Residual current circuit breaker with overcurrent protection 3x1P+N 6kA B 13A/30mA Type A QC/QBB ADZ313D

Hager ADZ313D residual current circuit breaker with overcurrent protection is a compact device that combines the functions of a miniature circuit breaker (MCB) and a residual current device (RCCB). It provides comprehensive protection of the electrical installation against the effects of overloads, short circuits and leakage currents, minimizing the risk of electric shock. This is particularly important in circuits where high safety is required, such as in bathrooms, kitchens or damp rooms.

This model, with a rated current of 13A and a tripping current of 30mA, is designed to protect single-phase circuits with neutral (3x1P+N). Characteristic B provides fast tripping in case of overloads and short circuits, while allowing smooth starting of devices with electric motors – avoiding unnecessary shutdowns when turning on the refrigerator or washing machine. The short-circuit breaking capacity at 6kA level guarantees effective disconnection of the circuit in the event of a serious failure.

The device design allows for flush mounting, which affects the aesthetics of the installation. A width of 4 modules means it will easily fit in a standard distribution board. Additionally, the lock prevents accidental switching on of the circuit breaker after it has been switched off – increasing safety during maintenance work. The IP2X degree of protection protects against touching live parts and the ingress of solid objects larger than 12.5 mm. The device operates at ambient temperatures from -25°C to 70°C.

• Comprehensive protection: combination of overcurrent and residual current protection in one device.
• High selectivity: minimizes the risk of unnecessary circuit tripping thanks to the appropriate tripping characteristics.
• Safety of use: lock preventing accidental switching on after switching off.
• Compact dimensions: 4 module width makes it easy to install in standard distribution boards.
• Flush mounting: improves the aesthetics of the electrical installation.
• Resistance to external conditions: wide range of operating temperatures (-25°C to 70°C).
• Compliance with standards: ensures safe and reliable operation in accordance with applicable regulations.

The device meets the requirements of overvoltage category III and pollution degree 2, which means it is adapted to work in typical electrical installation conditions. The rated impulse withstand voltage Uimp is 4kV, which ensures resistance to sudden voltage surges. The circuit breaker has a rated differential current of 0.03A and is characterized by type A sensitivity – effectively detects AC and pulsating DC leakage currents.