Flush-mounted case Stalflex MB-OMP3 300×300×120 for electrical or HVAC installation

Flush-mounted case Stalflex MB-OMP3 300×300×120 for electrical or HVAC installation is a recessed enclosure sized 300×300×120 mm designed to create a neat built-in mounting point for devices, junctions or small service panels. The metal box fits into a wall cavity to provide concealed installation, simplifying access to internal components while protecting them from accidental contact and mechanical damage. The product is intended for indoor use where a flush, low-profile solution is required.

Advantages

The enclosure offers a compact footprint with a standardized 300×300×120 mm internal space that accommodates a range of electrical and HVAC components. Its flush-mounted design reduces protrusion from the wall surface and improves the finished appearance of installations. Constructed from sturdy materials, the case provides mechanical protection and supports secure mounting of devices. The recessed layout also facilitates organized wiring and service access without exposing components to the surrounding area.

Suitable for

• Mounting electrical junctions, terminal blocks and small distribution modules
• Housing control units, thermostats or sensors for HVAC systems
• Concealed mounting of service panels or connection points in residential or commercial walls
• Organizing low-voltage equipment and cable terminations in utility spaces

Key specifications

• External dimensions: 300 × 300 × 120 mm (recessed enclosure size)
• Mounting type: flush/recessed wall installation
• Material: metal construction suitable for indoor installations
• Access: front-opening or removable cover option for service access
• Capacity: space for small service panels, junctions and control modules
• Protection: mechanical protection of internal wiring and components

How to use

Prepare the wall opening to match the enclosure dimensions and ensure appropriate clearance for wiring and devices. Insert the flush-mounted case into the cavity and secure it to the surrounding structure using screws or mounting brackets as appropriate for the wall material. Fit devices, terminal blocks or control units inside the enclosure, route and secure cables to maintain organized wiring, and attach the cover to provide a finished surface. Verify that installed components remain accessible for maintenance and that any required seals or finishes are applied to meet local codes.

Usage recommendations

For safe and code-compliant installation, use the enclosure with compatible devices sized to the internal dimensions and follow local electrical and HVAC installation standards. Ensure grounding and cable strain relief where required, and confirm that ventilation or clearance needs of installed equipment are met.