**MCB 20 Ampere 3 Phase: Understanding the Wattage**

When dealing with electrical circuits, it's essential to understand the relationship between the ampere rating of a circuit breaker, such as an MCB (Miniature Circuit Breaker), and the wattage it can handle. In this article, we'll explore the MCB 20 ampere 3 phase and calculate its corresponding wattage.

**What is an MCB?**

An MCB, or Miniature Circuit Breaker, is a type of electrical protection device designed to protect electrical circuits from overcurrent, overload, and short-circuit faults. MCBs are commonly used in residential, commercial, and industrial applications.

**MCB 20 Ampere 3 Phase: What Does it Mean?**

A 20 ampere MCB 3 phase is designed to handle a maximum current of 20 amperes per phase in a three-phase electrical circuit. This means the MCB can handle a total current of 60 amperes (20A x 3 phases).

**Calculating the Wattage**

To calculate the wattage that an MCB 20 ampere 3 phase can handle, we need to know the voltage of the electrical circuit. Let's assume a standard three-phase voltage of 380/415 volts.

Using the formula:

Wattage (W) = Voltage (V) x Current (I) x 1.732 (for 3-phase circuits)

W = 380V x 60A x 1.732 W ≈ 38,432 watts

**MCB 20 Ampere 3 Phase: Wattage Capacity**

Based on the calculation above, an MCB 20 ampere 3 phase can handle a maximum wattage of approximately **38,432 watts**. This means that the MCB can protect electrical circuits with a maximum power rating of 38.4 kilowatts (kW).

**Conclusion**

In conclusion, an MCB 20 ampere 3 phase is designed to handle a maximum current of 20 amperes per phase and a total current of 60 amperes. With a standard three-phase voltage of 380/415 volts, the MCB can handle a maximum wattage of approximately 38,432 watts or 38.4 kilowatts. Understanding the wattage capacity of an MCB is crucial in ensuring the safe and efficient operation of electrical circuits.