Residual current circuit breaker 3P+N 40A 30mA 10kA F CDF640D

Safety and reliable protection for your installation

Residual Current Device (RCD) 3P+N is a key element of every modern electrical installation, providing protection for people and equipment against the effects of electric shock and failures caused by short circuits and overloads. The CDF640D model from Hager, with a rated current of 40A and a sensitivity of 30mA, effectively detects leakage currents to earth, immediately disconnecting the circuit and minimizing the risk of dangerous situations. The ability to switch off short-circuit currents at a level of 10kA guarantees its reliable operation even in the event of high voltage surges.

Installation and application – for professionals and demanding users

The circuit breaker is designed for mounting on a DIN rail, which facilitates its integration with existing electrical distribution boards. The four-pole design (3P+N) makes it ideal for protecting three-phase circuits with a neutral wire. A width of 4 modules allows for efficient use of space in the distribution cabinet. Adapted to work in a wide temperature range (from -25°C to 70°C) ensures reliable operation in various environmental conditions. The possibility of mechanical locking increases safety during maintenance and repairs.

Key features and benefits

• High protection efficiency: 30mA sensitivity ensures a quick response to leakage currents, protecting against electric shock.
• Wide range of applications: Ideal for protecting circuits with a rated current of 40A in three-phase installations.
• Solid construction: Withstand to impulse current 5kA and high quality of workmanship guarantee long-lasting and trouble-free operation.
• Easy installation: DIN rail mounting simplifies integration with existing installations.
• Safety of use: Mechanical lock prevents accidental switching on of the circuit breaker during maintenance work.
• Wide operating temperature range: Enables use in difficult environmental conditions (-25°C to 70°C).
• Compliance with standards: Meets the requirements of EN 61008-1 standard, ensuring safety and compliance with regulations.
• Connection flexibility: Accepts solid conductors with a cross-section from 1 to 25 mm² and stranded from 1 to 16 mm².

This residual current device is not only a protective element, but also an investment in the safety of your family and property. Thanks to its high-quality workmanship and reliable operation, you can be sure that your electrical installation is protected against the effects of failures and dangerous situations. F characteristic provides delayed tripping during short-term overloads, which minimizes the risk of unnecessary tripping of the circuit during the starting of high-power devices – such as motors or transformers.