Residual Current Circuit Breaker P304 4P 40A 500mA TYPE AC TX3 411738

Safety and reliability in your electrical installation

This four-pole residual current circuit breaker (RCCB) is a key element ensuring the protection of people and equipment in electrical installations. Designed to protect against electric shock and the effects of short circuits, it is a reliable solution for both professional installers and end-users. The P304 4P 40A 500mA TX3 model from Legrand, catalog number 411738, is distinguished by its high efficiency and ease of installation.

Functionality and construction

The circuit breaker is characterized by a rated current of 40A and a residual current sensitivity of 500mA type AC. This means that it reacts to leakage currents up to a value of 500mA, providing a quick intervention in the event of a failure. Designed to AC standard, it is intended to protect against the effects of alternating currents. Mounting is done on a DIN rail, and the compact dimensions (installation depth 44mm and width 4 modules) allow for easy adaptation to an existing distribution board. The short-circuit strength of 10kA guarantees its stable operation even in difficult conditions. Additionally, a lock prevents accidental disconnection of the device.

User comfort and installation

The design of the circuit breaker has been designed with the convenience of installers in mind. It has a test button to allow regular checking of its functionality. The cross-section of the single-wire connecting cable up to 50mm² and the multi-wire cable up to 35mm² provides flexibility when connecting different types of cables. Made of materials resistant to mechanical damage (degree of protection IP20) and high impulse withstand voltage (0.25kA) increase its durability and reliability. The color of the housing close to RAL 7035 provides an aesthetic appearance and easy identification in the distribution board. The ambient temperature in operating conditions from -25°C to 60°C allows it to be used in a wide range of environmental conditions.