RCCB or Residual Current Circuit Breakers is an essential safety measure for electric circuits. It measures the current and disconnects the circuit whenever a fault occurs.
Thus, it saves the circuits from short circuits or major damage. On the other hand, it protects you from shock caused by direct contact with faulty circuits.
Anyways, whether you’re a homeowner or an industry worker, knowledge about RCCB is essential for your day-to-day life. In this article, you can learn about the different types of RCCBs in India.
We will mention the types with their features and specifications. Further, we will discuss the usage and applications of each of the types. Also, in the end, you will know the essential things to consider while buying an RCCB.
Different Types of Residual Current Circuit Breakers
Depending on various factors, RCCBs are classified into several types. Each of them has a significant purpose. Here, we will highlight these types. Let’s proceed.
Based on the number of poles
RCCBs can also be categorised as per the number of poles they have. The variations are:
2-Pole RCCB:
It is a single device with two contacts. It is used to protect against shock and overload in a single-phase circuit by detecting any current imbalance.
4-Pole RCCB:
It is another type of device that has four contacts. The ends are connected with a neutral wire and a 3-phase wire in a 3-phase supply connection. The work process is almost the same as that of 2-pole RCCB.
Usages and Applications of Different Types of RCCB
You can opt for 2 pole RCCBs for light domestic appliances with single-phase connections. It is often used in domestic supplies or residential appliances which need little electricity, like TV, lights, fan, and refrigerators.
For 3-phase supplies in offices, homes, and other areas, 4-pole RCCB must be used. It is used to power big induction motors and other heavy loads in commercial and industrial buildings.
Both types can be used as main switches or MCBs in various areas like residential, industrial, or retail spaces.
So, depending on the current level, the intensity of loads, and other factors, different types of RCCB are used.
Differences between RCCB, RCBO, RCD, and RCB
You have learned about the different types of RCCBs. But do you know you can mistake other circuit breakers as an RCCB? To avoid this confusion, let’s discuss the differences between various circuit breakers, including RCCB, RCBO, RCD, and RCB.
RCCB or residual current circuit breaker senses current and disconnects any low-voltage circuit when a fault occurs. It mainly protects people from the high impacts of electric shocks.
RCBO or Residual Current Breaker with Over Current is used in applications that need protection against short circuits and overload.
RCB, or Residual Circuit Breaker, is designed to disconnect current from an electrical line to prevent electrocution.
RCD or Residual Current Device saves people from electrical shocks. Sometimes, people consider RCCBs as RCDs.
Things to Consider while Buying an RCCB
Only learning the differences between the types is not enough. Multiple other factors are associated with RCCB. Now, if you’re planning to buy an RCCB, you need to keep these points in mind. Some of the points are mentioned below.
- Make sure the RCCB you buy is of the right rating needed for the purpose.
- Although you have an MCB, you should opt for an RCCB as they are more advanced to protect you from electrical hazards.
- RCBO is a combination of MCB (Miniature Circuit Breaker) and RCCB.
- Both RCD and RCBO are usually found in a fuse box, referred to as a breaker panel or consumer unit.
- RCCB costs are higher than MCB.
Wrapping it up
The time is gone when a standard AC RCCB can serve all purposes. Nowadays, you can opt for various types of RCCBs so that life becomes easier. We have discussed the details related to various kinds of RCCBs that are commonly used. Let us know if you need to know more and check out a wide range of RCCBs at the L&T-SuFin site today.