Residual current circuit breaker EFI-P4 AC 40/0.03 002061612

Reliable protection of electrical installations and people

Residual Current Circuit Breaker EFI-P4 AC 40/0.03 is a key element of every safe electrical installation. It provides protection against electric shock, both in case of direct and indirect contact with live parts, and also protects devices from damage caused by short circuits and overloads. This device is essential in both residential and industrial buildings where safety is a priority.

Functionality and technical parameters

This circuit breaker, with a rated current of 40A and a tripping current of 0.03A, is designed to operate in AC (alternating current) networks. It has 4 poles, which allows for effective disconnection of the circuit in case of a current difference. DIN rail mounting simplifies installation and integration with existing electrical infrastructure. Its compact dimensions (4 module width) allow for efficient use of space in the distribution board. Short-circuit strength at 10kA guarantees reliable operation even in difficult operating conditions.

• Protection against electric shock: Fast disconnection of the circuit in case of a leakage current minimizes the risk of injury.
• Versatile application: Suitable for TN-S, TN-C-S, TT and IT networks.
• Easy installation: Standard DIN rail mounting ensures quick and trouble-free installation.
• High reliability: Made of high-quality materials, guarantees long-lasting and trouble-free operation.
• Wide operating temperature range: Allows operation in a temperature range from -25°C to 55°C.
• Wire cross-section: Supports wires with a cross-section from 1 mm² to 25 mm², both solid and stranded.

Construction and compliance with standards

The circuit breaker is designed in accordance with IEC EN 61008 standard, which confirms its compliance with European safety standards. It has a protection degree of IP20, which means protection against touching with fingers and against the ingress of solid objects larger than 12.5 mm. Solid construction and precise workmanship ensure long-lasting and reliable operation of the device. Additionally, the circuit breaker has a contact position indicator to facilitate identification of the device status (ON/OFF). Impulse withstand voltage is 0.4kA which further increases its safety of use.