Overview
This High Temperature Water Level Float Switch is designed for reliable liquid-level detection in tanks, wells, reservoirs, chemical containers, and industrial process systems. Its rugged float design and integrated microswitch provide stable on/off control for pumps and valves, even in challenging environments.
The switch uses a heat-resistant silicone cable (rated up to 180°C) with a 1.0 mm² thick conductor, ensuring long-term durability, excellent insulation, and strong resistance to aging and harsh environmental conditions. Inside the float, a precision micro-switch with a composite silver contact ensures accurate actuation and high switching reliability.
Specification
Technical details for High Temperature Water Level AC & DC Float Switch with Silicone Wire.
| Specification | Details |
|---|---|
| Rated Current / Voltage | 4A / 220V AC |
| Water Level Control Range | > 0.3 m |
| Operating Temperature | Silicone cable ≤ 180°C, Float body ≤ 80°C |
| Max Switching Load | 250V, 10A |
| Power Handling Range | < 1100W (For loads above 1100W, use a relay/contactor) |
| Cable Conductor Size | 1.0 mm² (thick copper core) |
| Operating Pressure | ≤ 1 MPa |
| Protection Rating | IP65 |
| Service Life | ≥ 10,000 operations |
| Float Dimensions | 103 × 79 mm |
| Counterweight Dimensions | Ø 57 mm × 62.5 mm, Cable hole Ø 13 mm |
Pinout & Functions
Pinout and working of the flot switch to get the desired switching.
| Function | Details |
|---|---|
| Wire Color – Blue | Control wire used for water-filling mode (activates when float is down). |
| Wire Color – Brown | Control wire used for water-draining mode (activates when float is up). |
| Wire Color – Black | Common wire shared by both filling and draining modes. |
| Blue + Black Operation | Float Down (low water level): Circuit closed (ON), pump starts. Float Up (high water level): Circuit open (OFF), pump stops. Used for water-filling systems. |
| Brown + Black Operation | Float Up (high water level): Circuit closed (ON), pump starts. Float Down (low water level): Circuit open (OFF), pump stops. Used for drainage / sump-pump systems. |
| Water Supply System (Filling) | Use Black + Blue wires. ON: Float at low level. OFF: Float at high level. |
| Drainage System (Emptying) | Use Black + Brown wires. ON: Float at high level. OFF: Float at low level. |
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