Circuit breaker 25kA, In=20A, B characteristic. 4-pole. AZ-4-B20 174532

Overcurrent circuit breaker – reliable protection of electrical installations

This four-pole overcurrent circuit breaker from Eaton's AZ series is a key element of every safe and efficient electrical installation. Designed to protect circuits against overloads and short circuits, it provides reliable operation in a wide range of applications – from residential buildings, through commercial facilities, to industrial installations. The rated short-circuit breaking capacity of 25kA guarantees an effective response in emergency situations, minimizing the risk of damage and fires.

Characteristics and application

The AZ-4-B20 circuit breaker is characterized by a B characteristic, which means it is ideal for protecting circuits with devices with high inrush current – such as motors or transformers. This ensures that the circuit breaker does not trip unnecessarily during short-term current surges, while effectively responding to overloads and short circuits. A width of 6 modules makes it easy to install in standard distribution boards. The rated voltage of 400V AC and high surge voltage resistance (4kV) ensure safety and long-term operation.

Key features and benefits

• High short-circuit breaking capacity (25kA): Provides effective protection of the installation in the event of a short circuit, minimizing the risk of damage and fire.
• B characteristic: Ideal for protecting circuits with devices with high inrush current, prevents unnecessary tripping.
• 4 poles: Allows for comprehensive circuit protection, including the neutral pole (although it is not simultaneously disconnected).
• Mounting on TH35 rail: Standard mounting simplifies integration with existing distribution boards.
• Expandability: Compatibility with additional accessories allows the circuit breaker to be adapted to specific installation needs.
• Energy limitation class 3 and surge category 3: Guarantee high resistance to disturbances and overvoltages in the electrical network.
• Protection degree IP20: Protects against accidental contact with live parts.

The Eaton AZ-4-B20 circuit breaker is a solid and reliable solution for anyone who values the safety and durability of their electrical installation. Its high-quality workmanship and compliance with IEC 60947-2 standards guarantee long-term and trouble-free operation.