Overcurrent circuit breaker 25kA, In=40A, characteristic D. 1-pole. AZ-D40 174492

Overcurrent circuit breaker – reliable protection for electrical installations

This single-pole overcurrent circuit breaker from Eaton's AZ series is a key element ensuring safety in every electrical installation. Designed to protect circuits with a rated current of 40A, it effectively reacts to overloads and short circuits, minimizing the risk of damage and fires. Characteristic D makes it particularly recommended for protecting circuits with receivers generating high inrush currents, such as motors or transformers. The rated short-circuit breaking capacity of 25kA guarantees its reliability even in extreme conditions.

Solid construction and wide application

The AZ-D40 circuit breaker is characterized by a compact design, taking up only 1.5 module widths. Mounting is done on a TH35 rail, which facilitates and speeds up installation. The IP20 degree of protection provides protection against accidental contact and the ingress of solid objects. The rated insulation voltage Ui is 440V, and the rated voltage is 230V, making it a universal solution for most standard electrical installations. Additionally, the ability to mount accessories expands the functionality of the circuit breaker, adapting it to individual project needs.

Safety and compliance with standards

The circuit breaker meets the requirements of IEC 60947-2 standards, confirming its high quality and safety of use. Energy limitation class 3 and surge category III indicate its resistance to interference and ability to protect against the effects of overvoltages. Thanks to the high short-circuit breaking capacity (25kA at 230V and 400V), the circuit breaker effectively interrupts the circuit in the event of a short circuit, protecting both the installation and connected devices. The use of characteristic D provides a delayed tripping response to short-term overloads, preventing unnecessary disconnection of the circuit during the start-up of high-power devices.