Overcurrent circuit breaker 15 kA, In=3 A, B characteristic, 1-pole FAZ-B3/1-NA 132417

Safety and Reliability in Your Electrical Installation

This single-pole circuit breaker from Eaton's FAZ-NA series is a key element in protecting electrical circuits against overloads and short circuits. A rated current of 3A combined with characteristic B makes it ideal for protecting lighting circuits, socket outlets and other similar loads. The breaking capacity of up to 15 kA guarantees effective protection even in the event of serious disturbances.

Functionality and Installation

The FAZ-B3/1-NA circuit breaker is designed for easy mounting on a standard TH35 rail. Its compact size (1 module wide) allows for optimal use of space in the distribution board. A wide range of permissible conductor cross-sections (1-25 mm²) ensures compatibility with different types of installations. Suitable for operation in temperatures from -25°C to +75°C, it will perform well in various environmental conditions.

Key Features and Benefits

• Characteristic B: Provides a quick response to short circuits, protecting the installation and devices from damage, while also allowing for short-term overloads without unnecessary tripping – useful, for example, when starting motors.
• Breaking capacity 15 kA: Guarantees effective circuit interruption in the event of a short circuit, minimizing the risk of fire and equipment damage.
• Compact dimensions (1 module): Allows for efficient use of space in the distribution board, especially important with limited mounting options.
• Wide range of conductor cross-sections (1-25 mm²): Provides flexibility when selecting appropriate conductors for a specific application.
• Protection degree IP20: Protects against touching fingers and against the ingress of solid objects larger than 12.5 mm – basic protection for safe operation.
• Rated voltage 240V AC: Standard operating voltage in most electrical installations of residential and commercial buildings.

Technical Data for Professionals

The FAZ-B3/1-NA circuit breaker meets the requirements of IEC 60947-2 and EN 60898 standards, confirming its high quality and safety of use. It has overvoltage category III and limitation energy class III, making it suitable for use in various types of electrical installations. The rated insulation voltage Ui is 440V, and the rated impulse withstand voltage Uimp is 4kV. Power losses are 2.2W at rated voltage and frequency 50-60Hz. The device does not have the possibility of simultaneous disconnection of the N pole and is not explosion-proof.