Finder 72 Series Float Switches – Reliable Liquid Level Control

What are Finder 72 Series float switches?

Finder 72 Series float switches are mechanical level switches that turn pumps or alarms on and off based on liquid level. As the liquid rises or falls, the float changes position and opens or closes the electrical circuit. With a simple re-wiring, the same float can be used for either filling or emptying.

Finder 72 Series Float Switch diagram. Available from LED Controls.

Designed for long service life and harsh environments, 72 Series floats are widely used in drainage systems, pump control, water storage and industrial applications.

Key features of the 72 Series

Single changeover contact, allowing flexible wiring for filling or emptying.
Rated up to 10 A for resistive loads and 8 A for inductive loads at 250 V AC.
IP68 protection rating, meaning they are fully submersible.
Cable lengths available from 2 - 20 metres.
Ideal for direct pump control, high or low level alarms, and simple level automation.

Finder 72 Series Float Switches available from LED Controls.

Finder 72 Series Float Switch Varieties

Model	Liquid type	Key features	Typical applications	Purpose / why choose it
72.A1	Grey water	Adjustable counterweight for level setting, IP68 submersible, up to 20 m cable	Rainwater tanks, drainage pits, clean sump pumps	Simple, reliable on/off pump control where water is lightly contaminated
72.A1 ACS	Potable water and food-grade liquids	Food-safe plastics, EPDM cable, ACS certified, suitable for chlorinated and salt water	Drinking water tanks, food and beverage processing, swimming pools	Safe for contact with potable water and food liquids
72.B1	Black water and sewage	Robust construction for heavily contaminated liquids, IP68 submersible	Foul water sumps, lift stations, sewage pumping stations	Designed to cope with sewage and solids-heavy wastewater
72.C1	Clean or lightly contaminated liquids	Compact vertical design, magnetic contact, manual auto or forced ON mode, 2 m cable	Narrow chambers, small tanks, confined plant rooms	Works where standard swinging floats will not fit

Why choose Finder 72 Series float switches from LED Controls

The Finder 72 Series combines proven mechanical reliability with modern manufacturing quality. By offering multiple variants within one family, it allows installers and specifiers to select the right float for the job without over-complicating things.

At LED Controls, we help customers choose the correct float switch based on your liquid type, space constraints in your tank and control requirements, ensuring straightforward installation, simple use and long-term reliability.