Choosing the right cable for electric motors involves significant challenges, such as extreme temperatures and mechanical stresses. To ensure safety and efficiency, cables must be able to withstand these conditions without losing performance. RADOX® cables offer high thermal resistance and optimal current carrying capacity, ensuring reliability even in the most demanding scenarios.
Why Choose RADOX® Cables?
RADOX® cables are produced using a special cross-linking technology that prevents them from melting even when brought above the indicated class temperature. This means that exceeding the maximum temperature for short periods will not compromise the cable’s safety or operational efficiency. This feature is particularly appreciated by those who perform high-temperature processing (e.g., overmoulding of plastic material around the cable), but also in applications where short-term overload operation is possible.
By consulting diagram 2 in this article, we can see that the cable’s lifespan halves with every 10°C increase above the nominal limit, yet without causing immediate problems such as melting or fire, which are typical of cables made with lower-quality materials, like PVC, or with inferior manufacturing technologies.
Superior Performance in Critical Situations
A customer commissioned us for a custom project involving overmoulding with a technical polymer. In such cases, the cable is exposed for a few seconds to temperatures around 300°C, well above the 150°C typically tolerated in class F. In this scenario, a standard cable would melt immediately, whereas a RADOX® cable can withstand brief exposures without damage, ensuring greater safety and reliability.
This resistance made it possible to complete the overmoulding process and solved our customer’s issue.
Resistance to Current Peaks
RADOX® cables prove particularly advantageous in applications where sudden current spikes, and consequently temperature spikes, are frequent. These events can occur under various conditions: let’s take a simple example of a small stone in a coffee grinder, that is, when a foreign object temporarily impedes the motor’s normal operation, leading to a “locked rotor” condition. In such situations, the motor’s current draw can increase dramatically within seconds, for example, from a nominal value of 2 amperes to 10 amperes or more. This sudden current increase causes overheating which, if handled with a conventional cable, would involve risks such as melting of the insulation and permanent damage to the electrical system.
Thanks to their exceptional thermal and mechanical resistance, RADOX® cables ensure safe and reliable operation even under the harshest conditions. They are designed to withstand these current spikes without compromising their structural integrity until the circuit’s protection devices intervene. This feature not only enhances system safety but also reduces the risk of sudden interruptions and costly maintenance. Furthermore, the advanced material technology used in RADOX® cables allows them to withstand high external temperatures, vibrations, and critical environments, making them an ideal choice for industrial and automotive applications where reliability and high performance are crucial.
Sectors and Ideal Applications for RADOX® Cables
RADOX® cables are essential in many industrial sectors, as well as in automotive, aerospace, and generally in all applications where safety and heat resistance are vital factors.
A simple test to verify the superior properties of RADOX® cables compared to others consists of placing the tip of a soldering iron on the insulation and checking its condition: a conventional cable, for example made of PVC, will melt quickly, causing operational disruptions or electrical hazards. A RADOX® cable instead, thanks to its cross-linked structure, remains intact and functional even under these critical conditions.
Miotti as a Global Distribution Hub
If you need cables suitable for these applications, we are a Global Distribution Hub for RADOX® cables and have extensive stock availability. We guarantee efficient and reliable service, with deliveries within a week. Learn more about RADOX® solutions and our range of special cables by visiting our website or contacting us for a free consultation.
An Investment in Safety and Efficiency
Choosing RADOX® cables means investing in the safety, reliability, and longevity of your electrical system. Resistant to heat, capable of withstanding current spikes and high temperatures, they represent an optimal solution to ensure maximum performance even under the most critical conditions.
If you believe you’ve found the right solution for your systems, contact us.