Installation method
Wiring and conduit are hidden inside walls or slabs. Ask what conduit is included.
01 Parts
Conduit · box · coating
Concealed describes how the wiring is hidden. MS, SS and powder coating describe the box that holds switches and sockets inside the wall.
These are not four completely different electrical systems. The wiring route and the metal box are two separate parts.
02 Boxes
The conduit carries wires; the box holds switches, sockets or junctions.
Wiring and conduit are hidden inside walls or slabs. Ask what conduit is included.
Strong, rugged and economical, but needs corrosion protection.
Improves corrosion resistance; it does not by itself make the circuit safer.
Adds a protective finish to metal; coating quality and site damage still matter.
03 Watch
The lower-quality warning is a thin, poorly protected or badly aligned box—not simply the absence of stainless steel.
What conduit, box material and thickness are included?
04 Check
Concealed describes installation. MS and SS describe the enclosure material.
Identify the box material rather than the wiring route.