CYKY 5x10 | Copper power cable | CYKY-L 5*10 | 1m | black | 4779026554397

CYKY 5×10 mm² copper power cable – CYKY-L, 5 cores, black, sold by the metre

CYKY 5×10 mm² copper power cable is intended for electrical power transmission in fixed electrical installations. The cable consists of five copper conductors, each with a nominal cross-sectional area of 10 mm². It may be used for building power supplies, distribution boards, three-phase loads, workshop equipment and other power circuits where this cable type is specified by the electrical design and engineering calculations.

• Five copper conductors – suitable construction for three-phase circuits with neutral and protective conductors.
• 10 mm² cross-section per conductor – intended for power transmission where this cross-section is justified by electrical calculations.
• Copper conductors – good electrical conductivity and lower conductor resistance compared with an aluminium conductor of the same cross-section.
• Reliable electrical connections – copper is widely compatible with electrical equipment terminals and cable lugs.
• Black outer sheath – protects the internal conductors according to the specific cable construction.
• Sold by the metre – allows the required length to be selected for a particular cable route.
• Suitable for fixed electrical installations – for incoming supplies, distribution circuits and power loads.

• Electrical incoming supplies for residential and commercial buildings – where a 5×10 mm² copper cable is specified by the design.
• Distribution board interconnections – between the main and secondary distribution boards.
• Power supply to three-phase equipment – where three phases, a neutral and a protective conductor are required.
• Workshops and production premises – for supplying machines, compressors, pumps or other equipment where supported by calculations.
• AC side of photovoltaic systems – in AC circuits between the inverter and distribution equipment, where specified by the project.
• Electric vehicle charging systems – for three-phase supply lines where the conductor size is selected according to charger power and cable route.
• Generator and backup power systems – for fixed power circuits.
• Pump rooms, boiler rooms and technical rooms – for supplying power equipment or local distribution boards.
• Automation and control panels – for incoming supply or power circuits.
• Electrical refurbishment projects – when replacing or installing new fixed power circuits.

For example, a three-phase supply line needs to be installed from the main building distribution board to a separate workshop distribution board. The designer or electrician calculates the circuit load, length, voltage drop, installation method, ambient temperature and protective device.

If the calculations confirm that a 5×10 mm² copper cable is suitable, three conductors may be used for the phases, one for the neutral conductor and one for the protective PE conductor. Final connection must be made according to conductor colour identification, the electrical diagram and the requirements of the connected equipment.

Residential house: may be used for an incoming supply, garage, outbuilding or separate distribution board supply.

Workshop: suitable for the supply line of three-phase equipment, compressors, machines or a local distribution board where the cross-section is justified by calculations.

Commercial premises: may be used in fixed power distribution circuits.

Photovoltaic system: may be used on the AC side between the inverter and distribution equipment where specified in the project.

EV charging station: may be used for a three-phase supply line, but the conductor cross-section must be calculated according to power, circuit length and installation conditions.

• 5×10 mm² must not be treated as one 50 mm² conductor.
• The cable must not be selected solely according to the circuit breaker rating.
• Equipment power alone must not be used without calculating the actual current and operating mode.
• Voltage drop must not be ignored on long circuits.
• A single current rating must not be applied to all installation methods.
• The cable must not be installed outdoors or underground unless this is confirmed by the manufacturer's documentation.
• A 10 mm² conductor must not be connected to an undersized terminal.
• Correction factors for cable grouping and ambient temperature must not be ignored.

The permissible cable load cannot be determined solely from the 5×10 mm² designation. It depends on the cable construction, insulation, installation method, ambient temperature, grouping, circuit length, voltage drop, short-circuit conditions and the protective device.

• Check the calculated load current.
• Evaluate the installation method – in air, conduit, trunking, building structure or another installation method.
• Calculate the voltage drop, particularly for longer circuits.
• Check the rated current and characteristic of the protective device.
• Evaluate short-circuit thermal withstand.
• Check the permissible conductor size of the connection terminals.
• Follow the specific manufacturer's technical data and the electrical design.
• Installation must be carried out by a qualified electrician.

• Disconnect the electrical supply before installation and secure the circuit against accidental re-energisation.
• Do not damage the cable sheath during transport, pulling or fixing along the cable route.
• Observe the minimum bending radius specified by the particular manufacturer.
• Do not overtighten cable supports or damage the insulation.
• Prepare the conductors using suitable tools without cutting into the copper conductor.
• Use suitable cable lugs or ferrules where required by the conductor construction or connected equipment.
• Tighten terminals to the manufacturer's specified torque.
• Carry out the required electrical installation tests before energising.

Quick selection guide

Choose the CYKY 5×10 mm² copper cable when the electrical design specifies a five-core 10 mm² copper power cable for a fixed three-phase electrical circuit.

CYKY 5×10 mm² copper cable for three-phase power circuits

The CYKY 5×10 copper power cable is intended for fixed electrical installations requiring five 10 mm² copper conductors. It may be used for building incoming supplies, distribution boards, three-phase equipment, workshops, commercial premises, photovoltaic system AC circuits, EV charging systems and other power distribution circuits.

With five copper conductors, a 10 mm² conductor cross-section, a black outer sheath and sales by the metre, the cable can be adapted to electrical routes of different lengths. Final suitability for a particular load and installation location must be confirmed by electrical engineering calculations, the electrical design and the specific manufacturer's technical data.