4×50 Rubber Cable – Heavy Duty 4 Core 50mm2 Rubber Power Cable

The 4×50 rubber cable, also known as 4 core 50mm² rubber sheathed cable, is a heavy-duty flexible power cable designed for high-current transmission in harsh industrial environments. With excellent flexibility, mechanical strength, and resistance to oil, abrasion, UV, and extreme weather, this cable is widely used in mining, construction sites, generators, cranes, shipyards, and other demanding applications.

As a professional rubber cable manufacturer, we supply high-quality 4×50 rubber power cables that comply with international standards such as IEC, VDE, and BS. Our cables are engineered for reliability, long service life, and safe operation under continuous mechanical stress and environmental exposure.

What Is a 4×50 Rubber Cable?

A 4×50 rubber cable consists of:

• 4 flexible copper conductors

• Each conductor with a nominal cross-sectional area of 50 mm²

• Rubber insulation and a heavy-duty rubber outer sheath

This structure allows the cable to carry high electrical loads while maintaining excellent flexibility and durability. Compared with PVC cables, rubber cables offer superior performance in mobile and outdoor applications where vibration, bending, and environmental stress are common.

Construction Details

Conductor

• Material: Annealed copper

• Class: Class 5 flexible conductor (IEC 60228)

• Optional: Tinned copper for enhanced corrosion resistance

The finely stranded copper conductor ensures low electrical resistance, high current-carrying capacity, and excellent flexibility for repeated bending.

Insulation

• Material: EPR or EPDM rubber

• Color: Black or color-coded cores

• Properties:

• High dielectric strength

• Heat resistant

• Excellent aging performance

Inner Assembly

• Laid-up insulated cores

• Optional fillers for roundness and mechanical stability

Outer Sheath

• Material: Chloroprene rubber (CR) or equivalent

• Color: Black (custom colors available)

• Properties:

• Oil resistant

• Abrasion resistant

• UV and ozone resistant

• Flame retardant

Technical Specifications of 4×50 Rubber Cable

Standards and Certifications

Our 4×50 rubber cables can be manufactured according to the following standards:

• IEC 60245

• IEC 60502-1

• H07RN-F (design-based or equivalent)

• VDE 0282

• BS EN standards

• AS/NZS standards (upon request)

Third-party certifications such as CE, RoHS, and ISO are available depending on project requirements.

Applications of 4×50 Rubber Cable

The 4 core 50mm² rubber cable is designed for heavy-duty power transmission in environments where standard cables fail.

Typical Applications Include:

Mining & Tunneling

• Mining equipment

• Tunnel boring machines

• Underground power distribution

Construction Sites

• Temporary power supply

• Tower cranes and hoists

• Mobile distribution boards

Industrial Equipment

• Heavy machinery

• Compressors

• Welding machines

Power Generation

• Mobile generators

• Backup power systems

• Transformer connections

Marine & Ports

• Shipyards

• Dockside power systems

• Port cranes and handling equipment

Thanks to its robust rubber sheath, the 4×50 rubber cable performs reliably in environments exposed to oil, water, vibration, and mechanical impact.

Advantages of 4×50 Rubber Power Cable

High Current Capacity

The 50 mm² copper conductor allows safe transmission of high electrical loads with minimal voltage drop.

Superior Flexibility

Compared to XLPE or PVC cables, rubber cables maintain flexibility even at low temperatures, making them ideal for mobile applications.

Excellent Mechanical Protection

The thick rubber sheath provides outstanding resistance to:

• Abrasion

• Crushing

• Impact

• Bending fatigue

Environmental Resistance

• Oil and grease resistance

• UV and weather resistance

• Ozone resistance

• Moisture resistance

Long Service Life

Designed for continuous operation in harsh conditions, reducing downtime and replacement costs.

4×50 Rubber Cable vs PVC Power Cable

For demanding industrial environments, 4×50 rubber cable is the preferred choice.

Customization Options

We offer full customization for 4×50 rubber cables, including:

• Tinned copper conductors

• Special rubber compounds (heat-resistant / cold-resistant)

• Core identification by numbers or colors

• Green-yellow earth core (if required)

• Customized sheath color

• OEM printing on cable sheath

• Packing in coils or wooden drums

Quality Control and Testing

Every batch of 4×50 rubber cable undergoes strict quality inspections, including:

• Conductor resistance test

• Insulation resistance test

• High-voltage withstand test

• Sheath thickness measurement

• Flame retardancy test

• Visual and dimensional inspection

This ensures consistent quality and compliance with international standards.

Packaging and Delivery

• Packaging: Wooden drum or coil

• Drum length: Customized according to customer requirement

• Delivery time: Fast production with stable supply

• Export packing suitable for sea transport

Why Choose Us as Your 4×50 Rubber Cable Manufacturer?

• Direct factory supply

• Competitive pricing

• Stable quality and traceable materials

• Flexible MOQ for export projects

• Rich experience in industrial and power cable markets

• Professional support for specifications and selection

We work with distributors, EPC contractors, and industrial users worldwide.

Common Buyer Questions (FAQ)

Q1: Is 4×50 rubber cable suitable for outdoor use?
Yes. The rubber sheath offers excellent UV, weather, and moisture resistance.

Q2: Can this cable be used for generators?
Absolutely. 4×50 rubber cable is widely used for generator power connections due to its flexibility and durability.

Q3: What is the difference between H07RN-F 4×50 and standard rubber cable?
H07RN-F follows a specific European harmonized design. We can supply both H07RN-F compliant and IEC-based versions.

Q4: Can you provide a datasheet and test report?
Yes. Technical datasheets and test reports are available upon request.