Residual Current Circuit Breaker (RCCB) series RKN 4P 40A residual current 30mA RKN 4P 40A 30mA RKN 4P 40A 30MA

Residual Current Device (RCD) of the RKN series is a reliable element protecting electrical installations against the effects of short circuits and leakage currents. The 4P 40A model with a 30mA sensitivity provides comprehensive protection in both domestic and industrial applications. The construction based on electromagnetic technology guarantees stable operation even with voltage fluctuations in the network, maintaining phase protection in case of neutral loss.

Protection and Application

This four-pole RCD is designed to protect people and electrical devices from electric shock and damage caused by short circuits and leakage currents. Its versatility makes it suitable for use in residential buildings, commercial facilities, and industrial plants. The rated differential current of 30mA ensures a quick response in the event of a dangerous leakage current being detected, minimizing the risk of electric shock.

Characteristics and Construction

The RKN RCD is characterized by high quality and durability. Mounting on a 35mm DIN rail is simple and intuitive, making installation and servicing easier. The breaking capacity of up to 6kA (depending on the source) guarantees effective disconnection of the circuit in the event of a short circuit. The possibility of using PIN combs for connections increases installation convenience and allows for the creation of compact switchgear panels. The electromagnetic tripping mechanism ensures reliable operation for a long time, and the wide range of operating voltages (6-415V) increases resistance to interference in the power supply network. Made of high-quality materials, it meets the requirements of IEC61008-1 and has the CE marking.

• Four-pole construction (4P): Provides protection for the entire circuit, including phase, neutral and PE protective conductors.
• Rated current 40A: Suitable for most standard loads in electrical installations.
• Sensitivity 30mA: Quick response to leakage currents, providing a high level of safety.
• Breaking capacity: Up to 6kA or 10kA (depending on the specification), effectively interrupts the circuit in the event of a short circuit.
• Type A/AC: Available versions with A characteristic (detects DC pulsed currents) or AC (detects AC sinusoidal currents). Check the specific product specification before purchasing.
• DIN rail mounting: Enables easy and quick installation in the switchgear cabinet.
• Width: Occupies 4 modules on the DIN rail.
• Compliance with standards: IEC61008-1, CE – guarantee of safety and quality.