Extension sockets: how to choose a safe extension cable for home and office
To choose a safe extension socket, match it to the job: a plug-in three-way adaptor where you only need more outlets at the wall, a corded extension where the appliances are a few metres away, and a cable reel for long runs on site. Then check the rating. Every MODI adaptor and extension we stock is rated 13A at 250V, and the corded MD-HWA9030 and MD-HWA9040 are rated 3,250W maximum for all outlets combined, not per outlet. Prices run from KSh 170 for a basic fused adaptor to KSh 7,000 for a 50 m cable reel.
Three types, three jobs
| Product | Type | Key ratings (from the product page) | Piece | Carton |
|---|---|---|---|---|
| MD-HWA5003 | 3-way adaptor, switch and indicator light | 13A 250V, 13A fuse, safety shutters | KSh 170 | KSh 61,200 (400 pcs) |
| MD-HWA5004P | 3-way adaptor, plastic square pin | 13A 250V, 13A fuse, safety shutters | KSh 170 | KSh 30,600 (200 pcs) |
| MD-HWA6030 | 3-way universal adaptor | 13A 250V, fused UK plug, takes square and round pins | KSh 490 | KSh 15,875 (36 pcs) |
| MD-HWA6030U | 3-way universal adaptor + USB | 13A 250V, fused, USB 5V 2.1A | KSh 910 | KSh 29,480 (36 pcs) |
| MD-HWA9030 | 3-way extension, 3 m lead | 13A max, 3,250W max, 3 x 1.25 mm PVC cable, BS 1363 plug | KSh 630 | KSh 13,605 (24 pcs) |
| MD-HWA9040 | 4-way extension, 3 m lead | 13A max, 3,250W max, 3 x 1.25 mm PVC cable, BS 1363 plug | KSh 770 | KSh 16,630 (24 pcs) |
| MD-HWW1006 | Cable reel, 50 m | 3 x 2.5 mm rubber-sheathed cable, 3 x 13A sockets | KSh 7,000 | KSh 25,200 (4 pcs) |
Plug-in adaptors
An adaptor plugs straight into the wall with no cable, so there is nothing to trip over. The MD-HWA5003 and MD-HWA5004P are the everyday KSh 170 options; both have a 13A fuse and safety shutters over the socket holes, which matters in homes with small children, and the 5003 adds a switch with an indicator light. The MD-HWA6030 takes both UK square-pin and round two-pin plugs, useful when imported appliances arrive with mixed plugs. The MD-HWA6030U adds a USB port (5V, 2.1A) so a phone charges without using up a mains outlet.
Corded extensions
When the TV stand, desk or workbench is away from the wall, use a corded extension. The MD-HWA9030 (three-way) and MD-HWA9040 (four-way) share the same build: 3 m of 3-core 1.25 mm PVC cable, a BS 1363 plug, ABS housing and copper contacts. MODI also makes both in a 5 m length; ask us about stock.
Cable reels
The MD-HWW1006 carries 50 m of 3 x 2.5 mm rubber-sheathed cable with three 13A sockets on the drum, for building sites, workshops, events and generator runs. MODI's own instruction is to unwind the drum fully before drawing a heavy load: a coiled cable carrying current can overheat.
How to use an extension safely
These are general good practice, not a substitute for a qualified electrician on a new installation.
- Add up the load. The 3,250W on the MD-HWA9030 and MD-HWA9040 is the ceiling for everything plugged in together. A TV, decoder, router and phone charger together use only a small part of it. Anything with a heating element, such as a kettle, iron, heater or hot plate, can use most of it alone, so count those carefully and avoid running two at once from one extension.
- Do not daisy-chain. Plugging one adaptor or extension into another stacks the load onto one wall socket. MODI's own notes advise against chaining adaptors together.
- Keep the fuse. The UK-type plugs on these adaptors are fused. If a fuse blows, replace it with the correct rating and find out why before plugging back in.
- Check for heat and damage. A plug or block that feels hot, smells of burning, or has a cracked case or cut cable should be taken out of use.
- Not a permanent fix. If a room needs an extension every day, adding wall sockets is the better long-term answer. Our guide to choosing sockets and switches for each room covers 13A, 25A and 45A points.
Where to buy
All seven are in our extension sockets collection; fixed wall sockets are in sockets and the whole MODI range is in the MODI collection. Collect from our Nairobi trade counter at Royal Business Park, opposite Complast, Old Mombasa Road, Monday to Saturday, 8:00 to 17:30, or order for countrywide delivery at a flat KSh 350, free on orders over KSh 15,000. Contractors and shops buying by the carton can request a trade quote on our trade page, and for a quick answer on stock or sizes, message us on WhatsApp.
Common questions
How many appliances can I plug into a 4-way extension?
As many as fit, as long as the total stays within 13A / 3,250W. Four low-power devices are fine; two heating appliances may not be.
Can I run a fridge or a microwave on an extension?
Ideally, large appliances go straight into a wall socket. If you must use an extension, use a corded one rated for the load, keep it uncoiled and plug nothing else heavy into it.
Which adaptor takes round-pin plugs?
The MD-HWA6030 and MD-HWA6030U have universal outlets for UK square pins and round two-pin plugs.
Do you supply hardware shops?
Yes. Every model has a carton price (shown above), and shops can request a trade quote on our trade page.