Circuit Breakers

A circuit breaker is a mechanical device that is designed to protect an electrical circuit from damage caused by excessive current or short circuit. It is an important safety device that is used in electrical distribution systems to protect against electrical fires and damage to electrical equipment.

Circuit breakers work by automatically opening or breaking the circuit when the current exceeds a predetermined threshold. This threshold is set by the current rating of the circuit breaker and can be adjusted based on the specific requirements of the electrical system.

When the current in the circuit exceeds the current rating of the circuit breaker, the mechanism inside the breaker trips, and the contacts open to interrupt the current flow. This interrupts the flow of electricity and prevents damage to the circuit and equipment.

Circuit breakers are available in different types and ratings, depending on the application and the level of protection required. Some types of circuit breakers include thermal, magnetic, and combination circuit breakers.

Thermal circuit breakers work by using a bimetallic strip that bends and opens the contacts when the current exceeds a set temperature. Magnetic circuit breakers, on the other hand, use an electromagnet to trip the contacts when the current exceeds a set value.

Overall, circuit breakers are an important safety device in electrical distribution systems and help to protect against electrical fires, damage to equipment, and personal injury.

ELCBs, MCCBs, and MCBs are all types of circuit breakers used in electrical systems to protect against overcurrent and short circuits, but they differ in their specific applications and characteristics.

1. ELCB (Earth Leakage Circuit Breaker): ELCBs are designed to protect against electrical shock caused by earth leakage. They detect a difference in the current between the live and neutral conductors and trip the circuit when the current exceeds a certain threshold, indicating a fault to ground. ELCBs are commonly used in residential and commercial applications to protect against electrical shock and to ensure electrical safety.

2. MCCB (Molded Case Circuit Breaker): MCCBs are circuit breakers that are designed for higher current applications, typically up to 1000A or more. They offer adjustable trip settings, making them suitable for a wide range of applications, and are commonly used in industrial and commercial applications where high current protection is required.

3. MCB (Miniature Circuit Breaker): MCBs are small circuit breakers designed for low current applications, typically up to 125A. They offer fixed trip settings and are commonly used in residential and commercial applications to protect against overcurrent and short circuits.

In summary, ELCBs are used to protect against electrical shock caused by earth leakage, MCCBs are used for high current applications in industrial and commercial settings, and MCBs are used for low current applications in residential and commercial settings.

If you’re looking for a reliable circuit breakers for your electrical system, Malta Technical Services has got you covered. Contact us today to learn more about our high-quality products.