FS-3 Floatless Level Switch

Product Overview

Based on ATST Electric’s core concept of “Precise Control, Safe and Reliable”, FS-3 Floatless Level Switch provides a practical solution for automatic liquid level control and pump protection applications.​

The product works with level probes or electrodes to detect the liquid level inside a tank, well or reservoir. According to the detected high and low water level signals, FS-3 can support automatic pump start-stop control, helping maintain stable water levels and reduce manual monitoring.​

For water supply, drainage and industrial liquid systems, a reliable floatless level switch helps improve control accuracy and system safety. Compared with traditional mechanical float switches, FS-3 reduces dependence on moving parts and supports cleaner wiring inside electrical control panels.​

With compact structure, simple installation and stable control performance, FS-3 Floatless Level Switch is suitable for building water supply systems, pump control panels, irrigation systems and industrial water management applications.​

Main Features

1. Floatless level control: Detects liquid level through electrodes or probes without mechanical float components.​

2. Automatic pump control: Supports pump start and stop operation according to high and low liquid level signals.​

3. Overflow prevention: Helps stop water filling when the liquid reaches the upper level point.​

4. Dry-run protection support: Helps reduce pump damage risks caused by insufficient water level.​

5. Reliable liquid level monitoring: Provides stable water level detection for automatic control systems.​

6. Compact installation design: Suitable for installation in pump control boxes, electrical cabinets and automation panels.​

7. Simple wiring and maintenance: Easy to connect with probes, pumps and control circuits for field applications.​

8. Wide system compatibility: Suitable for water tanks, wells, reservoirs, drainage systems and industrial liquid control projects.​

Application Scenarios

1. Water tank level control: Used for automatic filling, stopping and level maintenance in residential, commercial and industrial water tanks.​

2. Pump control systems: Suitable for water supply pumps, drainage pumps, booster pumps and circulation pump control.​

3. Well and reservoir management: Applied in wells, reservoirs and water storage systems requiring automatic level detection.​

4. Building water supply systems: Used in apartments, hotels, schools and commercial buildings for automatic water management.​

5. Drainage and sewage systems: Suitable for sump pits, wastewater tanks and drainage pump control applications.​

6. Agricultural irrigation systems: Used in irrigation tanks, greenhouse water supply and farm water management equipment.​

7. Industrial liquid control: Applied in cooling water tanks, process water systems and auxiliary liquid storage equipment.

Technical Date

Dimensions