Residual current circuit breaker P 312 2P B 6 A 30 mA Type A DX3 series 410962

Protection and Safety in Your Electrical Installation

This two-pole residual current circuit breaker P 312 from Legrand’s DX³ series is a key component ensuring comprehensive protection in electrical circuits. It combines the functions of an overcurrent and residual current device, safeguarding against the effects of overloads, short circuits, and electric shocks. As a result, it provides reliable protection for both installers and end users.

Functionality and Application

The P 312 breaker, rated at 6A and with a residual current sensitivity of 30mA and characteristic B, is designed to protect lighting, socket circuits, and other low-power loads. The Type A sensitivity ensures effective protection against alternating residual currents, which is especially critical in residential and public utility spaces. Its compact dimensions — only 2 modules wide — enable efficient use of space in distribution boards.

Advantages and Design Features

• Combined Functions: Integration of overcurrent and shock protection in a single device saves space in the distribution board and simplifies installation.
• Characteristic B: Provides rapid response to short-term overloads while allowing safe startup of motor-driven devices (e.g., refrigerators, washing machines).
• Test Button: Enables regular verification of the residual current device’s functionality, ensuring reliable operation.
• Rated Short-Circuit Capacity: 6 kA ensures effective disconnection in the event of a short circuit.
• Locking Mechanism: Prevents accidental tripping, enhancing operational safety.
• Universal Mounting: Compatible with TH35 rail mounting, facilitating easy installation and replacement.
• Wide Cable Range: Accepts single-core cables from 0.75 mm² to 16 mm² and multi-core cables from 0.75 mm² to 10 mm², ensuring compatibility with diverse installation types.
• Standards Compliance: Meets requirements of IEC/EN 61009-1, guaranteeing safety and reliable performance.

The DX³ series breakers are compatible with Legrand’s HX³ Optimal Energy Distribution System, enabling wireless integration into electrical installations and seamless connection with a broad range of auxiliary devices (auxiliary contacts, signaling devices, trip units). This solution allows flexible customization of the protection system to meet the specific needs of any installation.