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HRWHeat-Resistant Wires

Glass-yarn braided Nickel-clad-copper-conductor Wire: TN200

Compliant with RoHS2
Max. operating temp:220℃

TN200 is a super heat-resistant wire, the conductors of which are heat-resistant and corrosion-resistant as well as flexible nickel-clad-copper-conductor wire coated with glass fiber. A silicone coating, which excels in insulating characteristics, is applied to the insulation of TN200. TN200 is manufactured according to the NINOMIYA Standards.

Features of nickel-clad-copper-conductor wire

  • The conductor resistance of nickel-clad-copper-conductor wire is about a quarter (1/4) of that of nickel-conductor wire; therefore the former can be thinner in diameter and lighter than the latter while the allowable current value of the former is the same as that of the latter.
  • Since nickel-clad-copper-conductor wire is more flexible than nickel-conductor wire, it can be easily processed and routed.
  • The nickel plate is 20 to 30 times as thick as the conventional nickel plate (1 to 5μm). Note that the area ratio between nickel and copper is about 28:72.
  • Since the surface of nickel-clad-copper-conductor wire is nickel, it is more corrosion-resistant than copper wire.
  • Its electric conductivity and tensile strength rarely change when it is continuously used at a temperature of 220℃.

Applications

TN200 is used for applications such as the lead wire in an electric heater, which must be highly resistant to heat as well as corrosion, and wire in high-temperature equipment.

Lineup

Nominal cross-sectional area
m㎡
Conductor Served glass yarn thickness
mm
Braid thickness
mm
Standard overall diameter
mm
Conductor resistance
(20℃, standard)
Ω/km
Insulation resistance
(20℃, minimum)
MΩ・km
Test voltage
(AC, 1 min.)
V
Estimated weight
kg/km
Composition
Pcs/mm
Outside diameter
mm
0.5 20/0.18 0.9 0.15 0.3 1.9 44.5 1.0 1000 10
0.75 30/0.18 1.2 0.15 0.3 2.1 29.7 1.0 1000 13
1.25 50/0.18 1.5 0.15 0.35 2.5 17.8 1.0 1000 19
2.0 37/0.26 1.8 0.15 0.35 2.8 11.5 1.0 1000 26
3.5 66/0.26 2.6 0.15 0.35 3.4 6.46 1.0 1000 44
5.5 35/0.45 3.1 0.15 0.35 4.1 4.07 1.0 1000 63
8 50/0.45 3.7 0.6 4.9 2.85 1.0 1000 88
14 88/0.45 4.9 0.6 6.1 1.62 1.0 1000 146
22 7/20/0.45 7.0 0.6 8.2 1.04 1.0 600 235
38 7/34/0.45 9.1 0.6 10.3 0.610 1.0 600 390

*Since TN200 series products have hygroscopicity, their insulating characteristics differ depending on the atmosphere in which each of them is routed. Therefore, avoid using TN200 series products in humid or wet places. Please feel free to contact our Sales Department for custom-made products not listed above.

List of allowable current values

Size Ambient temperature
90℃ 100℃ 110℃ 120℃ 130℃ 140℃ 150℃ 160℃ 170℃ 180℃ 190℃ 200℃ 210℃
0.5SQ 19.3 18.6 17.8 17.1 16.2 15. 14.4 13.3 12.2 10.9 9.2 7.4 5.0
0.75SQ 24.6 23.6 22.7 21.7 20.7 19.6 18.2 16.9 15.3 13.8 11.8 9.4 6.6
1.25SQ 34.3 33.0 31.7 30.3 28.9 27.3 25.7 23.7 21.8 19.3 16.5 13.5 9.3
2SQ 44.4 42.7 41.2 39.3 37.6 35.5 33.2 30.8 28.2 25.3 21.5 17.4 11.3
3.5SQ 65.0 62.6 60.5 57.9 55.2 52.3 48.6 45.3 41.7 37.0 31.5 25.9 17.6
5.5SQ 86.4 83.0 80.1 76.5 72.6 68.6 64.3 59.6 54.6 49.1 42.8 33.9 22.7
8SQ 109 105 101 97.3 93.0 87.5 82.8 76.6 69.9 62.6 54.2 44.1 29.9
14SQ 162 157 152 145 138 132 123 115 105 94.6 80.8 66.9 45.2
22SQ 220 212 205 197 188 178 168 156 143 129 110 89.1 60.1
38SQ 319 307 296 284 271 257 242 227 206 185 161 131 88.7

*The above allowable current values are the values calculated based on the assumption that the products are used in a normal open atmosphere.
Please use TN200 series products with a safety current that ensures safe operation.

*The above allowable current values of TN200 series products are the reference values calculated based on our demonstration experiments.

*TN200 series products are manufactured according to the Standards of Ninomiya Electric Wire Co., Ltd.