Modular surface-mounted distribution box Legrand PRACTIBOX S 2x12 with transparent door (model 135432)

Legrand PRACTIBOX S 2x12 is a modular surface-mounted distribution box designed for wall installation to accommodate breakers, residual-current devices and other DIN-rail modular electrical components. The enclosure provides two rows with capacity for 12 modules each, and a transparent front door that allows visual inspection of the installed equipment while offering protection against accidental contact. The product is intended for residential and light commercial electrical installations where a compact, surface-mounted solution is required.

Advantages

The PRACTIBOX S enclosure combines a compact footprint with a transparent door that improves visibility of the status indicators on installed devices without opening the cabinet. Its modular two-row layout supports common DIN devices and simplifies wiring and circuit segregation. The surface-mounted design reduces the need for in-wall modifications and allows flexible placement on finished surfaces. The transparent door is lockable or fastenable to limit unauthorized access and maintain safety.

Suitable for

• Housing miniature circuit breakers (MCBs) and residual-current devices (RCDs) in apartments and houses
• Small commercial or retail premises requiring a visible, surface-mounted distribution board
• Temporary installations or refurbishments where flush mounting is not practical
• Service panels for small workshops, utility rooms and technical closets

When it may not be suitable

This surface-mounted distribution box is not intended for large-scale or industrial electrical systems that require higher module counts, specialized enclosures or integrated busbar systems. It may also be unsuitable where IP ratings for heavy dust or water exposure and specific fire-resistance or ventilation characteristics are mandated by local regulations.

Key specifications

• Configuration: 2 rows with 12 DIN modules per row (2x12)
• Mounting type: Surface-mounted (wall-mounted)
• Door: Transparent/translucent front door for visual inspection
• Material: Durable insulating plastic suitable for electrical enclosures
• Compatibility: Standard DIN-rail modular devices (MCBs, RCDs, surge protectors, meters)

How to use

Mount the distribution box on a suitable flat wall surface using appropriate fasteners and anchors for the wall material. Install standard 35 mm DIN rails inside the enclosure and secure modular devices in the desired configuration across the two rows. Ensure all incoming and outgoing conductors are routed through the provided cable entries or knockouts and that conductors are correctly terminated on devices following local wiring regulations. Close and secure the transparent door after wiring and label circuits for easy identification.

What to consider before purchase

• Verify the total number of DIN modules required for current and foreseeable future circuits
• Check local electrical codes for enclosure type, IP rating and required clearances
• Confirm compatibility with the modular devices (width in DIN modules and DIN-rail type)
• Ensure mounting surface and available space suit a surface-mounted box of this configuration

Usage recommendations

Install and commission the distribution box according to national wiring rules and standards. Use appropriately rated breakers and RCDs; label circuits clearly and allow space for future additions where possible. Periodically inspect the transparent door and internal devices for dust accumulation and secure fastening.