"Why Use Sigma Compact Switch?"

#sigmaanlatiyor : Compact Switches

What should be considered when using a Compact Switch?

Excessive currents generated in the electrical system can cause destructive damage to the loads and cables connected to the electrical system. We can mention some important situations to be considered for compact switches, which are the leading protection elements against overcurrents, in other words, thermal magnetic circuit breakers. First of all, as a result of the detailed analysis of the electrical system, the following technical characteristics of the Compact Switch should be determined;

• Rated operating current
• Expected short-circuit current
• Number of poles
• Rated operating voltage
• Characteristic features of the load
• Ambient temperature

The structural characteristics of the switch, the technical characteristics of which are determined, determine how long the switch will be used.

At the beginning of the structural features is the contact material of the compact switch. The contacts of compact switches are obtained as a result of alloying various metal materials. The proportions of materials used in the alloy determine the quality of the contact structure. For example, a contact should have a high temperature resistance and a low resistance. The characteristics of the contact structure are determined by the proportions of the materials used in the alloy.

The housing material of compact switches must consist of materials that can show high resistance to mechanical and thermal stresses. Because very high temperatures and pressure occur during the formation of short circuit currents, the possibility of burning and explosion of the switch to the body material used must be eliminated.

Another issue to be considered is the dimensions of the compact switch. The fact that switches with small dimensions save space in the electrical panel will facilitate the applications.

Another feature that provides a significant service life to the compact switch is the limiter feature. This feature is provided by the contact structure of the switches, which is created in a special form. With the limiter feature, in case of any short circuit, the switch contacts are rapidly separated from each other before the short-circuit currents reach their expected value, so that the switch is not exposed to high currents, high heat and high pressure.

Why Use Sigma Compact Switch?

Sigma Compact Switches, which are produced in Turkey in accordance with international standards, provide high performance solutions to users with both material quality and wide product selection. The body and cover material used in Sigma Compact Switches is made of 960 degree heat-resistant non-combustible material called BMC (Bulk Moulding Compound). BMC material, which has a very high insulation property, eliminates the risk of burning and explosion that may occur in switches with its ability to withstand temperatures of 160 degrees continuously. The contact material of Sigma Kompat Switches is the result of our long R & D studies; It consists of alloys of silver (Ag), wolfram (W), Nickel (Ni) chemical elements in the most appropriate proportions to ensure low resistance, heat and impact resistance. Sigma compact switches offer flexible solutions in a variety of applications with their compact size and wide operating temperature range from -20 to +60 degrees. In addition, Sigma Compact Switches reduce mechanical and dynamic stresses by upgrading short-circuit breakout technology thanks to their limiter feature.

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