Wires/Cables

Wires and Cables are essential components in electrical systems, control systems, and communication networks used across industrial facilities. They transmit power, carry signals, and connect electrical devices, control panels, sensors, motors, industrial robots, automated machinery, and data communication equipment. Each type of wire or cable has different characteristics, such as power cables that must support the required current and voltage, signal cables that need to reduce electrical noise, cables for electronic and communication devices, robot cables designed to withstand repeated bending or twisting, coaxial cables for specialized signal transmission, and industrial cables made to resist heat, oil, chemicals, moisture, or abrasion. Selecting the right wire or cable should not be based only on size or price. It is important to review voltage, current, number of cores, conductor material, insulation type, flexibility, bending radius, wiring method, and the actual operating environment so the system can operate continuously, reduce heat buildup, minimize signal interference, lower the risk of premature cable failure, and improve overall safety for operators and machinery.

Key Points When Selecting Wires/Cables

• Application type: Clearly separate power cables, signal cables, communication cables, control cables, and cables used for moving parts, because each type is designed for different electrical loads, signal requirements, and installation conditions.
• Voltage and current: Check the operating voltage, current, and conductor size against the load, cable run length, and installation method to reduce voltage drop, heat buildup, and the risk of using a cable beyond its rating.
• Number of cores and cable structure: Control applications may require multi-core cables to combine several signal circuits in one cable, while power applications must be selected according to the electrical system, phase, grounding requirements, and connection method.
• Conductor material: Copper offers high conductivity and is widely used for machinery, while aluminum may suit some applications that require lower weight or cost. Selection should follow electrical requirements and installation conditions.
• Insulation and outer sheath: PVC, PE, PUR, rubber, and special materials differ in flexibility, heat resistance, oil resistance, and chemical resistance. Choose based on the actual working environment, not only the cable size.
• Flexibility and bending radius: If the cable is installed in a cable carrier, robotic arm, or repeatedly moving machine, choose a cable designed for repeated bending, with a structure that reduces conductor breakage and supports the required bending radius.
• Noise protection: For communication or signal wiring near motors, inverters, or other noise sources, consider shielded cables, twisted-pair structures, and proper grounding methods.

Types of Wires and Cables Used in Industrial Applications

Wires and cables are available in many forms according to their function. In general, they consist of a conductor, such as copper or aluminum, insulation, an outer sheath, and in some cases shielding or reinforced structures. Power cables focus on supporting the proper current and voltage, while signal and communication cables prioritize signal stability, noise protection, and accurate data transmission.

Power Cables

Power cables transmit electrical energy to motors, machinery, control panels, and main electrical devices. The key point is to select a conductor size suitable for the actual operating current, voltage, ambient temperature, wiring method, and relevant safety standards. If the cable size is too small, heat may build up, insulation may deteriorate faster, or protection devices may trip more often than expected.

• Motors and machinery: Check starting current, continuous operating current, and the conditions around the installation point, such as heat, oil, or vibration.
• Control panels: Select cables that are easy to organize, clearly identify circuits by color or size, and can be terminated properly with terminals or panel components.
• Long-distance wiring: Consider voltage drop and energy loss. A larger conductor may be required to maintain system stability.

Signal and Control Cables

Signal and control cables are used to connect sensors, switches, relays, PLCs, measuring devices, and other control equipment. Important factors include the number of cores, signal grouping, flexibility, and noise protection, especially in areas near motors, inverters, or high-power equipment. Proper cable selection helps reduce unstable readings, incorrect commands, and long troubleshooting time.

Data Communication Cables

Data communication cables are used in network systems, communication equipment, cameras, barcode readers, measuring instruments, and automation systems that require continuous data transmission. Check the cable type, data transmission rate, cable length, compatible connectors, and installation conditions. In high-noise areas, select a cable structure with suitable noise protection to maintain stable communication.

Robot and Moving-Part Cables

Robot cables and cables for moving parts are designed to withstand repeated bending, twisting, or continuous movement. They are suitable for robotic arms, cable carriers, automated machinery, and moving equipment. Key points include the supported bending cycle, bending radius, cable weight, abrasion resistance, and compatibility with the surrounding machine environment.

Installation and Maintenance for Longer Cable Life

Proper cable installation helps reduce machine downtime, prevent equipment damage, and make system inspection easier. Plan the wiring route before installation, separate power and signal cables when needed, use secure cable fixing accessories, and avoid areas with excessive heat, abrasion, or cable tension.

Precautions During Installation

Avoid pulling the cable beyond the specified tensile force, bending it below the minimum bending radius, placing it near heat sources without protection, or bundling power and signal cables without considering noise interference. Also check cable termination, terminal tightening, and cable fixing. Loose connections may cause heat, high resistance, or intermittent signal loss.

For areas with oil, moisture, chemicals, metal chips, or high abrasion, choose insulation and sheath materials suitable for the environment. Use accessories such as cable glands, conduits, cable trays, or protective sleeves to reduce external damage and improve safety.

Inspection After Use

After installation, periodically inspect fixing points, cable connections, insulation condition, heat marks, discoloration, cracks, and abrasion, especially on machines with strong vibration or repeated movement. Recording cable locations, part numbers, and operating conditions helps make future replacement and maintenance faster.

If a cable becomes unusually hot, signals drop intermittently, machinery stops unexpectedly, or insulation starts to deteriorate, inspect the cable, connection points, protection devices, and connected load together. The issue may come from incorrect cable selection, improper installation, or an environment that is harsher than originally expected.

How MISUMI Helps You Select Wires and Cables

Quality

MISUMI helps users compare wires and cables by important specifications, such as cable type, conductor size, number of cores, insulation material, length, color, environmental resistance, and suitability for moving applications. This allows engineers to select cables that match actual worksite conditions, reduce the risk of choosing the wrong product, and maintain the quality of electrical and control systems.

For applications requiring high continuity, such as automation systems, conveyors, parts manufacturing machines, or robotic arms, selecting the correct cable from the beginning helps reduce the risk of electrical noise, internal conductor breakage, early insulation deterioration, or unexpected machine downtime.

Cost

Selecting the right wire or cable helps reduce hidden costs from maintenance, frequent cable replacement, machine downtime, or unnecessary over-spec purchasing. Users can review the properties required for the actual application and choose products that balance price, service life, and system safety.

Purchasing from a source with many cable options also helps procurement teams manage stock more easily, reduce repeated coordination, and avoid errors when ordering cables with similar specifications that cannot actually be used interchangeably.

Time

Searching products by technical conditions helps engineers and purchasing teams select wires and cables more quickly, whether by cable type, size, number of cores, material, length, or required special properties. This reduces repeated specification checks and helps maintenance or machine assembly proceed according to plan.

When cables need to be replaced during maintenance, clear product information and comparison conditions help teams make decisions faster, reduce machine downtime, and support continuous production.