Legrand DX3 P312 RCBO 2P 32A C 30mA Type AC

The Legrand DX3 P312 RCBO is a high-performance electrical protection device that combines the functions of a miniature circuit breaker and a residual current device within a single unit. Designed for 2P configurations, this device provides comprehensive protection for electrical circuits by monitoring for overloads, short circuits, and earth leakage currents. It is engineered to maintain high safety standards in both residential and commercial electrical systems, ensuring reliable operation and protection for connected equipment and users.

Advantages

This RCBO offers a space-saving design by integrating two essential safety functions into one compact module, which simplifies installation and optimizes space within distribution boards. The C-type tripping characteristic makes it suitable for circuits with moderate inrush currents, such as those powering lighting or small motors. With a 30mA sensitivity, it provides effective protection against direct contact, while the Type AC classification ensures reliable detection of sinusoidal alternating residual currents, making it a robust choice for standard electrical installations.

Suitable for

• Residential electrical distribution boards
• Commercial office lighting circuits
• Small motor control circuits
• Protection of household appliances
• General purpose branch circuit protection

When it may not be suitable

This device is not intended for use in DC-sensitive applications or circuits where high-frequency components are present, as it is specifically designed for Type AC residual current detection. It should not be installed in environments requiring Type A or Type B protection, such as those involving certain types of power electronics or EV charging stations.

Key specifications

• Rated current: 32A
• Tripping characteristic: C-type
• Sensitivity: 30mA
• Poles: 2P
• Type: AC

How to use

The Legrand DX3 P312 RCBO must be installed by a qualified electrician in accordance with local electrical regulations. It is mounted onto a standard DIN rail within a distribution enclosure. Ensure that the supply cables are securely connected to the input terminals and that the load circuits are correctly wired to the output terminals. After installation, the device should be tested using the integrated test button to verify the mechanical operation of the tripping mechanism.

What to consider before purchase

• Verify that the 32A rating matches the requirements of your circuit load.
• Ensure the 30mA sensitivity is appropriate for the intended level of personnel protection.
• Confirm that the installation environment is compatible with Type AC residual current devices.
• Check the available space in your distribution board for a 2P module.

Usage recommendations: Regularly test the device using the test button at least every six months to ensure the internal mechanism remains functional and provides reliable protection against electrical faults.