Can we use RCCB instead of MCB?

Many people use MCB rather than using RCCB because in earlier times, MCB was the only option which was available. Thus, many people rely on it rather than RCCB. In the case of RCCB, the fault zone of the electrical circuit can be easily identified. When there is a fault in the circuit, the MCB trips off.

What is 2 pole RCCB?

Classification of RCCB 2 Pole RCCB: This is used in case of a single-phase supply connection that has only a live and a neutral wire. 4 Pole RCCB: This is used in case of a three-phase supply connection. RCCB is therefore extremely important in providing real time protection for circuits.

Can RCCB work without neutral?

You can follow the same document for the three-phase connection without neutral. >> If you are using the Acti9 RCCB range, you don’t need to add the resistor with iID Acti9 RCCB. You can directly connect phase 3 in 3 poles of RCCB (without neutral).

Where is RCCB installed?

RCCB inside Distribution Board: RCCBs are connected parallel to the MCBs inside distribution boards. The neutral connection is done to the neutral links & phase is connected in parallel with MCB as the MCB offers protection against overload and short circuit, and RCCB offers the protection against earth leakage.

How do I connect RCCB without neutral?

If you are using Acti9 range RCCB, You don’t need to add the resistor with iID Acti9 RCCB. You can directly connect the 3 phase on 3 poles of RCCB (without neutral). >> If you are using the Multi9 ID range RCCB, we need to add a resistance with specific resistance values to be compliant with 380-415V.

Is RCCB bidirectional?

Voltage Sensing based Earth Leakage Circuit Breaker: ELCB or Earth Leakage Circuit Breaker works on the principle of Voltage Sensing. The voltage is measured between these 2 terminals which are observed as ‘0’ in an ideal case.

Is MCB bidirectional?

Yes the circuit breakers are are bi-directional, and they are fine to use on DC provided that they are appropriately de-rated.