Residual current circuit breaker P 312 2P C 10 A 30 mA type AC 10kA DX3 series 410978

Safety and functionality in one – Legrand DX³ residual current circuit breaker

This two-pole DX³ series residual current circuit breaker P 312 is a key element of every safe electrical installation. It combines the functions of an overcurrent and residual current circuit breaker, providing comprehensive protection against the effects of short circuits, overloads and electric shock. This is an ideal solution for both professional installers and end-users who value reliability and peace of mind.

The circuit breaker is characterized by a rated current of 10 A and a residual current of 30 mA, which guarantees effective protection in typical household and commercial applications. Characteristic C ensures an appropriate response to short-term current surges, typical for starting devices with a motor, minimizing the risk of unnecessary tripping. The rated short-circuit breaking capacity is 10 kA, which confirms its strength and reliability in emergency situations.

Design and installation – comfort for the installer

The P 312 DX³ circuit breaker has been designed with easy installation and intuitive operation in mind. Its compact dimensions – a width of 2 modules and an embedding depth of 44 mm – allow for optimal use of space in the switchgear cabinet. Additionally, the presence of a test button enables quick and easy verification of the correct operation of the device. The blocked construction provides additional safety during maintenance and repairs. Flush-mounted installation is also possible.

The device works with the HX³ Energy Optimal Distribution System up to 125 A, enabling wireless connection to the electrical installation, which significantly facilitates the work of installers. Compatibility with a wide range of auxiliary equipment (auxiliary contacts, signaling devices, release devices) increases its functionality and flexibility.

Application and compliance with standards

The P 312 DX³ residual current circuit breaker is used in circuits with a rated voltage of 230 V and a frequency of 50 Hz. It is intended for protection against the effects of short circuits, overloads and electric shock in electrical installations of residential, commercial and industrial buildings. It meets the requirements of IEC/EN 61009-1 and EN 61009 standards, which guarantees its safety and compliance with applicable regulations. The degree of protection IP20 provides protection against finger contact and against the ingress of solid objects larger than 12.5 mm. The accepted wire cross-section is from 0.75 mm² to 16 mm² for solid wires and from 0.75 mm² to 10 mm² for stranded wires.