Anchor Roma 3M Metal Box

Product Details

Key Specifications & Features Module size: 3 Modules (3 M) width — designed to accommodate three adjacent modular accessory units (switches, sockets, regulators) side‑by‑side. Part number / model: Specified in some listings as 21452 for this 3‑M metal box. Material: Galvanised iron (GI) / sheet metal body. For example listing: “Material | Galvanized Iron” for the 3M metal box. Dimensions (approx): One listing shows 15 × 10 × 5 cm for the 3M metal box.  Another states: “Size for 3 M: 79 × 99 mm (depth 46 mm)” in the GI boxed specification list. Finish / features: Rust‑protected GI sheet (for concealed metal boxes) with earthing terminal in some models. Suitable for flush mounting: The box is intended to be embedded or installed in the wall behind the finish plate. Brand compatibility: Designed for the Anchor Roma range of modular switches, sockets and plates—ensures correct alignment of mechanisms + cover plate. For example: listing mentions “Suit all company plates & accessories”. --- Typical Use & Considerations Ideal when you need a switchboard location with three adjacent modules (for example: a triple‑gang switch, or two switches + one socket) and you want a metal flush‑mount box that houses the mechanisms behind the wall finish. Used in concealed wiring / flush mounting installations: The metal box becomes part of the wall/floor assembly before the final cover plate is installed. Because the material is metal (GI), it provides sturdier installation, good grounding pathway, and better durability in some installations compared to plastic boxes — helpful in homes or commercial settings. In a climate like Chennai / Tamil Nadu (coastal/humid), using a proper GI metal box helps with structural durability and rust resistance (provided the sheet is properly coated and installation is done right) — but still it is crucial to ensure the wall embedment, wiring treatment and mounting are good. If your plate and switch mechanism are part of the Anchor Roma range, using this box ensures size and fit alignment — which helps achieve a neat and professional finish. Things to Verify / Before Purchase & Installation Confirm you truly need a 3‑Module width (3 M) box. If your configuration has two modules (2M) or four modules (4M) or more, you should pick accordingly to avoid misalignment or a gap under the plate. Verify the part number / model (e.g., 21452) to ensure you are ordering the correct version (Metal Box 3 M) and matching the rest of your wiring accessories. Check the internal dimensions and depth of the box: One listing shows depth ~ 46 mm for 3 M GI box.  Ensure the wiring, mechanism behind and plate thickness will fit flush when installed. Make sure the mechanisms and cover plates (switches, sockets) you plan to install are compatible with the box (Anchor Roma modular series) so fittings align properly — using mismatched series may lead to mis‑fit. Ensure proper mounting: The metal box must be securely fixed (embedded in wall or anchored) and level, wiring pulled carefully, earthing terminal connected properly, so that the final visible plate sits flush and clean. Ensure the finish and coating of the metal box is appropriate (galvanised/treated) for your environment — in humid coastal locations, corrosion resistance is important.