21.7 | 20.7 | 19.7 | 18.5 | 17.3 | 16.0 | 14.6 | 13.1 | 11.3 | 9.2 | 6.5 | |
| 5 | 22.1 | 21.3 | 20.3 | 19.4 | 18.4 | 17.3 | 16.2 | 15.0 | 13.7 | 12.2 | 10.6 | 8.6 | 6.1 | |
| 6 | 21.0 | 20.2 | 19.3 | 18.4 | 17.5 | 16.5 | 15.4 | 14.3 | 13.0 | 11.6 | 10.1 | 8.2 | 5.8 | |
| SRCT 2 |
2 | 38.9 | 37.4 | 35.8 | 34.1 | 32.3 | 30.5 | 28.5 | 26.4 | 24.1 | 21.5 | 18.7 | 15.2 | 10.7 |
| 3 | 33.4 | 32.1 | 30.7 | 29.3 | 27.8 | 26.2 | 24.5 | 22.7 | 20.7 | 18.5 | 16.0 | 13.1 | 9.2 | |
| 4 | 30.4 | 29.2 | 28.0 | 26.7 | 25.3 | 23.9 | 22.3 | 20.7 | 18.9 | 16.9 | 14.6 | 11.9 | 8.4 | |
| 5 | 28.4 | 27.3 | 26.1 | 24.9 | 23.6 | 22.3 | 20.8 | 19.3 | 17.6 | 15.7 | 13.6 | 11.1 | 7.8 | |
| 6 | 25.9 | 24.9 | 23.8 | 22.7 | 21.5 | 20.3 | 19.0 | 17.6 | 16.0 | 14.3 | 12.4 | 10.1 | 7.1 | |
| SRCT 3.5 |
2 | 55.8 | 53.6 | 51.4 | 49.0 | 46.5 | 43.8 | 41.0 | 37.9 | 34.6 | 31.0 | 26.8 | 21.9 | 15.5 |
| 3 | 47.8 | 46.0 | 44.0 | 41.9 | 39.8 | 37.5 | 35.1 | 32.5 | 29.6 | 26.5 | 23.0 | 18.7 | 13.2 | |
| 4 | 43.4 | 41.7 | 40.0 | 38.1 | 36.1 | 34.1 | 31.9 | 29.5 | 26.9 | 24.1 | 20.8 | 17.0 | 12.0 | |
| 5 | 40.6 | 39.0 | 37.4 | 35.6 | 33.8 | 31.9 | 29.8 | 27.6 | 25.2 | 22.5 | 19.5 | 15.9 | 11.2 | |
| 6 | 38.5 | 37.0 | 35.4 | 33.8 | 32.0 | 30.2 | 28.3 | 26.2 | 23.9 | 21.3 | 18.5 | 15.1 | 10.6 | |
| SRCT 5.5 |
2 | 72.6 | 69.8 | 66.8 | 63.7 | 60.4 | 57.0 | 53.3 | 49.3 | 45.0 | 40.3 | 34.9 | 28.5 | 20.1 |
| 3 | 62.1 | 59.6 | 57.1 | 54.4 | 51.7 | 48.7 | 45.5 | 42.2 | 38.5 | 34.4 | 29.8 | 24.3 | 17.2 | |
| 4 | 56.4 | 54.2 | 51.9 | 49.5 | 46.9 | 44.2 | 41.4 | 38.3 | 35.0 | 31.3 | 27.1 | 22.1 | 15.6 | |
| 5 | 52.6 | 50.5 | 48.4 | 46.1 | 43.8 | 41.3 | 38.6 | 35.7 | 32.6 | 29.2 | 25.2 | 20.6 | 14.6 | |
| 6 | 49.9 | 47.9 | 45.9 | 43.7 | 41.5 | 39.1 | 36.6 | 33.9 | 30.9 | 27.7 | 23.9 | 19.5 | 13.8 | |
| SRCT 8 |
2 | 89.5 | 86.0 | 82.4 | 78.5 | 74.5 | 70.2 | 65.7 | 60.8 | 55.5 | 49.6 | 43.0 | 35.1 | 24.8 |
| 3 | 76.4 | 73.4 | 70.3 | 67.0 | 63.6 | 60.0 | 56.1 | 51.9 | 47.4 | 42.4 | 36.7 | 30.0 | 21.2 | |
| 4 | 69.3 | 66.6 | 63.7 | 60.8 | 57.6 | 54.3 | 50.8 | 47.1 | 43.0 | 38.4 | 33.3 | 27.1 | 19.2 | |
| 5 | 64.6 | 62.1 | 59.4 | 56.7 | 53.8 | 50.7 | 47.4 | 43.9 | 40.1 | 35.8 | 31.0 | 25.3 | 17.9 | |
| 6 | 61.3 | 58.9 | 56.4 | 53.7 | 51.0 | 48.1 | 45.0 | 41.6 | 38.0 | 34.0 | 29.4 | 24.0 | 17.0 | |
*The above allowable current values of SRCT series products are calculated based on the calculation conditions specified in JCS 168E of The Japanese Electric Wire & Cable Makers’ Association.