Residual current circuit breaker type AC 2-pole FRCmM-40/2/003 170392

Residual Current Device (RCD) is a key element in protecting electrical installations, safeguarding users from electric shock. The FRCmM-40/2/003 model from Eaton is a two-pole device designed for use in 240V and 50Hz networks. Its function is to quickly detect and disconnect the circuit in the event of a leakage current, minimizing the risk to life and property.

Functionality and application

This AC type RCD, with a rated current of 40A and a sensitivity of 0.03A, is perfect for protecting lighting circuits, socket outlets, and electrical appliances exposed to moisture. The design with a lock prevents accidental switching on after disconnection due to protection activation – this is an additional level of safety, especially important in home and commercial installations. The possibility of mounting on a DIN rail facilitates integration with existing electrical distribution boards.

Characteristics and parameters

The RCD is characterized by high surge current resistance (0.25 kA) and short-circuit withstand capacity at 10 kA, ensuring reliable operation even in difficult operating conditions. The rated impulse withstand voltage of 4 kV guarantees resistance to overvoltages. The width of the device, 2 modules, allows for efficient use of space in the distribution board. The accepted cross-section of multi-wire cables is 1.5 - 16 mm², and single-wire cables 1.5 - 35 mm², providing great flexibility when selecting power cables. The device operates in an ambient temperature range of -25 to 75°C and has an IP20 degree of protection. It is made of materials close to RAL 7035 color.

• Protection against electric shock: Detects even small leakage currents (0.03A), protecting users from danger.
• Versatility: Suitable for protecting various types of circuits – lighting, socket outlets, electrical appliances.
• Easy installation: DIN rail mounting allows for quick and easy installation in existing distribution boards.
• High reliability: Short-circuit withstand capacity of 10kA and surge current resistance ensure long-lasting and trouble-free operation of the device.
• Safety of use: The lock prevents accidental re-switching of the RCD after it has tripped.
• Wide operating temperature range: Possibility of use in difficult environmental conditions (-25°C to +75°C).