Residual Current Circuit Breaker P312 2P B 10A 30mA TYPE A DX3 410963

Protection and safety in one device

The P312 2P RCBO (Residual Current Breaker with Overcurrent protection) is a reliable solution providing comprehensive protection for electrical installations. It combines the functions of a residual current device and an overcurrent device, protecting against electric shock, short circuits and overloads. This is an ideal solution for both installers and end-users who value safety and convenience.

Functionality and application

This two-pole switch with a rated current of 10A and a differential current of 30mA is designed to protect circuits in residential and commercial buildings. Characteristic B provides a quick response to current increase, which is particularly important for inductive loads such as motors. Type A guarantees detection of both sinusoidal alternating currents and pulsating direct currents – which increases the scope of protection. Mounting on a TH35 rail facilitates installation and integration with existing electrical infrastructure.

Key features and benefits

• Comprehensive protection: Combining residual current and overcurrent functions in one device minimizes the risk of failure and ensures complete safety of use.
• High breaking capacity: Rated short-circuit breaking capacity of 6kA (according to EN 61009-1) ensures effective disconnection of the circuit in the event of a short circuit.
• Convenient operation: Equipped with a test button allowing regular checking of the correct operation of the switch.
• Compact dimensions: A width of only 2 modules saves space in the distribution board.
• Versatility: Compatibility with the HX³ Optimal Energy Distribution System up to 125A and a wide selection of accessories (auxiliary contacts, releases) increase application flexibility.
• Safe installation: With a lock preventing accidental opening of the circuit during operation.
• Wide range of conductors: Possibility of connecting stranded conductors with a cross-section from 0.75 mm² to 10 mm² and solid conductors from 0.75 mm² to 16 mm².

Technical parameters in practice

The P312 switch is characterized by high impulse withstand voltage (0.25 kA) and rated voltage of 230V AC. The degree of protection IP20 provides protection against finger contact, and the energy limitation class 3 guarantees adequate resistance to the effects of electrical energy during a short circuit. The rated impulse withstand voltage Uimp is 4 kV, which confirms its resistance to overvoltages. Pollution degree 2 indicates the possibility of use in environments with a moderate level of pollution. At the same time, the disconnectable N pole increases safety of use.