Residual current circuit breaker P 312 2P C 20 A 30 mA type A 10 kA DX3 series 411297

Protection and Safety in Your Electrical Installation

This two-pole residual current circuit breaker P 312 from the DX3 series is a key component ensuring comprehensive protection in electrical circuits. It combines the functions of an overcurrent breaker and a residual current breaker, protecting against the effects of overloads and short circuits as well as electric shocks. This is an ideal solution for residential, workshop, and public utility installations.

Functionality and Specifications

The breaker features a rated current of 20 A and a differential current of 30 mA, ensuring effective protection for both people and equipment. The C characteristic allows for short-term overloads typical of induction motor devices (e.g., refrigerators, washing machines) without unnecessary tripping. The rated short-circuit breaking capacity of 10 kA guarantees safety in the event of serious faults. Type A indicates that the device responds to sinusoidal residual currents, which is critical for protection against hazards arising from modern electronic devices.

Installation and Compatibility

The P 312 breaker, with a width of 4 modules, is mounted on a TH35 rail, simplifying installation in distribution boards. It supports single-core conductor cross-sections from 0.75 mm² to 16 mm² and multi-core conductors from 0.75 mm² to 10 mm², ensuring broad compatibility with various cabling types. Additionally, it features a mechanical lock that prevents accidental re-energizing after an automatic trip. Compliance with IEC/EN 61009-1 standards ensures a high level of safety and reliability.

• Comprehensive application: Ideal for protecting lighting, socket, and electrical appliance circuits in residential and commercial buildings.
• Short-circuit and overload protection: Provides comprehensive protection of the electrical installation against damage caused by faults.
• Electric shock protection: Minimizes the risk of electric shock for users of the installation.
• Easy installation: Thanks to standard dimensions and TH35 rail mounting, installation is quick and simple.
• High reliability: High-quality components and compliance with standards ensure long-term, fault-free operation.
• Test button: Enables regular verification of the residual current device’s functionality—essential for maintaining installation safety.
• Compatibility with HX³: Compatible with the HX³ Optimal Energy Distribution System, enabling wireless integration into electrical installations (up to 125 A).