Residual current circuit breaker P 312 2P C 25 A 30 mA type AC, DX3 series 411015

Multi-functional protection for electrical installations

This two-pole residual current circuit breaker P 312 from the DX3 series by Legrand combines protective functions against electric shock and overcurrent. It provides comprehensive safety for electrical installations, protecting against the consequences of short circuits, overloads, and dangerous leakage currents. This is an ideal solution for both professional installers and end users seeking reliable protection.

Design and application

The P 312 breaker, rated at 25A and with a sensitivity of 30mA (Type AC), is designed for use in circuits with a voltage of 230V and frequency of 50Hz. Its compact design, occupying only 2 module widths, allows efficient use of space in distribution boards. The C characteristic ensures delayed tripping during short-term overloads, which is particularly important when connecting devices with motors or other components generating high inrush currents. Additionally, the presence of a separately switching neutral (N) pole enhances user safety by disconnecting it simultaneously with the phase.

Key features and benefits

• Combined functions: A single device provides both residual current and overcurrent protection—saving space and cost.
• High breaking capacity: Rated short-circuit breaking capacity of 6kA ensures effective protection in the event of a short circuit.
• Test button: Built-in test button enables regular verification of the RCD’s proper operation, ensuring continuous protection.
• Lockout mechanism: Locking feature prevents accidental re-energizing of the breaker after it has tripped due to protection activation.
• Wide conductor range: Compatible with single-core cables from 0.75 to 16 mm² and multi-core cables from 0.75 to 10 mm², ensuring compatibility with various installation types.
• Standards compliance: Meets requirements of IEC/EN 61009-1 and EN 61009 standards, confirming its safety and reliability.
• IP20 protection rating: Protects against finger contact and foreign objects with a diameter greater than 12.5 mm.

The P 312 breaker is a robust and reliable solution for anyone concerned about the safety of their electrical installation. Its versatility and ease of installation make it the ideal choice for both professionals and demanding residential users.