Residual current device P 302 2P 40 A 100 mA type AC, DX3 series 411515

Safety and Protection in Your Electrical Installation

The residual current device P 302 2P 40A 100mA AC type from the DX³ series is a critical component ensuring safe operation of electrical installations. Its primary function is to protect people from electric shock and to safeguard against the consequences of short circuits and overloads. This reliable solution is ideal for both professional electricians and end-users who prioritize high safety standards in their homes or businesses.

Functionality and Application

This two-pole residual current device, rated at 40A and with a sensitivity of 100mA, is designed for use in 230V AC circuits. Its construction based on AC-type technology ensures effective detection of sinusoidal leakage currents, enabling rapid response in case of insulation failure. Mounting on a DIN rail (TH35) simplifies and accelerates installation, while its compact dimensions (2 modules) allow efficient use of space in the distribution board. Equipped with a mechanical lock, it prevents accidental re-energizing of a faulty device.

User and Installation Comfort

The P 302 DX³ switch has been designed with installer and user convenience in mind. It features a clear operating lever with distinct ON/OFF indication, making it easy to identify the circuit status. The ability to connect wires using comb busbars or pin busbars increases installation flexibility. Additionally, the device is compatible with the HX³ Optimal Power Distribution System up to 125A, enabling the creation of modern and efficient electrical installations. The built-in test button allows regular verification of device functionality, ensuring continuous protection.

Design Features and Specifications

The switch is characterized by high build quality and durability. Its housing is made from materials resistant to mechanical damage and external environmental factors. The rated impulse voltage withstand is up to 4kV, guaranteeing resilience against voltage surges. With a short-circuit withstand rating of 10kA, it ensures safety in the event of a fault in the installation. The wide range of compatible conductor cross-sections (0.75–50 mm² for single-core and 0.75–35 mm² for multi-core) allows adaptation to various types of cables used in electrical installations. The IP20 protection rating provides defense against finger contact and ingress of solid objects larger than 12.5 mm. The operating ambient temperature range is from -25°C to +60°C, enabling use in diverse environmental conditions.