5SY4540-7 SIEMENS

The 5SY4540-7 is a miniature circuit breaker (MCB) manufactured by Siemens, designed for reliable overcurrent and short-circuit protection in electrical circuits. It is engineered to operate at a voltage of 230V with a high breaking capacity of 10kA, ensuring effective protection against potentially dangerous fault currents. This MCB features a 1+N pole configuration, meaning it has one protected pole and a neutral pole, suitable for single-phase applications with neutral requirements. The C-characteristic tripping curve indicates its suitability for circuits with moderate inrush currents, such as lighting and general-purpose circuits. With a current rating of 40A, it can handle substantial loads within its specified range. The device has a compact design with a depth (D) of 70mm, allowing for installation in standard distribution boards and consumer units. This MCB provides a dependable solution for safeguarding electrical installations in residential, commercial, and industrial settings. Its robust construction and compliance with industry standards ensure long-lasting performance and safety. The 5SY4540-7 offers a balance of protection, reliability, and ease of installation.