16A switch-socket combined (3 in 1): an ON/OFF switch and a 6 & 16A universal socket on heavy porcelain bases behind one white plate, 240V AC.
- Rated 16A, 240 V AC — for heavy plug-in appliances as well as everyday ones.
- 6 & 16A universal socket: six openings take both 6A and 16A round-pin plugs.
- Built-in ON/OFF rocker switch for the socket.
- Switch and socket on heavy porcelain bases, which handle heat well.
- Brass screw terminals; earth (E) and neutral (N) marked on the socket base.
- White plate with four corner fixing holes, marked "For AC only" on the back.
- Plate unit only — the J. box version comes with its own surface box.
A switch-socket combined (S.S. combined) puts a socket and its own switch on one plate. This 16A unit, sold in the trade as a 3 in 1, pairs an ON/OFF switch with a 6 & 16A universal socket, so the same point takes a phone charger or a geyser plug.
Behind the plate, the switch and the socket sit on heavy porcelain (ceramic) bases — generally preferred for high-current points because porcelain withstands heat well. The terminals are brass.
This is the plate unit on its own, for fixing over an existing box or board. For a ready-to-fix unit, choose the 3 in 1 with J. box; for a fuse and indicator lamp on the same plate, see the 5 in 1 units.
Where to use it
- Geyser, room-heater, AC and washing-machine points.
- Kitchen points for ovens, induction cooktops and other heavy appliances.
- Shops, workshops and offices that need a sturdy switched power point.
- Replacing old switch-socket units on surface-wired boards.
How to install
- Switch off the supply at the MCB. A 16A point is typically wired in 2.5 sq mm copper on a 16A MCB.
- Bring the cables into the box or board behind the plate.
- Connect phase, neutral (N) and earth (E) as marked, and tighten the brass terminals firmly.
- Screw the plate on through its four corner holes and switch on.
Electrical work should be done by a licensed electrician with the supply switched off.
Frequently asked questions
- What does "3 in 1 S.S. combined" mean?
- S.S. stands for switch-socket. "3 in 1" is the trade name for this unit — an ON/OFF switch and a 6 & 16A universal socket, rated 16A, on porcelain bases behind one plate.
- Will both 6A and 16A plugs fit?
- Yes. The universal socket has two sets of openings — the smaller ones for 6A round-pin plugs and the larger ones for 16A plugs.
- 3 in 1 or 3 in 1 with J. box — which should I buy?
- Buy this plate unit if you already have a box or board to fix it on. The J. box version comes with its own surface box, ready to screw onto the wall.
- What is the difference between 3 in 1 and 5 in 1?
- The 5 in 1 adds a fuse and an indicator lamp to the same plate: the fuse protects the point and the lamp shows when it is on.
- Which wire and MCB does a 16A point need?
- Typically 2.5 sq mm copper wire on a 16A MCB, with a proper earth. Your electrician should size the circuit for the appliance.
- Can I use it outdoors?
- No. It is for indoor walls on AC supply only. For rain-exposed places, use a weatherproof enclosure.
Buy the 16A 3 in 1 switch-socket combined online from Electric Market, Chennai. For site, contractor or bulk quantities, contact us for a quote.