Circuit breaker 25kA, In=20A, characteristic D. 4-pole. AZ-4-D20 174541

Overcurrent circuit breaker – reliable protection for electrical installations

This four-pole overcurrent circuit breaker from Eaton's AZ series, with a rated current of 20A and D characteristic, is a key safety element in any electrical installation. It provides effective protection against overloads and short circuits, protecting both devices and people. Its withstand current capacity of up to 25kA guarantees reliable operation even in difficult conditions.

Characteristics and application

The circuit breaker with D characteristic is characterized by a delayed tripping time, which makes it an ideal solution for circuits with high inrush currents – e.g. powering motors, transformers or heating devices. This minimizes the risk of unnecessary tripping of the installation when starting connected receivers. The rated voltage of 400V and the switching capacity of 25kA at 400V and 230V confirm its versatility and possibility of use in a wide range of three-phase and single-phase installations. The IP20 degree of protection indicates protection against finger contact, which increases safety of use.

Advantages and benefits

• High breaking capacity: 25kA provides effective protection even in the event of serious short circuits.
• D characteristic: Delayed tripping ideal for circuits with high inrush currents – saves time and eliminates unnecessary downtime.
• Versatility: Can be used in three-phase (4 poles) installations with a voltage of 400V.
• Safety: IP20 protection protects against accidental contact with conductive elements.
• Expandability: Compatibility with additional accessories allows the circuit breaker to be adapted to specific installation needs.
• Compliance with standards: Meets the requirements of IEC 60947-2 standards, ensuring a high level of safety and reliability.
• Compact dimensions: A width of 6 modules makes it easy to mount in standard distribution boards.
• Durable construction: Ensures long life and trouble-free operation of the device.

In addition, the AZ series circuit breakers have railway approvals, which proves their high quality and reliability in demanding industrial applications. The width expressed in number of modules (6) facilitates integration with existing distribution systems, and the installation depth of 75mm allows mounting in various configurations of electrical cabinets.