Residual current circuit breaker P 312 2P C 32 A 30 mA Type A 10 kA DX3 series 411299

Multi-functional protection for electrical installations

The DX³ series residual current circuit breaker is a compact solution combining the functions of an overcurrent and residual current device. It provides comprehensive protection of electrical circuits against overloads, short circuits, and electric shock. This is an ideal solution for both professionals and end users seeking reliable and efficient protection.

Design and application

The P 312 2P C 32 A 30 mA Type A 10 kA breaker is designed for use in electrical installations with a voltage of 230 V and frequency of 50 Hz. Its two-pole construction allows protection of a single circuit, while the presence of a neutral pole enhances operational safety. The C characteristic ensures delayed tripping during brief overloads, which is particularly important for devices with electric motors or other components generating inrush currents. The short-circuit capacity of 10 kA ensures effective protection in the event of a short circuit.

• Protection against electric shock: A residual current of 30 mA ensures rapid response upon detection of earth leakage current, minimizing the risk of electric shock.
• Protection against overloads and short circuits: The C characteristic protects the installation from the effects of overloads and short circuits, preventing damage to equipment and wiring.
• Wide application: Ideal for protecting lighting, socket, and electrical appliance circuits in residential and commercial buildings.
• Easy installation: Mounting on a TH35 rail (DIN rail) is quick and intuitive, simplifying installation and servicing.
• Lockout mechanism: The lockout feature prevents accidental tripping from the operator side.

Parameters and key features

The P 312 breaker is characterized by high manufacturing quality and compliance with current safety standards. Its compact dimensions (4 modules width) allow efficient use of space in the distribution board. Additionally, the presence of a test button enables regular verification of the residual current device’s functionality, ensuring continuous protection of the installation.

• Conductor cross-section: Supports single-core conductors from 0.75 mm² to 16 mm² and multi-core conductors from 0.75 mm² to 10 mm².
• Protection rating: IP20 – protection against finger contact and solid objects larger than 12.5 mm.
• Energy limitation class: Class 3 ensures adequate protection against the effects of electric arcs.
• Compliance with standards: Meets requirements of IEC/EN 61009-1 and IEC/EN 60947-2, guaranteeing safe operation.
• Type A: Detects both alternating (AC) and pulsating (A) leakage currents, providing comprehensive protection against various types of hazards.