Electrical mounting box Legrand 54000 — flush junction box 103×103×62 mm

Legrand 54000 is a single-piece flush electrical junction box with external dimensions 103×103×62 mm. Intended for indoor mounting of switches, sockets and wiring connections, this compact flush junction box provides a stable housing for electrical fixtures during renovations and new installations. The unit is supplied as a single box per pack and is designed to be fitted into walls or POP-UP housings where a small, robust enclosure is required.

Advantages

The single-piece design simplifies installation and reduces the risk of gaps or misalignment that can occur with multi-part boxes. Its compact external dimensions make it suitable for tight wall cavities while still providing 62 mm internal depth for wiring and connections. The construction ensures a reliable mounting surface for switches and sockets, preserving mechanical stability over time and helping to protect internal wiring from accidental damage.

Suitable for

• Mounting single switches and standard electrical sockets in domestic or commercial interiors
• Flush installations in renovation projects where space behind the wall is limited
• Use inside POP-UP housings or furniture where a compact junction box is required

Key specifications

• External dimensions: 103 × 103 × 62 mm providing compact footprint and usable internal depth
• Form factor: single-piece flush junction box for wall or POP-UP housing mounting
• Intended use: indoor mounting for switches, sockets and wiring terminations
• Pack quantity: one unit per package suitable for single-point installations

How to use

Cut or prepare the wall or POP-UP housing aperture to fit the 103×103 mm external dimensions. Insert the junction box into the prepared cavity until it sits flush with the finished surface. Run supply and device cables into the box via the designated knockouts or entry points, make the necessary connections following the applicable wiring scheme, and mount the chosen switch or socket to the box using the device’s mounting points. Restore the faceplate or POP-UP cover after verifying secure fixation and that no conductors are exposed.

Usage recommendations

Follow local electrical codes and safety standards during installation. Use appropriate cable glands or grommets when passing cables into the box and secure conductors with the recommended terminal methods. Confirm the box is compatible with the intended device dimensions before installation.