Residual current circuit breaker 40A, 30mA, 2-pole, type A CDA240J

Residual Current Device (RCD) is a key element of any electrical installation, ensuring the safety of users and protection against the effects of short circuits to earth. The CDA240J model from Hager, with a rated current of 40A and a sensitivity of 30mA, is a two-pole type A device designed to protect circuits against differential current. Mounting is done on a standard DIN rail, which facilitates integration with the existing distribution board.

This RCD is characterized by high reliability and compliance with applicable standards. Its design has been carefully thought out in terms of ease of installation and diagnostics. This means that both professional installers and end-users can count on trouble-free operation. The short-circuit breaking capacity of 6kA guarantees effective protection in the event of an overload.

Key features and benefits:

• Protection against electric shock: The RCD quickly disconnects the power supply when a differential current is detected, minimizing the risk of electric shock.
• Type A – versatility of application: Thanks to class A, the device reacts to both sinusoidal and pulsating currents, making it suitable for a wide range of loads – from traditional receivers to modern electronic devices.
• High short-circuit breaking capacity (6kA): Provides effective protection of the installation in the event of a short circuit, preventing damage and fires.
• DIN rail mounting: Standard mounting simplifies installation and replacement of the device in existing distribution boards.
• Compact dimensions (2 modules): Saves space in the distribution board thanks to the small width of the device.
• Wire cross-sections: Possibility of connecting solid wires with a cross-section of 1-25 mm² and stranded wires 1-16 mm², which provides flexibility in choosing wires.
• Rated voltage 230V: Designed for standard single-phase installations with a voltage of 230V.

The CDA240J RCD is a solid and reliable solution for anyone who values safety and comfort. Its technical parameters and design guarantee long-lasting and trouble-free operation in various operating conditions. The device is ideal for both new installations and modernization of existing electrical systems in residential, commercial and industrial buildings.