Circuit Breakers today are no longer simple switching and protecting devices with ON/OFF and trip indications. Users today are looking at circuit breakers as a device, which integrates switching, protection, metering and power management including quality of power from remote locations. Modern power systems are also characterized by the methods used to network circuit breakers - both with each other and with other components.

Siemens low voltage HRC fuses of BS type have been developed for industrial applications. Due to the special design, they provide high rupturing capacity combined with low temperature rise under normal load conditions. The quick acting characteristics of the fuses ensure that under the worst fault conditions, cut off occurs before the peak value of fault current is reached. This ultimately reduces the electromagnetic stress and fire risk, thus avoiding premature failure of the downstream equipment

Today, the economic success of industrial and infrastructure projects more than ever depends on the power supply – a key aspect for availability, performance and productivity, and a lever to boost overall economic efficiency. That’s why choosing the right circuit breakers is so crucial to keep expenses down while, at the same time, optimize performance.

3RP15 electronic timers can be used for all delayed switching applications in control, starting and protection circuits. They are ideal for use in application like machine tools, material handling, process control and motor control. With multifunction timer, you can configure the same timer as per your application need. Thus one timer is suited for many applications (refer timing diagram)

Siemens 3K Superswitch SDFs are used as short circuit, and overload protection device with fuses and main controls switches in industrial switchboards as well as residential and commercial buildings’ switchboards. ƒ The switch is also available in Switch Disconnector versions, it ensures making and breaking of the specified rated current under load and without load. At the same time, they are used for safety isolating function as isolation device in various low-voltage circuits. ƒ Superswitch conforms to IEC 60947-1, IEC 60947-3 and IS 13947-3. Superswitch has a very high life compared to the contemporary products offered today. ƒ Superswitch 3KL8 is applicable for protecting, switching Motor feeders particularly as the complete range is Type-2 Coordinated.

3KA8 Switch Disconnectors are designed to handle wide ranges of application up to 690V 50Hz AC. 3KA8 can be used as a Main Isolator Switch for Inductive Loads, small motor loads, mixed loads and Power distribution application for heating, lighting applications etc. This also can be used as an emergency switch as the same can be padlocked in off position, to facilitate safe working downstream in power-off condition. In series configuration, these Switches can also be used as Isolators in DC systems up to 440V

The different versions of 3VL MCCB are suitable for the following applications -

• Incoming and outgoing circuit breakers in power distribution applications.

• Switching and protection devices for motors, transformers, generators, capacitors, busbars and cables