**MCB 3 Phase 60 Ampere: How Many Watts?**

### Introduction

In electrical circuits, it's essential to understand the relationship between the current rating of a circuit breaker, such as an MCB (Miniature Circuit Breaker), and the power it can handle. In this article, we'll explore the calculation to determine the wattage capacity of an MCB 3 phase 60 ampere.

### Understanding MCB Ratings

An MCB is a type of circuit breaker that protects electrical circuits from overload and short-circuit faults. The rating of an MCB is typically denoted in amperes (A) and indicates the maximum current it can handle without tripping.

In the case of a 3-phase MCB, the rating is usually specified in amperes per phase. For example, a 3-phase 60 ampere MCB can handle 60 amperes per phase.

### Calculating Wattage Capacity

To calculate the wattage capacity of an MCB, we need to know the voltage of the circuit. Assuming a 3-phase circuit with a line-to-line voltage of 400V (which is a common voltage rating for industrial and commercial applications), we can use the following formula:

**Wattage Capacity (W) = √3 x Line Voltage (V) x Current Rating (A)**

Where:

- √3 = 1.732 (a constant for 3-phase circuits)
- Line Voltage (V) = 400V
- Current Rating (A) = 60A per phase

Plugging in the values, we get:

**W = 1.732 x 400V x 60A = 43,272 Watts**

### Conclusion

Therefore, an MCB 3 phase 60 ampere can handle a maximum power of approximately **43,272 watts**. It's essential to note that this calculation assumes a pure resistive load and doesn't take into account other factors that may affect the MCB's performance, such as power factor, harmonics, and ambient temperature.

When selecting an MCB for a specific application, it's crucial to consider the actual load requirements and consult the manufacturer's specifications to ensure the chosen MCB can handle the required power safely and efficiently.