IRRAX™TUBE NHR4

CatalogNo.719

[Halogen-free flame-retarded heat-resistant tubing]
UL recognized

■ Free of halogens
■ Flame-retarded

  • UL
  • moisture resistance Single
  • Flame Retarded

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Basic Properties

Category Heat-resistant tubing (Non-shrinkable)
Material Cross-linked flexible flame-retarded polyolefin
Flammability Flame Retarded
Continuous operating temperature -55 to 125℃
Specifications/Approvals UL224
　　File No.: E48762
　　Operating temperature: 125℃
　　Voltage rating: 300V
　　Flammability rating: VW-1
Marking on Surface 125℃ VW-1 IRRAXTUBE NHR4 -F-
Available colors Black, Red, Yellow, Green, Blue, Gray, Pink
Flexibility Flexible
Environmental Compliance Halogen-free,RoHS,ELV
Industry Military / Aerospace,Construction machinery,Industrial machinery,Electronics

Oil/Chemical resistance (room temperature)

Gasoline Gas oil Lubricant Alcohol Acid Alkali
△ △ △ ◎ ○ ○

◎：Very good　○：Good　△：Not applicable in some cases

Features

Properties Items Requirements Typical values*
Mechanical Tensile strength (before aging)
Tensile strength (after aging)
Elongation (before aging)
Elongation (after aging)
Heat shock
Cold bend		 min. 10.4MPa
158℃ x 7 days, min. 7.3MPa
min. 200%
158℃ x 7 days, min. 100%
250℃ x 4 hours, no crack
-30℃ x 1 hour, no crack		 11.7MPa
11.4MPa
500%
465%
Pass
Pass
Electrical Dielectric withstand (before aging)
Dielectric withstand (after aging)
Dielectric breakdown (before aging)
Dielectric breakdown (after aging)
Volume resistivity		 AC2.5kV x 60 sec., no breakdown
158℃ x 7 days, AC2.5kV x 60 sec., no breakdown
min. AC2.5kV
158℃ x 7 days, min. 50% of original and min. AC2.5kV
min. 1.0 x 1014Ω・cm		 Pass
Pass
15.5kV
Pass
4.2 x 1015Ω・cm
Chemical Corrosion against bare copper

Flammability		 158℃ x 7 days, no corrosion after leaving under 95% humidity,
23℃ x 24 hours
Flame-retarded, pass VW-1		 Pass
410%
Pass

* For reference use only

Sizes

Nominal size（mm） Inside diameter（mm） Wall thickness（mm） Unit length（m）
3×0.45 3.00±0.20 0.48±0.04 400
4×0.45 4.00±0.20 0.48±0.04 400
5×0.45 5.00±0.20 0.48±0.04 200
6×0.45 6.0±0.2 0.48±0.04 100
7×0.45 7.0±0.3 0.48±0.04 100
8×0.45 8.0±0.3 0.48±0.04 100
9×0.45 9.0±0.3 0.48±0.04 100
10×0.45 10.0±0.4 0.48±0.04 100
  • Longitudinal change: min. -20% (150℃ x 3 minutes)
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