Residual current circuit breaker EFI-P2 A 40/0.3 002061132

Reliable protection of electrical installations and people

A residual current device (RCD) is a key element of every modern electrical installation, ensuring safety and protection against the effects of electric shock. The EFI-P2 A 40/0.3 model is a device designed to protect against leakage currents, both in the case of direct and indirect contact. Its operation minimizes the risk of electric shock and potential fire hazards resulting from damage to cable insulation. Mounted on a DIN rail, it will work well in both domestic and industrial installations.

Functionality and technical parameters

This circuit breaker is characterized by a rated current of 40A and a residual current sensitivity of 0.3A, making it suitable for protecting circuits with medium loads. Its Type A design ensures a response to alternating and pulsating DC differential currents – important for modern electronic devices that generate such interference. The short-circuit strength at the level of 10kA guarantees stable operation even in the event of an overload. Thanks to the wide range of conductor cross-sections (1-25 mm²), installation is flexible and adapted to different types of installations. The IP20 degree of protection indicates protection against finger contact, which increases safety.

Installation and application – for professionals and users

The circuit breaker is installed by snapping onto a standard DIN rail, which greatly simplifies and speeds up the installation process. The cross-section of the connected wire can range from 25 to 25 mm², providing a wide choice of suitable wires. The device is designed to operate in AC networks with a voltage of 240V and a frequency of 50/60Hz, and its rated insulation voltage Ui is 440V. This circuit breaker is used to protect lighting circuits, socket outlets and electrical appliances exposed to moisture or direct human contact. The use of a Type A residual current device is particularly important in rooms such as bathrooms, kitchens or basements, where the risk of electric shock is higher. Additionally, its impulse withstand voltage (0.4 kA) ensures reliable operation in difficult operating conditions.