SUMITUBE™ NHR4

CatalogNo.718

[125℃ rating, halogen-free, thin wall, very flexible, flame-retarded, heat-resistant tubing]
UL recognized

■ UL recognized
■ Flexible
■ Flame-retarded (halogen-based flame retardant-free)
■ Thin wall, quick shrinkage
✔RoHS directive 10 substances

Applications

■ Insulation, protection and reinforcement for termination and joints of electric wire
■ Color identification and bundling for electric wires

Basic Properties

Category	Heat shrink tubing
Material	Irradiated cross-linked flexible flame-retarded polyolefin
Flammability	Flame Retarded
Shrink temperature	min. 100℃
Shrink ratio	min. 50%
Longitudinal change	-5 ±5%
Continuous operating temperature	-55 to 125℃
Specifications/Approvals	UL224 　　File No. E75077 Rating temperature: 125℃ 　　Rating voltage: 300V Flammability: VW-1
Marking on Surface	125℃ VW-1 SUMITUBE NHR4 -F- XXX (XXX indicates size)
Available colors	Black
Flexibility	Flexible
Environmental Compliance	Halogen-free,RoHS,ELV
Industry	Construction machinery,Industrial machinery,Electronics

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

Gasoline

Gas oil

Lubricant

Alcohol

Acid

Alkali

△

◎

○

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	11.9MPa 11.5MPa 510% 460% 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 16.0kV Pass 4.0 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 380% Pass

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

11.9MPa
11.5MPa
510%
460%
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
16.0kV
Pass
4.0 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
380%
Pass

* For reference use only

Sizes

Trade size（mm）	As supplied（mm）		After recovered（mm）		Unit length（min.）（m）
Trade size（mm）	Inside diameter	Wall thickness（nom.）	Inside diameter（max.）	Wall thickness（min.）	Unit length（min.）（m）
1×0.1	1.40±0.20	0.10	0.50	0.20	200
1.5×0.1	1.90±0.20	0.10	0.75	0.20	200
2×0.1	2.30±0.20	0.10	1.00	0.20	200
2.5×0.15	2.90±0.20	0.15	1.25	0.25	200
3×0.15	3.30±0.30	0.15	1.50	0.25	200
3.5×0.15	3.80±0.30	0.15	1.75	0.25	200
4×0.15	4.40±0.30	0.15	2.00	0.25	200
5×0.15	5.50±0.30	0.15	2.50	0.25	100
6×0.15	6.5±0.4	0.15	3.00	0.28	100
7×0.15	7.5±0.4	0.15	3.50	0.28	50
8×0.15	8.5±0.4	0.15	4.00	0.28	50
9×0.15	9.5±0.4	0.15	4.50	0.28	50
10×0.15	10.5±0.5	0.15	5.00	0.28	50