Residual current circuit breaker 3P+N 40A 300mA 6kA AC CFC440J

Residual Current Device (RCD) 3P+N – reliable installation protection

This three-pole residual current device (3P+N) with a rated current of 40A and a tripping current of 300mA is a key element ensuring safety in every electrical installation. Designed to protect against electric shock, it effectively detects leakage currents and immediately disconnects the circuit. Its construction makes it ideal for both domestic and commercial applications.

Construction and application

The device is mounted on a DIN rail and designed for operation in AC circuits with a rated voltage of 400V. It has 4 poles, allowing for full protection of both phase and neutral conductors. A tripping current of 300mA provides effective protection against the effects of indirect contact. The short-circuit strength of 6kA guarantees its reliable operation even in the event of high overvoltages. A width of 4 modules facilitates mounting in electrical panels with limited space.

Key advantages and benefits

• High protection efficiency: Rated differential current of 0.3A ensures a quick response to leakage currents, minimizing the risk of electric shock.
• Versatile application: Suitable for protecting circuits with conductor cross-sections from 1 mm² to 25 mm² (solid core) and from 1 mm² to 16 mm² (stranded core).
• Solid construction: Made of high-quality materials, resistant to mechanical damage and the effects of weather conditions (operating temperature from -25°C to 40°C).
• Safety and compliance with standards: Meets safety requirements, ensuring reliable operation and compliance with applicable regulations.
• Easy installation: DIN rail mounting allows for quick and easy installation in any distribution board.
• Increased resistance to interference: Type AC ensures reliable operation even in environments with electromagnetic interference.
• Short-circuit strength: Ability to withstand a short-circuit of up to 6kA increases the safety of the installation in the event of a failure.
• Wide operating temperature range: Possibility of operation in difficult temperature conditions (-25°C to +40°C) increases its versatility.

This residual current device is an investment in the safety of your electrical installation and the people who use it. Its reliability, versatility and ease of installation make it an ideal choice for both professional installers and end users.