Electrical flush-mount box Simet E135 60 mm for hollow walls, 35 mm plate depth, orange, pack of 25

Simet E135 is a flush-mount electrical box designed for installation in hollow and partition walls. The unit has a 60 mm outer diameter and a 35 mm plate depth, providing a compact enclosure for switches, sockets and cable junctions. Supplied in orange and packaged as a set of 25, this series is intended for applications in drywall, plasterboard and similar cavity walls where a reliable recessed mounting point is required.

Advantages

The Simet E135 offers a consistent round recess and controlled depth that simplify fitting of standard modules and devices. Its injection-moulded design ensures dimensional stability and uniform wall thickness, helping to align faceplates and fixtures. The bright orange colour improves visibility during installation and inspection. Supplied in a pack of 25, it is convenient for larger projects or multiple-room fit-outs.

Suitable for

• Drywall and plasterboard partition walls
• Installations of standard switches and sockets in hollow walls
• Electrical junction points and cable routing inside cavity walls
• Renovation projects requiring recess-mounted electrical devices

When it may not be suitable

The Simet E135 is intended specifically for hollow or cavity walls and may not be appropriate for solid masonry, concrete or block walls where flush-mounting requires different boxes or chiselling. For installations that demand metal enclosures, enhanced mechanical protection, or integrated earthing arrangements, an alternative product designed for those requirements should be chosen.

Key specifications

• Outer diameter: 60 mm
• Plate depth (box depth): 35 mm
• Material: injection-moulded plastic
• Colour: orange
• Package quantity: 25 pieces
• Mounting type: flush/recessed for hollow walls

How to use

Mark the desired device location on the drywall, cut a circular aperture matching the 60 mm diameter, and insert the E135 box into the cavity. Ensure the box sits flush with the finished wall surface and that the depth aligns with the front plate of the intended device. Route cables into the box through the provided knockouts or entry points, secure conductors per local wiring regulations, and attach the switch or socket module to the box before fixing the faceplate. Verify mechanical stability and electrical connections before restoring power.

What to consider before purchase

• Wall type: suitable for hollow/partition walls, not for solid masonry without additional preparation
• Device depth and compatibility with 35 mm plate depth
• Required number of boxes—pack contains 25 units
• Local electrical codes and grounding/earthing requirements

Usage recommendations

For reliable results, use appropriate cutting tools to make a clean 60 mm opening, confirm box alignment with the finished wall surface, and follow national wiring regulations when connecting modules. Store unopened packs in a dry place and inspect each box before installation for any moulding defects.