The THV-1 Triangular Cable Float Switch is designed for simple and reliable liquid level control in water tanks, pumps, sump pits, reservoirs, drainage systems and light industrial liquid control applications.
With a compact triangular float body and flexible cable design, the switch moves with the liquid level and sends an ON/OFF signal when the float reaches the set switching angle. It is a practical solution for automatic pump start/stop control, high-level alarm, low-level protection and water level monitoring.
For buyers looking for a cost-effective water level controller float switch, the THV-1 offers easy installation, stable switching performance and dependable operation in common water and liquid level applications.
Key Features
Reliable ON/OFF Level Control
The THV-1 cable float switch helps control pumps or alarms automatically according to the liquid level. When the liquid rises or falls, the float changes angle and triggers the internal switch to open or close the circuit.
Compact Triangular Float Design
The triangular body design is easy to suspend inside tanks, pits and containers. It is suitable for applications where a simple float switch is needed without complicated installation or programming.
Suitable for Water Tanks and Pump Systems
This float switch can be used for water tanks, sump pumps, drainage pumps, sewage systems, reservoirs and other liquid level control systems.
Durable Plastic Housing
The float body is made from durable plastic material, helping protect the internal switch structure from moisture and common working conditions.
IP68 Protection
The THV-1 float switch is suitable for submerged use when installed correctly. It is designed for wet environments where ordinary switches cannot operate safely.
Easy Cable Installation
The switch can be installed by suspending the cable at the required control height. The switching range can be adjusted by changing the cable length and counterweight position.
Low Maintenance
With a simple mechanical floating structure, the THV-1 requires little maintenance after installation, making it suitable for cost-sensitive pump control projects.
Product Specifications
| Item | Specification |
| Product Name | THV-1 Triangular Cable Float Switch |
| Model | THV-1 |
| Type | Cable Float Level Switch |
| Output Signal | Switching Type / ON-OFF Signal |
| Housing Material | PPC / Plastic body, subject to final configuration |
| Protection Grade | IP68 |
| Voltage | 220VAC control circuit, subject to model confirmation |
| Cable Spec | Common option: 4A/220VAC; customized options available |
| Working Temperature | 0–60°C |
| Pressure | Approx. 2 kg/cm² |
| Contact Form | Normally open / normally closed options available |
| Cable Length | Customizable |
| Application Media | Clean water, wastewater, light sewage, neutral liquid, oil-based liquid, subject to material compatibility |
| Installation | Suspended cable installation with optional counterweight |
| Certification | CE / RoHS options available |
Note: Final electrical rating, cable length, material and contact type can be adjusted according to order requirements. Please confirm your working voltage, liquid type, installation depth and pump control method before purchase.
How the THV-1 Cable Float Switch Works
The THV-1 float switch works through buoyancy. When the liquid level changes, the float body rises or falls with the liquid surface. Once the float reaches the set angle, the internal switch changes contact status and outputs an ON/OFF signal.
In a pump control system, this signal can be used to:
Start the pump when the water level is high.
Stop the pump when the water level drops.
Trigger a high-level alarm.
Protect the pump from dry running.
Control filling or draining automatically.
This makes the THV-1 a simple but effective solution for automatic water level control.
Main Applications
Water Tank Level Control
The THV-1 float switch can be installed inside water tanks to control water filling or draining. It helps maintain the required water level and reduces manual checking.
Sump Pump Control
For basements, drainage pits and sump systems, the switch can help start or stop the pump automatically according to water level changes.
Sewage and Wastewater Systems
The cable float switch can be used in light sewage and wastewater applications where a basic pump control signal is required.
Drainage Pump Systems
It is suitable for drainage wells, pump pits, rainwater collection systems and general liquid discharge control.
Reservoirs and Storage Containers
The THV-1 can be used for liquid storage tanks, reservoirs and containers that need simple high-level or low-level control.
Industrial Liquid Level Monitoring
For light industrial applications, it can be used as a simple liquid level switch for process tanks and auxiliary equipment.
Why Choose Our THV-1 Triangular Cable Float Switch?
Practical for B2B Pump Control Projects
The THV-1 is suitable for pump manufacturers, water treatment equipment suppliers, control panel makers, maintenance companies and industrial distributors.
Custom Cable Length Available
Different projects require different installation depths. We can provide cable length options according to your tank size and control distance.
Flexible Contact Options
Normally open and normally closed options can be supplied according to your wiring design and control logic.
Stable Performance for Daily Use
The simple floating structure helps ensure stable switching in common water level control systems.
Factory Supply and Bulk Order Support
We support wholesale orders, OEM packaging and project-based procurement for distributors and equipment manufacturers.
Installation Notes
Before installation, confirm the liquid type, working temperature, voltage, current and pump control method.
Do not make cable joints inside the water or liquid.
Use a counterweight if you need to control the switching range more accurately.
Keep the float away from tank walls, pipes or obstacles that may block free movement.
For pump control, make sure the electrical rating of the float switch matches the pump control circuit.
For high-power pumps, use the float switch with a relay, contactor or control panel instead of connecting directly to the pump.
Recommended Ordering Information
When sending an inquiry, please provide the following details:
Product model: THV-1
Application: water tank, sump pump, sewage pump, drainage system, etc.
Liquid type: clean water, wastewater, oil-based liquid, chemical liquid, etc.
Working voltage and current
Required cable length
Contact type: normally open or normally closed
Quantity and packaging requirements
Certification or market requirement: CE, RoHS, OEM label, etc.
This helps us recommend the right configuration for your project.
FAQ
What is the THV-1 Triangular Cable Float Switch used for?
It is used for automatic liquid level control in water tanks, sump pumps, drainage systems, reservoirs and pump control systems. It can send an ON/OFF signal when the liquid level reaches the set position.
Can the THV-1 float switch control a pump directly?
It depends on the pump power and electrical rating. For small control circuits, it may be used directly according to the rated specification. For larger pumps, we recommend using it with a relay, contactor or control panel.
Is the cable length customizable?
Yes. Cable length can be customized according to the tank depth, installation method and project requirement.
Can it be used in wastewater?
Yes, it can be used in common wastewater and drainage applications. For corrosive liquids, high-temperature liquids or special chemicals, please confirm material compatibility before ordering.
What is the difference between a cable float switch and a vertical float switch?
A cable float switch is suspended by cable and moves with the liquid surface, making it suitable for tanks, pits and pump systems. A vertical float switch is usually fixed on a stem and used where the installation position is more limited.
Do you support bulk orders or OEM packaging?
Yes. We can support bulk orders, custom cable length, product labeling and OEM packaging according to customer requirements.
Looking for a reliable THV-1 triangular cable float switch for pump control or water level monitoring?
Contact us today with your application details, required cable length and electrical rating. Our team will help you choose the right float switch configuration for your project.
