5SL6640-6BB SIEMENS

The 5SL6640-6BB is a miniature circuit breaker (MCB) manufactured by Siemens, designed for reliable circuit protection in residential, commercial, and industrial applications. This MCB is a 3+N-pole device, meaning it has three poles for the phase conductors and one pole for the neutral conductor, ensuring comprehensive protection against overloads and short circuits. It has a B-characteristic tripping curve, making it suitable for applications with low inrush currents, such as lighting and resistive loads. The rated current for this MCB is 40A, and it has a voltage rating of 400V AC. With a breaking capacity of 6kA, it can safely interrupt fault currents up to 6,000 amps, preventing damage to equipment and ensuring safety. This particular version is designed and configured according to Italian standards and regulations. The 5SL6640-6BB provides reliable and efficient protection for electrical circuits. It is ideal for use in distribution boards and control panels. Its compact design allows for easy installation and space-saving.