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Multicore Cables

Best Cable for Submersible Pumps in India

25 Jun 2026 2 min read
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Picking the right cable for submersible pumps is about more than size — it has to survive constant immersion, the weight of a deep hang and years of starts and stops.

A submersible pump cable lives in one of the harshest environments a cable will ever face — underwater, underground, in mud and constant wet, for years at a time. Choosing the right one is essential for reliable pumping and safety.

Why flat multicore is the standard

The flat multicore cable is purpose-made for this job. Its slim profile runs neatly down the borewell alongside the riser pipe, and the construction resists water ingress and abrasion in tough conditions.

Copper or aluminium?

APAR offers both: Shakti Flat Multicore uses copper for compact, dependable performance, while AlumShakti Flat Multicore uses aluminium for a lighter, more economical option. Aluminium needs a larger size for the same current, so match the conductor to the pump.

Sizing matters

Size the cable to the motor’s current rating and the well depth — long vertical runs add voltage drop, so under-sizing risks the motor running hot or failing to start. See current-carrying capacity and how to choose the right cable, and have a pump installer or licensed electrician confirm.

Get it right

Use a purpose-built flat submersible cable, sized correctly, from a trusted manufacturer. Browse APAR’s multicore cables or contact us for help selecting.

What makes a good cable for submersible pumps

A submersible pump cable spends its life underwater, so water resistance comes first: look for tough insulation and sheathing rated for continuous immersion. Size the conductor to the motor’s horsepower and the depth of the run — a longer drop means more voltage drop, so a bigger conductor keeps the motor getting full voltage. Flat three-core construction is popular because it sits neatly against the riser pipe and is easy to clamp. Copper conductors give reliable starts, and correct sizing prevents overheating. Choose a purpose-made cable for submersible pumps — like APAR’s flat multicore range — rather than ordinary wire, and the pump runs cooler and lasts longer.

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