Residual current circuit breaker P 312 2P B 16 A 10 mA Type A DX3 series 410947

Multi-functional protection for electrical installations

The P 312 2P B 16 A 10 mA Type A residual current circuit breaker from the DX³ series is a compact solution combining the functions of an overcurrent and residual current device. It provides comprehensive protection of electrical circuits against the effects of overloads, short circuits, and electric shocks. This is an ideal solution for both installers and end-users who value safety and reliability.

Design and application

This device is designed for protecting persons and installations in circuits with a voltage of 230 V AC and a frequency of 50 Hz. Its two-pole design (2P) enables protection of the live conductor while simultaneously disconnecting the neutral (N) conductor. The B characteristic ensures rapid tripping in case of short circuits and allows safe starting of motor-driven devices that generate transient inrush currents. The A sensitivity guarantees effective protection against earth leakage currents, minimizing the risk of electric shock.

Key features and benefits

• Two functions in one device: Saves space in the distribution board by integrating overcurrent and residual current protection.
• High breaking capacity: Rated short-circuit breaking capacity of 6 kA ensures effective protection of the installation even during high short-circuit currents.
• Test button: Enables regular verification of the residual current device’s proper operation, enhancing safety confidence.
• Wide range of applications: Ideal for protecting lighting, socket, and electrical equipment circuits in residential and commercial buildings.
• Lockout feature: Provides additional safety during maintenance or repair of installations.
• Compatibility: Compatible with the HX³ Optimal Power Distribution system and a wide range of auxiliary devices (auxiliary contacts, signaling devices, etc.).
• Conductor cross-sections: Accepts both single-core (0.75–16 mm²) and multi-core (0.75–10 mm²) conductors, simplifying installation and connection to existing systems.
• Energy limitation class 3: Provides adequate protection against the effects of electric arcs.

The P 312 DX³ circuit breaker is a reliable and efficient solution for anyone concerned about the safety of their electrical installation. Its compact dimensions (2 module width) and easy installation make it the ideal choice for both professional installers and demanding end-users.