Residual current device P 304 4P 100 A 30 mA Type A, DX3 series 411763

Safety and Protection in Your Electrical Installation

The residual current device (RCD) P 304 4P 100A 30mA Type A from the DX³ series is a critical component ensuring safe operation of electrical installations. Manufactured by Legrand, this device protects against electric shock and prevents fires caused by earth fault currents. It is an indispensable safety measure for both residential and industrial applications.

Functionality and Applications

The RCD P 304 is designed for DIN rail mounting and features a 4-pole construction. With a rated current of 100A and a sensitivity of 30mA, it is ideal for protecting high-power circuits requiring high-level protection. Type A indicates that the device responds to both alternating sinusoidal residual currents and pulsating direct residual currents, providing comprehensive protection against various types of hazards.

• Versatile application: Perfect for protecting high-power circuits in residential, commercial, and industrial buildings.
• Fast response: 30mA sensitivity ensures rapid disconnection upon detection of dangerous leakage current.
• Compatibility: Works with the HX³ Optimal Power Distribution System up to 125A, enabling wireless connection to electrical installations.
• Expandability: Compatible with a wide range of auxiliary devices (auxiliary contacts, trip units), allowing customization to meet individual needs.

Design and Technical Specifications

The P 304 device from the DX³ series features a robust construction and high manufacturing quality. It occupies 4 modules on the DIN rail, facilitating installation even in compact distribution boards. With a short-circuit withstand rating of 10kA, it guarantees reliable operation during fault conditions. Additionally, the mechanical lock ensures safety during maintenance and repair.

• Width: 4 modules (72mm) – compact dimensions simplify installation in confined spaces.
• Rated voltage: 400V AC – standard voltage for most electrical installations.
• Rated residual current: 30mA – ensures effective protection against electric shock.
• Protection rating: IP20 – protection against finger contact and solid objects larger than 12.5 mm.
• Operating temperature: -25°C to +60°C – suitable for use across a wide range of ambient temperatures.
• Conductor cross-section: Accepts single-core cables from 0.75 mm² to 50 mm² and multi-core cables from 0.75 mm² to 35 mm².

This residual current device is an investment in safety and peace of mind for every user of an electrical installation and for professional installers seeking a reliable, high-quality solution.