Float Switches: Simple Level Control That Protects Your Pump

Pumps · Motors · Controls · Accessories

A float switch is a small part that does a big job. It starts and stops your pump automatically as the water rises and falls, so tanks never overflow and pumps never run dry. Aharoni Pumps Trading supplies Float Switches in Dubai for water tanks, sumps, sewage pits and industrial tanks, with honest advice on wiring and setup.

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Filling or Emptying: Get the Mode Right

Filling mode: the switch starts the pump when the level drops and stops it when the tank is full. This is how a water tank float switch keeps your roof tank topped up.

Emptying mode: the switch starts the pump when the level rises and stops it when the pit is nearly empty. This is the setup for sumps, drainage and sewage pits.

Most cable floats can work either way depending on which wires you connect, so always check the float switch wiring diagram before you install.

Types in Our Range

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TypeHow it worksBest for
Cable float switchA sealed float on a cable tilts up or down to switch the contactTanks, sumps and general water use
Sewage float switchHeavier body and tough cable that resists wastewaterSewage and drainage pits
Vertical float switchA float slides up and down a short stemSmall tanks and tight spaces
Magnetic float switchA magnet in the float works a sealed reed contactClean water and precise level points
Electronic water level controllerProbes sense the water instead of a floatTanks where a float could get stuck

Setting Your Levels

Here is a typical setup for a sump or drainage pit, from top to bottom:

LevelPurpose
High levelA high level alarm float warns you before the pit overflows
Pump ONThe pump starts and begins emptying the pit
Pump OFFThe pump stops, with the level still above the pump inlet so it never runs dry

On cable floats, the gap between ON and OFF is set by the free cable length between the float and its weight or clamp. A longer free length gives a bigger gap and fewer pump starts per hour.

Direct Connection or Through a Panel?

Small single phase pumps can often be switched directly by the float, as long as the pump stays within the switch current rating. Larger and three phase pumps should run through a contactor or control panel, with the float only sending the signal. This gives better pump level control and protects the switch contacts for years.

What to Look For in Float Switches for Pumps

  • A current rating that suits your pump or panel
  • Enough cable to reach the junction box without joints inside the tank
  • A mercury free float switch for safe use in drinking water tanks
  • Body and cable materials suited to the liquid, whether clean water, sewage or oil
  • The right mode for the job: filling, emptying or both

Price and Supply

The float switch price in UAE depends on type, cable length, current rating and brand. Order online from this page or WhatsApp us your tank or pit details, and we will suggest the right match.

As a trusted Float Switches Supplier in Dubai, Aharoni Pumps Trading delivers to every emirate and works as an authorized sub dealer partner, supplying genuine products with warranty as per manufacturer terms. Need a hand? Our technicians can install them and set the levels with your pump or panel.

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Share your application or an existing product nameplate with our team for selection advice and a quotation.

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