A Change Over Switch (COS) is a crucial component in power distribution systems. Although the name might not be widely recognized, COS plays a vital role. Want to know more about Change Over Switches? Let’s dive into the details.

What is a Change Over Switch (COS)?

A Change Over Switch (COS) is a switch used to transfer electrical power from the main network (PLN) to a backup network such as a generator or genset within an electrical circuit or system. COS is essential to ensure the continuity of power supply during disruptions in the main power source.

How Does a Change Over Switch Work?

A Change Over Switch works by shifting the electrical connection from one path to another, either manually or automatically. When a power outage occurs in the main source, the COS will immediately switch to the backup power source, ensuring that equipment continues to operate without interruption.

3 Types of Change Over Switches

1. Manual Transfer Switch (Manual COS)

The Manual Transfer Switch is the simplest type of Change Over Switch. As the name suggests, this type of COS is operated manually. During a power outage, users must turn or move the lever/handle of the COS to switch the power source. While easy to use, this type requires human intervention, resulting in a slower response time. Manual COS is typically used in small-scale electrical installations, such as residential homes or small commercial buildings.

An example of a Manual COS is the Socomec Sircover COS. This product can perform manual switching to transfer loads from the main power source to a backup source in low-voltage power circuits. Socomec Sircover can handle currents from 125 A to 3200 A, offering durable performance for reliable power availability.

2. Motorised Transfer Switch (Motorized COS)

Unlike the manual COS, the Motorised Transfer Switch uses a motor to switch the power source. Users can control the operation of the motorized COS remotely using buttons or switches connected to the motor. This type is typically used in locations requiring faster and more efficient power switching, such as factories or industrial facilities.

An example of a Motorized COS available on the market is the Socomec ATyS r, a load transfer switch that can be operated remotely for capacities from 125 A to 3200 A. This device is controlled remotely by a switch controller to transfer the power source.

3. Automatic Transfer Switch (Automatic COS)

The Automatic Transfer Switch is the most advanced and automated type of COS. This type automatically detects faults in the main power source and immediately switches to the backup power source without human intervention. When the main power source is restored, the switch will return the power source to its original position. Automatic Transfer Switches are commonly used in critical areas such as hospitals, data centers, or facilities where downtime is not permissible.

You can find these automatic COS models in Socomec's ATyS t M and ATyS g M series. Both series have operating capacities ranging from 40 to 160 Amperes. These switches provide quick responses during load transfer in low-voltage installations with secure programming systems.

Benefits of Using a Change Over Switch

With a Change Over Switch, you can ensure that the power supply remains uninterrupted even during main power outages. This device also helps prevent damage to equipment caused by sudden power disruptions. Additionally, COS reduces downtime and maintains smooth operations, especially in critical facilities such as hospitals, factories, and data centers.

Powered by Froala Editor

Use of Change Over Switches in Industry

COS is used in hospitals to maintain the operation of crucial medical equipment during power outages. Similarly, in factories and industries, COS ensures that production machines continue to operate without disruption, maintaining productivity. In data centers, COS helps to keep server operations running, thus preventing data loss.

Considerations When Choosing a Change Over Switch

When selecting a COS, factors to consider include power capacity, the type of electrical load to be transferred, and the speed and method of power transfer. Choosing the right COS should be based on specific needs to ensure appropriate capacity.

Each type of COS described above has its own advantages and disadvantages, which can be matched to your requirements. Socomec offers a range of Change Over Switches with complete device capacities and additional accessories for installation and adjustment.

The Socomec Manual COS Sircover, Motorized COS ATyS r, and Automatic COS ATyS t M and ATyS g M are reliable and tested Change Over Switches that meet safety standards.

A Change Over Switch is essential for maintaining reliable and safe power supply. By selecting and installing a COS from Socomec, you can ensure efficient, uninterrupted, and durable operation. Get the complete range of Socomec Change Over Switches only at Mitra Cipta Hardi Elektrindo and Hokione, your official distributor for electrical and mechanical tools.

Powered by Froala Editor