5SL6640-7BB SIEMENS

The 5SL6640-7BB 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 phase poles and a neutral pole, suitable for three-phase power systems with a neutral conductor. It has a C-curve tripping characteristic, which provides a balance between sensitivity and immunity to nuisance tripping, making it suitable for circuits with moderate inrush currents. The rated current of this MCB is 40A, indicating its capacity to handle continuous loads up to 40 amperes. It has a rated voltage of 400V, making it compatible with standard European voltage systems. The breaking capacity of this MCB is 6kA, meaning it can safely interrupt fault currents up to 6000 amperes. This MCB is designed according to Italian standards and regulations, ensuring compliance with local electrical codes. It provides reliable protection against overloads and short circuits, preventing damage to equipment and reducing the risk of electrical fires. The 5SL6640-7BB is a compact and efficient solution for circuit protection, offering a combination of performance, safety, and ease of installation.