• 1

    Hey, what's up, Guys! Akarsh here from CETech.

    Electricity is one of the most basic needs nowadays. Whether in a city or in a remote village, Everyone uses electricity for one purpose or another. In fact, the lifestyle that we have today is totally dependent on electricity. We are surrounded by appliances that make our life easier but they are nothing without electricity. So electricity is an important part of our lives nowadays. But it can be dangerous and if not handled properly, it can be life-threatening too. There are cases where we see that some people died due to electrocution or a fire broke out in a building due to a short circuit resulting in some people losing their lives. These kinds of mishaps can be avoided by taking small precautionary measures. One of which we are going to discuss here today.

    The device that we have today with us is a PRCD Adaptor named Life Savior from Havells. It is basically an adaptor that works on the principle of RCCB/RCD. It is a great device and a must to have with your appliances nowadays.

    So if you are interested in this device and want to have some details about it, then read this article till the end.

  • 2
    Get the best SMT Jobs for your projects

    You must check out JLCPCB for ordering PCBs online for cheap!

    You can also get good quality SMT Assemblies from JLCPCB with Assembly Prices starting at an 8$ setup fee and $0.0017 assembly fee per joint. You will get a discount on shipping on your first order. You just need to upload your Gerber, BOM&CPL files to get an instant quote on PCB, components, and assembly. A DFM analysis is generated after you order the boards, allowing you to spot potential mistakes before it goes into production. You can also track order status in real-time and can get your products in your hands as fast as one week.

  • 3
    About RCCB/RCD

    A residual-current device (RCD), residual-current circuit breaker (RCCB), or ground fault circuit interrupter (GFCI) is an electrical safety device that quickly breaks an electrical circuit whenever it detects a leakage current to the ground which is greater than its threshold. It is to protect equipment and to reduce the risk of serious harm from an ongoing electric shock. Injury may still occur in some cases, for example, if a human receives a brief shock before the electrical circuit is isolated, falls after receiving a shock, or if the person touches both conductors at the same time.


    In an ideal current the current flowing through the live wire ought to be equal to the current returning through the neutral wire. This is the principle on which the Residual Current Circuit Breaker works.In case an earth fault occurs, the current is able to find a way to the Earth via accidental means like touching a live wire. Due to this, the returning current via the neutral wire is reduced. The difference between the two currents is called Residual Current. RCCB is outlined in such a manner that it ceaselessly senses and compares any contrasts (residual current value) in the current between the neutral and live wires. Even a small change between the values would trigger the Residual Current Circuit Breaker and it will disconnect the circuit.


    There are two types of RCCBs:-

    1) 2 Pole RCCB: It is utilized in a single-phase supply that only contains a neutral wire and a live wire. It has two ends and at those ends, the neutral wire and live wire are connected. With the help of a rotary switch, you can switch the RCCB on and off. It also has a test button that assists in periodically testing the functionality of the RCCB.

    2) 4 Pole RCCB: It is utilized in a 3-phase supply connection that includes a neutral wire and 3-phase wires. Again this has two ends where both the neutral wire and 3 phase wires are connected. This is the only difference between the 2 and 4-pole RCCB, the rest of the work is similar.