Modular Flush-Mount Distribution Box Legrand PRACTIBOX S 4x12 with White Door (model 135364)

Legrand PRACTIBOX S modular flush-mount distribution box with a white door, configured for 4 rows of 12 DIN-modules, is designed to house circuit breakers, residual current devices and other DIN-rail mounted components in residential and light-commercial electrical installations. The unit fits into wall embedding or service panels and provides an organized layout for protection, control and distribution of electrical circuits while keeping devices accessible behind a hinged white door.

Advantages

The distribution box provides a compact, flush-mounted solution that improves installation neatness and saves space compared with surface-mounted enclosures. A modular layout for 4x12 modules allows flexible arrangement of breakers and protection devices. The white door offers a discreet finish that integrates with interior decor and protects mounted devices from dust and accidental contact. The enclosure is designed for convenient mounting of DIN-rail equipment and straightforward wiring access during installation and maintenance.

Suitable for

• Residential electrical distribution and circuit protection
• Small offices and light-commercial premises
• Housing multiple DIN-rail devices such as circuit breakers and RCDs
• Flush-mounted wall installations and built-in service panels

Key specifications

• Modular capacity: 4 rows × 12 DIN-modules
• Mounting type: flush-mounted (recessed) installation
• Front: hinged white door for device access and protection
• Compatibility: DIN-rail mounted circuit breakers, RCDs and modular accessories
• Material: durable electrical enclosure suitable for indoor use

How to use

Install the enclosure into a prepared wall recess following local electrical regulations and mounting instructions. Securely fasten the unit and attach DIN-rail mounted devices inside the cabinet according to the planned distribution scheme. Route and terminate conductors to the respective protective devices, verify clearances and secure connections. Close the white door after completing wiring to protect components and provide a finished appearance. Final electrical connections and commissioning should be performed by a qualified electrician.

Usage recommendations

Choose device types and ratings that match circuit protection requirements and local codes. Allow sufficient space for wiring bends and heat dissipation, and label circuits for future servicing. Periodically inspect door and mounting integrity and ensure that only qualified personnel perform maintenance and alterations.