Round vs Flat Multicore Cable: How to Choose
Choosing between a round vs flat multicore cable comes down to the route and the job it has to do — the shape changes how the cable installs, sheds heat and holds up mechanically.
Multicore cables bundle several insulated conductors under one sheath — but should you choose the round or the flat version? The answer depends entirely on the job. Here’s how to decide.
Round multicore: the general-purpose form
Round multicore is the everyday choice for appliances, motors, control panels and most fixed wiring. Its construction is robust and easy to route. APAR offers it across three ranges: Mahashakti (XLPO), Shakti (PVC) and AlumShakti (aluminium).
Flat multicore: built for tight, wet runs
Flat multicore has a slim profile designed mainly for submersible pumps and space-constrained installations — it runs neatly along a pipe down a borewell. See Mahashakti Flat, Shakti Flat and AlumShakti Flat.
Copper or aluminium?
Within both shapes you can choose copper or aluminium conductors — copper for compact, reliable performance, aluminium for economical power distribution on larger runs.
Quick guide
Round for general power and control wiring; flat for submersible pumps and tight runs. When in doubt, size to the load and have an electrician confirm. Browse all APAR multicore cables or contact us.
Round vs flat multicore cable: how to decide
For most fixed wiring and conduit runs, a round multicore cable is the comfortable default. Its symmetrical shape pulls easily through conduit, dissipates heat evenly and resists crushing, which is why it suits the bulk of building and machine wiring.
A flat multicore cable earns its place where space is tight or the cable must lie flat against a surface — submersible pump risers and lift travelling cables are classic examples. The flat profile saves room and follows the surface without bulky bends. In short: pick round for general routing and mechanical protection, and flat where the installation is space-constrained or the application specifically calls for it. Whichever shape you choose, size the conductor to the load and run length, and our team can help you match the right APAR multicore cable to the job.
