Residual current device P 304 4P 25 A 100 mA Type A DX3 series 411769

Protection and Safety in Your Electrical Installation

This four-pole residual current circuit breaker (RCCB) P 304 from the DX3 series is a critical component ensuring safety in every electrical circuit. It provides protection against electric shock and reduces the risk of fire by reacting to earth leakage currents. It is indispensable in both residential and industrial installations where high reliability and effective protection are required.

Functionality and Technical Parameters

The device features a rated current of 25 A and a sensitivity to residual current of 100 mA (0.1 A), type A. This means it effectively detects and interrupts circuits in the event of short circuits or leakage currents, protecting both people and equipment. Installation is performed on a DIN rail, and the device width is 4 modules—facilitating seamless integration into existing distribution boards. The RCCB includes a lockout mechanism that prevents accidental re-energizing after tripping due to protection activation.

Construction and Application

Constructed from high-quality materials, the P 304 DX3 RCCB ensures long-term, fault-free operation even under demanding conditions. Designed to operate in temperatures ranging from -25°C to 60°C, it is resistant to disturbances and current surges (up to 0.25 kA). The rated impulse withstand voltage Uimp is 4 kV, and the rated insulation voltage Ui is 500 V. The option to use additional accessories allows customization to meet specific installation requirements. The cross-section of single-core conductors can range from 0.75 mm² to 50 mm², and for multi-core conductors from 0.75 mm² to 35 mm².

• Wide range of applications: Ideal for protecting lighting, socket, and electrical appliance circuits.
• High reliability: Thanks to advanced technologies and high-quality materials, it provides effective protection against electric shock and fire.
• Easy installation: DIN rail mounting enables quick and simple installation in any distribution board.
• Test button: Allows regular verification of the RCCB’s proper operation.
• Compliance with standards: Meets all safety standard requirements, guaranteeing safe usage.
• Lockout mechanism: Prevents accidental re-energizing after tripping—enhancing safety during repair or fault diagnosis.