
German Standard Industrial Cable H05Z-K / H07Z-K
Product Overview
The H05Z-K and H07Z-K are German standard industrial cables designed for the internal wiring of switchboards and distributor boards with an alternating nominal voltage up to 1000 Volts or a direct voltage up to 750 volts. They are generally installed in pipes or ducts and for internal wiring of appliances with a maximum operating temperature of 90°C.
These cables are generally used in areas (such as public and government buildings) where smoke and toxic fumes may cause a threat to life and equipment. The cables produce no corrosive gases when burnt, which is particularly important where electronic equipment is installed.
The cables are manufactured to <HAR> HD 22.9 S2, VDE-0282 Part-9, BS 7211, IEC 60754-2, EN 50267, VDE 0482-267, and comply with the CE Low Voltage Directive 73/23/EEC and 93/68/EEC. They are also ROHS compliant.
Features & Benefits
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LSZH Construction: Low smoke, zero halogen (LSOH) insulation and construction minimise toxic fumes and smoke in fire conditions.
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No Corrosive Gases: Produces no corrosive gases when burnt, protecting electronic equipment.
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High Temperature Resistance: Maximum operating temperature of 90°C.
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Flame Retardant: Complies with EN 50265-2-1 and IEC 60332.1.
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Cross-Linked Polyolefin Insulation: EI5 core insulation for enhanced thermal and electrical performance.
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Flexible Conductors: Fine bare copper strands to VDE-0295 Class-5, IEC 60228 Class-5, BS 6360 cl. 5, and HD 383.
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Voltage Ratings: 300/500V (H05Z-K); 450/750V (H07Z-K).
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Test Voltage: 2500 volts.
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Insulation Resistance: 10 MΩ x km.
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Low Smoke Emission: Smoke density according to EN 50268 / IEC 61034.
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Low Corrosiveness: Corrosiveness of combustion gases according to EN 50267-2-2, IEC 60754-2.
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ROHS Compliant: Meets environmental and health requirements.
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Standard Compliant: <HAR> HD 22.9 S2, VDE-0282 Part-9, BS 7211, and related standards.
Typical Applications
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Internal wiring of switchboards and distributor boards
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Alternating nominal voltage up to 1000 Volts or direct voltage up to 750 volts
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Installation in pipes or ducts
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Internal wiring of appliances with maximum operating temperature of 90°C
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Public and government buildings where smoke and toxic fumes may cause a threat
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Areas where electronic equipment is installed (no corrosive gases when burnt)
Construction

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Conductor: Fine bare copper strands
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Stranding: VDE-0295 Class-5, IEC 60228 Class-5, BS 6360 cl. 5, HD 383
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Insulation: Cross-link polyolefin EI5 core insulation
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Halogen-Free: LSOH – low smoke, zero halogen
Technical Specifications
Electrical & Thermal Characteristics
| Parameter | Value |
|---|---|
| Working Voltage | 300/500V (H05Z-K); 450/750V (H07Z-K) |
| Test Voltage | 2500 volts |
| Flexing Bending Radius | 8 x Ø |
| Static Bending Radius | 8 x Ø |
| Flexing Temperature | -15°C to +90°C |
| Static Temperature | -40°C to +90°C |
| Insulation Resistance | 10 MΩ x km |
| Smoke Density | EN 50268 / IEC 61034 |
| Corrosiveness of Combustion Gases | EN 50267-2-2, IEC 60754-2 |
| Flame Test | Flame-retardant acc. to EN 50265-2-1, IEC 60332.1 |
Parameter Table – H05Z-K
| AWG | No. of Cores x Nominal Cross Sectional Area (mm²) | Nominal Thickness of Insulation (mm) | Nominal Overall Diameter (mm) | Nominal Copper Weight (kg/km) | Nominal Weight (kg/km) |
|---|---|---|---|---|---|
| 20 (16/32) | 1 x 0.5 | 0.6 | 2.3 | 4.8 | 9 |
| 18 (24/32) | 1 x 0.75 | 0.6 | 2.5 | 7.2 | 12.4 |
| 17 (32/32) | 1 x 1 | 0.6 | 2.6 | 9.6 | 15 |
Parameter Table – H07Z-K
| AWG | No. of Cores x Nominal Cross Sectional Area (mm²) | Nominal Thickness of Insulation (mm) | Nominal Overall Diameter (mm) | Nominal Copper Weight (kg/km) | Nominal Weight (kg/km) |
|---|---|---|---|---|---|
| 16 (30/30) | 1 x 1.5 | 0.7 | 3.5 | 14.4 | 24 |
| 14 (50/30) | 1 x 2.5 | 0.8 | 4 | 24 | 35 |
| 12 (56/28) | 1 x 4 | 0.8 | 4.8 | 38 | 51 |
| 10 (84/28) | 1 x 6 | 0.8 | 6 | 58 | 71 |
| 8 (80/26) | 1 x 10 | 1.0 | 6.7 | 96 | 118 |
| 6 (128/26) | 1 x 16 | 1.0 | 8.2 | 154 | 180 |
| 4 (200/26) | 1 x 25 | 1.2 | 10.2 | 240 | 278 |
| 2 (280/26) | 1 x 35 | 1.2 | 11.5 | 336 | 375 |
| 1 (400/26) | 1 x 50 | 1.4 | 13.6 | 480 | 560 |
| 2/0 (356/24) | 1 x 70 | 1.4 | 16 | 672 | 780 |
| 3/0 (485/24) | 1 x 95 | 1.6 | 18.4 | 912 | 952 |
| 4/0 (614/24) | 1 x 120 | 1.6 | 20.3 | 1152 | 1200 |
| 300 MCM (765/24) | 1 x 150 | 1.8 | 22.7 | 1440 | 1505 |
| 350 MCM (944/24) | 1 x 185 | 2.0 | 25.3 | 1776 | 1845 |
| 500 MCM (1225/24) | 1 x 240 | 2.2 | 28.3 | 2304 | 2400 |
Note: All values are as provided in the source specification. Actual dimensions and weights may vary within standard manufacturing tolerances.
Standards & Compliance
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<HAR> HD 22.9 S2
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VDE-0282 Part-9
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BS 7211
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IEC 60754-2
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EN 50267
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VDE 0482-267
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CE Low Voltage Directive 73/23/EEC and 93/68/EEC
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ROHS Compliant
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Flame Retardant: EN 50265-2-1, IEC 60332.1
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Smoke Density: EN 50268 / IEC 61034
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Corrosiveness of Combustion Gases: EN 50267-2-2, IEC 60754-2
Ordering Information
To request a quote or place an order, please provide the following information:
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Product Type: H05Z-K or H07Z-K
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Voltage Rating: 300/500V (H05Z-K) or 450/750V (H07Z-K)
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Conductor Size: e.g., 1 x 0.5 mm², 1 x 1.5 mm², 1 x 240 mm²
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Conductor: Fine bare copper strands, Class 5
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Insulation: Cross-link polyolefin EI5
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Quantity: Total length in meters
