39120 0031000

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Single Conductor Cables (Hook-Up Wire)

Single conductor cables, also known as hook-up wire, are most commonly used in the electronic and electrical industries. These cables are composed of one or more insulated conductors, usually of tinned copper, aluminum, or other conductive metals, twisted together and encased in a plastic sheathing.

The 39120 0031000 designation is an example of a single conductor cable used for many low-voltage projects. It has a conductor temperature rating of 300°C, a voltage rating of 300 volta and is insulated with a gray polyvinyl chloride (PVC) material. Due to its flexible construction, it is often used in circuits of varying amperage, ranging from 10–14 AWG.

This type of cable is designed for indoor low voltage applications, including power and control wiring. It is primarily used for connections between components on a printed circuit board, as well as wiring houses and other commercial spaces.

Application Field

Single conductor cables are suitable for any AC rated up to 300 volts and power applications requiring up to 30 Amps. It is commonly used in any application where stranded conductors are preferred and where mechanical flexibility is necessary. Areas of use include consumer electronics, industrial automation, audio equipment, instrumentation and control and many other areas. It is also ideal for low-voltage lighting and for wiring in automotive applications, sensitive electronics, and telecommunications.

Working Principle

Single conductor wires are insulated with a sheath material surrounding a single or groups of wires. The insulation helps minimize electrical resistance, which is desirable in any cable installation. Insulation also helps to protect against shock and other electrical hazards. Depending on the specific product, wire insulation can be as low as 10–15 mils (0.10–0.15 mm) up to 50 mils (0.50 mm). The insulation materials used may vary from polyvinyl chloride (PVC) to polyurethane (PU).

When selecting single conductor cable, particular attention has to be paid to the voltage and current ratings. Voltage rating is the value of the maximum allowable voltage, and current rating is the value of maximum continuous current that the cable can take without risking damage. It is also important to ensure that the appropriate materials are chosen for installation in various environmental conditions. For example, a cable that is UL-listed may be suitable for an indoor application, whereas a product that is CSA approved may be better suited for outside weather conditions or wet locations.

Single conductor cables can provide superior performance, safety, and reliability when used properly. Its superior insulation also provides added protection against short circuits, minimizing the possibility of fire or electrical shock. Regardless of the intended application, it is essential to choose the right cable that meets the project\'s requirements and safety standards.

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