Residual Current Circuit Breaker P304 4P 40A 100mA Type A TX3 411775

Safety and reliability in your electrical installation

The P304 residual current circuit breaker is a key element ensuring the protection of people and devices in electrical installations. It provides effective protection against electric shock and fire, reacting to ground fault currents. This is a reliable safeguard for both installers and end-users, guaranteeing the safe use of electrical energy.

Design and functionality

The four-pole P304 circuit breaker with a rated current of 40A and a sensitivity of 100mA (Type A) is perfect for protecting electrical circuits in residential, commercial and industrial buildings. Equipped with a test button, it allows for regular verification of its correct operation. The design with a bottom latch and terminal covers significantly simplifies installation and connection of wires, saving time and increasing the installer's comfort. A width of 4 modules allows for efficient use of space in the distribution box.

Advantages and benefits

• High protection efficiency: Provides effective protection against electric shock and prevents fires caused by ground faults.
• Versatile application: Designed for three-phase installations with a voltage of 400V, ideal for protecting various circuits.
• Easy installation: Bottom latch and terminal cover design simplify and speed up the installation process.
• Expandability: Compatible with additional auxiliary devices, such as auxiliary contacts or signaling devices, allowing you to customize functionality to individual needs.
• Durable construction: Made of high-quality materials, guaranteeing long-lasting and reliable operation in a wide range of ambient temperatures (-25°C to 60°C).
• Tamper protection: Equipped with a lock preventing accidental switching on or off of the circuit breaker.
• Resistance to external conditions: IP20 protection degree provides protection against touching with fingers and against solid objects larger than 12.5 mm.

Technical parameters and compliance with standards

The P304 circuit breaker meets the requirements of IEC/EN 61008-1 standards, guaranteeing a high level of safety and reliability. Its short-circuit strength of 10 kA provides resistance to sudden current surges. Designed to operate at a frequency of 50 Hz and a rated insulation voltage of 500V. Accepts solid wire cross-sections from 0.75 mm² to 50 mm² and stranded wires from 0.75 mm² to 35 mm². The rated impulse withstand voltage is 4 kV. Type A means sensitivity to sinusoidal and pulsating rectified currents - which is important for protecting against modern electronic devices generating interference.

The circuit breaker has four poles, operates at a rated voltage of 400V and has a rated current of 40A and a rated differential current of 100mA. The degree of protection is IP20.