H07Z-U Solid Copper Wire

  • According to IEC and GB Standard
  • Approved by CCC, CE
  • Place of Origin: Henan, China
  • In Stock
  • HS Code: 8544492100
  • Packing: 100 Meters

5

The H07Z-U is a specialized low-voltage 450/750V single-core cable engineered for permanent, fixed installations. Distinguished by its solid conductor, it provides a rigid structure that—unlike stranded (H07Z-R) or flexible (H07Z-K) variants—is optimized for static routes where frequent bending is not required. Crucially, the cable features a flame-retardant, halogen-free (LSZH) outer sheath, which significantly reduces the generation of toxic gases and opaque smoke in the event of a fire. The enhanced safety profiles makes the H07Z-U the ideal solution for building wiring, industrial facilities, and fixed appliance connections where protecting human life and equipment is a priority.

  • Manufactured in accordance with EN 50525-3-41
  • Strong pressure resistance, bending resistance, not easy to break
  • Acid-resistant and corrosion-resistant, high-temperature resistant, cold-resistant and freeze-resistant
  • Enhanced safety in case of fire: low smoke (EN 61034-2), halogen-free (EN 60754-1, EN 60754-2), flame-retardant (EN 60332-1-2)
  • Rated voltage: 450/750 V
  • Test Voltage: 2.5KV/5Min
  • Temperature Range: +5°C to +90°C (Fixed)
  • Max. short circuit temperature: 250°C
  • maximum conductor temperature: 90°C
  • Minimum installation temperature: -5°C
  • Min. Bending Radius: 6 x Overall Diameter
h07z-u
  1. Conductor: Class 1 Solid Copper
  2. Insulation Types: LSZH (Low Smoke Zero Halogen)
  • Core Identification: Red, Black, Blue, Yellow, Orange, White, Green/Yellow, Grey, Brown, Violet, Pink
Nominal cross section Area [mm²]
Nominal Stranding of conductor
[mm]
Nominal
thickness
insulation [mm]
Nominal outer diameter [mm]
Cable 
weight
[kg/km]
Conductor resistance at 20°C
[Ohm/km]
1.5
1/1.38
0.8
3
22
13.3
2.5
7/1.78
0.8
3.7
33
7.98
4
1/2.25
0.9
4.2
48
4.95
6
7/1.05
0.9
4.8
68
3.3
10
7/1.35
1
6.3
120
1.91
16
7/1.7
1
6.9
175
1.21
25
7/2.1
1.2
8.4
260
0.78
35
19/1.5
1.2
9.5
350
0.554
50
19/1.78
1.4
11.2
475
0.386

FAQ

The key difference is the insulation. H07V-U is PVC, while H07Z-U is LSZH (Low Smoke Zero Halogen). You must use H07Z-U in public buildings (airports, hospitals) to ensure that, in the event of a fire, the cable does not emit toxic fumes or dense smoke.
The "U" indicates a Solid Copper Conductor (Class 1). Unlike flexible (-K) or stranded (-R) variants, H07Z-U is rigid. It is specifically designed for permanent, fixed wiring in switchboards, distribution panels, and conduits where high vibration or movement is not present.
H07Z-U is a single-core, non-sheathed cable. It must be installed inside pipes, conduits, or closed trunking for mechanical protection. It is rated for 450/750V and is ideal for internal wiring of devices and lighting systems, but not for direct burial or outdoor exposure.

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