EFQS-H High Temperature Cable Float Switch(Micro Switch Type)
High temperature resistant design
Silicone cable (flexible & durable)
Corrosion resistant (sewage, weak acids, and weak alkalis)
Stable and reliable performance
Long service life
Application
- Water tanks
- Household water towers
- Reservoirs and pools
- Industrial drainage systems
- Aquariums
- Sewage treatment systems
- Partly Oil and weak acid/alkali containers
Description
The EFQS-H automatic float switch is a high-performance level controller designed for precise liquid level management in tanks, wells, and reservoirs. It features a durable 304 stainless steel housing combined with a high-temperature resistant silicone cable, ensuring reliable operation in demanding environments.
Equipped with a stainless steel float and high-sensitivity internal micro switch, it provides stable and accurate control of liquid levels. The device is resistant to sewage, weak acids, and weak alkalis, making it suitable for both residential and industrial applications.
With its compact structure, strong sealing performance, and long service life, the EFQS-H is ideal for automatic water supply and drainage systems.
Features
- 304 stainless steel housing:corrosion resistant,impact resistant, and durable
- High-temperature silicone cable:flexible, anti-aging, and chemical resistant
- Micro switch type (up to 100°C)
- Strong sealing structure with waterproof protection (IP68)
- Built-in high-quality copper wire: low resistance and reduced heat generation
- Silver-plated contacts: high current capacity and longer lifespan
- Compact size suitable for narrow installation spaces
- Stainless steel counterweight for stable positioning
Technical Details
Product Type:
Cable Float Switch
Product Model:
EFQS-H
Material:
304/316 Stainless Steel (housing & float), Silicone cable
Size:
See attached drawing
Float Switch Type:
Micro Switch Type
Operating Temperature:
0°C to +100°C
Working Voltage:
0~220V
Control Range:
Liquid level difference >30cm
Contact Switch:
Micro Switch
Float Ball Density:
0.69g/cm³
Lead Length:
2m / 3m / 4m / 5m / 10m (customizable)
Core Material:
Tin-plated Copper
Wire Diameter Specification:
0.5mm²
Installation Type:
Cable Suspended Type
Accessories
What makes EFQS-H different from a standard float switch?
EFQS-H uses a 304 stainless steel housing combined with a sealed industrial-grade structure, offering better durability and suitability for both household and industrial liquid level control compared to basic plastic float switches.
Can this float switch work in dirty or sewage water?
Yes. The sealed structure and corrosion-resistant materials allow stable operation in sewage, wastewater, and slightly contaminated liquids.
How is the switching signal generated?
The internal switch is mechanically triggered by the float movement. As the liquid level rises or falls, the float tilts and activates the internal contact to switch the circuit.
What role does the counterweight play?
The stainless steel counterweight helps stabilize the cable position and ensures the float operates at a fixed switching point for more accurate level control.
Is the cable suitable for outdoor or humid environments?
Yes. The silicone cable is flexible, anti-aging, and resistant to moisture and chemical exposure, making it suitable for harsh environments.
What installation conditions should be considered?
The switch should be installed vertically or with free swing space to ensure the float can move naturally without obstruction.
Can it control both filling and draining systems?
Yes. It can be used for both filling control and drainage control systems, depending on the wiring configuration.
What type of maintenance does it require?
It is a low-maintenance device. Regular inspection for cable condition and float movement is usually sufficient.
Is it suitable for small tanks or limited space installations?
Yes. Its compact structure allows installation in small tanks and narrow spaces where traditional level switches may not fit.
What is the expected service life in real use?
Under normal operating conditions, the switch is designed for long-term stable use with over 50,000 mechanical cycles.
How to choose between micro switch and mercury switch?
The micro switch type is suitable for general applications, while the mercury switch type is ideal for high-temperature environments and more stable switching performance.
Is installation complicated?
No, the installation is simple. The float switch can be installed directly using the cable and counterweight for positioning.
Similar Products
The EDPS series differential pressure switch is a special type of control switch. It is a kind of switch that controls closing or opening based on the pressure difference between mutual components and relies on electrical signals for information transmission.
Floats are available in 1–4 pieces (optional,or more), and the rod length can be customized.
Notes:Float switches cannot directly control solenoid valves, high-power relays, AC contactors, etc. A small relay HH45P is required for transition.
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