
ESC stainless steel float level switch
Stainless steel side-mount float switch
Duckbill design for stable operation
Built-in reed switch for reliable control
High-temp resistant and corrosion-resistant
Easy installation for compact spaces
Long service life and stable performance

Application
- Water purifiers and drinking machines
- Water heaters and solar water systems
- Air conditioners and humidifiers
- Coffee machines and small refrigerators
- Anti-dry protection systems for heating equipment
- Automotive liquid systems
- Industrial liquid level control equipment
- Agricultural irrigation and water systems
- Household appliances with water level monitoring
Description
The ESC stainless steel float level switch is a side-mounted (duckbill-type) liquid level controller designed for reliable water level detection and dry-run protection. It is widely used in water heating and liquid control systems, providing stable switching performance and long service life. Its compact structure and easy installation make it suitable for both household appliances and industrial equipment.
Features
- Stainless steel construction for high durability
- Duckbill side-mount design, flexible installation based on requirements
- Anti-dry burning protection for heating equipment
- High-temperature resistant, acid-resistant, and alkali-resistant cable
- Resistant to oils and various chemical media
- Thickened sealing structure for strong waterproof performance
- Environmentally friendly anti-oxidation sealing ring
- Stable switching performance with long operational life
- Suitable for multiple liquid types and environments
Technical Details
Product Type:
Float Level Switch
Product Model:
ESC Series
Material:
Stainless Steel + Engineering Plastic + Sealing Rubber
Size:
See attached drawing
Type:
Side Mount Float Level Switch (Duckbill Type)
Operating Temperature:
High temperature resistant (refer to product specification for exact range)
Max Contact Rating:
10VA (1A1) / 20VA (2A1)
Max Switching Voltage:
100V AC/DC (1A1) / 220V AC/DC (2A1)
Max Switching Current
0.5A (1A1, resistive) / 1.5A (2A1, resistive)
Max Breakdown Voltage:
110V AC/DC (1A1) / 300V AC/DC (2A1)
Max Contact Resistance:
100mΩ (1A1) / 100mΩ (2A1)
Temperature Rating:
-30°C to +120°C
Float Ball Material:
Stainless Steel
Float Body Material:
Double-layer silicone insulated wire
Applicable Density:
0.7 × 10³ kg·f/m³
Accessories
What is the difference between stainless steel and plastic float switches?
Stainless steel float switches offer higher durability, better pressure resistance, and longer service life. They are more suitable for high-temperature, corrosive, or industrial environments. Plastic types are more cost-effective and suitable for general water applications but have lower resistance to heat and chemicals.
Can this float switch work in high-temperature environments?
Yes. It is designed with high-temperature resistant materials and can operate in environments up to 120°C, making it suitable for water heaters, solar systems, and heating equipment.
What does the duckbill side-mount design mean?
It refers to a compact side installation structure that allows the switch to be mounted on the side wall of a tank. This design is ideal for narrow or space-limited containers.
What protection does it offer against dry burning?
When used in heating systems, it can detect low water levels and trigger switching action to prevent equipment from operating without water, helping avoid dry-burning damage.
Can it be used with chemicals or oils?
Yes. It has resistance to acids, alkalis, oils, and various chemical media, making it suitable for industrial liquid control applications.
What is the difference between 1A1 and 2A1 models?
The main difference is electrical capacity: 1A1: 10VA, lower load applications 2A1: 20VA, higher load and stronger switching capability Both share the same structure and material but differ in electrical performance.
Is installation complicated?
No. The side-mount design allows easy installation on tank walls without complex setup, making it suitable for both OEM and replacement use.
How long is the service life?
It has a long operational life due to stainless steel construction, sealed design, and stable reed switch technology, suitable for long-term continuous use.
Can it be used in industrial automation systems?
Yes. It is widely used in industrial liquid level control, water treatment systems, agricultural irrigation, and various automated equipment.























