Heavy Duty Cable Float Switch for Water Tank

A. Product Overview

The Cable Float Switch is a mechanical liquid level switch designed to control the start and stop operation of pumps based on the liquid level inside a tank, sump or reservoir. It works by floating on the liquid surface and changing its position as the level rises or falls.

This switch comes with IP68 protection, a heavy-duty ABS body, and SPDT output with one normally open and one normally closed contact. It is rated for 50,000 operations and supports switching capacity up to 10A at 240 VAC, making it suitable for reliable industrial and commercial level control applications.

The cable float switch is available with different cable lengths such as 2 meter, 3 meter and 5 meter, allowing flexible installation depending on tank depth and level control requirement.

B. Working Principle

The Cable Float Switch operates on a simple mechanical switching principle. The float is fixed inside the tank with a counterweight attached to the power cable. As the liquid level rises or falls, the float tilts at a set angle and activates the internal mechanical switch.

The cable length between the fixed point and the float body decides the switching level. When the float moves upward or downward with the liquid level, it changes the electrical contact position and gives an output signal to start or stop a pump, activate an alarm or control another electrical device.

The switch provides SPDT output, which means it can be wired for either high level or low level control depending on the application. The wiring identification is black as common, brown as normally open and blue as normally closed. The PDF also notes that the cable terminal should never be immersed in water during installation.

C. Why It Is Used

Cable Float Switch is used because it provides a simple, economical and dependable solution for liquid level control without requiring complex electronics. It helps automate pump operation and prevents manual monitoring of tank levels.

It is mainly used for:

Automatic pump start and stop control

Water tank level monitoring

Sump level control

Overflow protection

Dry run protection for pumps

High level and low level alarm control

Drainage and wastewater level control

Reservoir and storage tank automation

This product is especially useful where a rugged mechanical level switch is required for water, wastewater, drainage pits, sump tanks and general liquid storage applications.

D. Suitable Buyers

Cable Float Switch is suitable for buyers who need reliable and cost-effective liquid level control for tanks and pump systems.

Suitable buyers include:

Pump dealers and pump suppliers

Water treatment plant contractors

Wastewater treatment system manufacturers

Industrial maintenance teams

Panel builders and electrical contractors

Automation system integrators

Tank manufacturers

Commercial building maintenance teams

STP and ETP plant operators

OEM machine manufacturers

Plumbing and utility contractors

Factories using sump pumps, transfer pumps or storage tanks

FAQ

1. What is a Cable Float Switch?

A Cable Float Switch is a liquid level control device used to start or stop pumps, trigger alarms or control electrical circuits based on the liquid level inside a tank, sump or reservoir.

2. Where is a Cable Float Switch used?

It is used in water tanks, sumps, wastewater tanks, drainage pits, reservoirs, pump automation systems, STP plants, ETP plants and industrial liquid storage tanks.

3. How does a Cable Float Switch work?

The float moves with the liquid level. When the liquid rises or falls, the float tilts and activates the internal mechanical switch. This changes the output contact and sends a signal for pump control or alarm activation.

4. Can this switch be used for automatic pump control?

Yes. Cable Float Switch is commonly used for automatic pump start and stop operation. It can help prevent overflow and protect pumps from dry running.

5. What is the output type of this Cable Float Switch?

The switch has SPDT output with one normally open and one normally closed contact, allowing flexible wiring for high level or low level control.

6. What is the protection rating of this product?

The Cable Float Switch has an IP68 protection degree, which makes it suitable for immersed float operation in tank level applications.

7. What is the body material of this switch?

The product has a heavy-duty ABS body, suitable for general water and industrial level control applications.

8. What cable lengths are available?

The Cable Float Switch is available in 2 meter, 3 meter and 5 meter cable lengths.

9. What is the switching capacity?

The product supports switching capacity of 10A at 240 VAC and 6A at 380 VAC.

10. What should be considered during installation?

The counterweight should be fixed properly on the cable to set the required water level. The cable terminal should not be immersed in water during installation.