SISCO water level float switch is a cable float switch with a microswitch inside the PP float, triggered by buoyancy and gravity via an internal rolling ball. This float level switch ensures precise switching with a short actuation stroke and low starting friction.
Precise Liquid Level Control
- Internal rolling ball activates the microswitch for responsive and reliable switching action.
- Consistent switch points are delivered without recalibration, saving installation time.
- Reduced actuation travel enables quicker response to liquid level changes.
- Low starting resistance allows operation even in low-density liquids.
Durable Construction for Harsh Media
- Corrosion-resistant PP housing protects internal components from mild acids, alkalis, and saltwater.
- Double-sealed secondary injection molding prevents moisture ingress and ensures IP68 protection.
- PVC+rubber composite cable combines flexibility with abrasion resistance for long-term durability.
- Continuous operation in 0°C to 80°C media without performance degradation.
Applications
SISCO water level float switch is used in water tanks, cooling towers, reservoirs, and wastewater sumps for automatic filling and drainage control, as well as pump protection, high-level alarming, and low-level cutoff in industrial and agricultural systems.
Chemical Use
Industrial Drainage
Pool Drainage
Water Tower Filling
| Model | SISCO-LS-EM15-2 |
| Rated Voltage | 250V / 400V |
| Rated Current | 4A |
| Thermal Current | 10A at 250V |
| Switching Angle | Filling: 55°±5°; Drainage: 40°±5° |
| Operating Temperature | 0°C to 80°C |
| Media Temperature | 0°C to 80°C (Water) |
| Working Pressure | ≤ 0.3 MPa |
| Protection Rating | IP68 |
| Density | 692.88 kg/m³ |
| Housing Material | PP (Polypropylene) |
| Cable Material | PVC + Rubber Composite |
| Wire Gauge Options | 0.5mm²/ 1.0mm² |
| Load Capacity | 0.5mm²: 750W; 1.0mm²: 1500W |
| Power Supply | 220V / 380V (Requires AC contactor) |
| Measurement Media | Water |
Dimensions (unit: mm)
| Model | Length (cm) | Width (cm) | Height (cm) | Volume (cm³) | Weight (g) |
| 2m (wire gauge 0.5mm²) | 15 | 10 | 10 | 1500 | 1000 |
| 2m (wire gauge 1mm²) | 15 | 10 | 10 | 1500 | 1200 |
| 3m (wire gauge 0.5mm²) | 15 | 10 | 10 | 1500 | 1200 |
| 3m (wire gauge 1mm²) | 15 | 10 | 10 | 1500 | 1500 |
| 4m (wire gauge 0.5mm²) | 15 | 10 | 10 | 1500 | 1400 |
| 4m (wire gauge 1mm²) | 15 | 10 | 10 | 1500 | 1800 |
| 5m (wire gauge 0.5mm²) | 15 | 10 | 10 | 1500 | 1600 |
| 5m (wire gauge 1mm²) | 15 | 10 | 10 | 1500 | 2100 |
| 6m (wire gauge 0.5mm²) | 15 | 10 | 10 | 1500 | 1800 |
| 6m (wire gauge 1mm²) | 15 | 10 | 10 | 1500 | 2400 |
| 8m (wire gauge 0.5mm²) | 15 | 10 | 10 | 1500 | 2200 |
| 8m (wire gauge 1mm²) | 15 | 10 | 10 | 1500 | 3000 |
| 10m (wire gauge 0.5mm²) | 15 | 10 | 10 | 1500 | 2600 |
| 10m (wire gauge 1mm²) | 15 | 10 | 10 | 1500 | 3600 |
| 15m (wire gauge 0.5mm²) | 15 | 10 | 10 | 1500 | 3600 |
| 20m (wire gauge 0.5mm²) | 15 | 10 | 10 | 1500 | 4600 |
| 20m (wire gauge 1mm²) | 15 | 10 | 10 | 1500 | 6600 |
Q1: What is the difference between 0.5mm² and 1.0mm² wire gauge options for this water level float switch?
A1: The 0.5mm² wire gauge supports load capacity up to 750W, while the 1.0mm² wire gauge supports up to 1500W. For loads exceeding these ratings, an AC contactor must be used in conjunction with this cable float switch.
Q2: What is the switching angle of this float level switch?
A2: The switching angle is 55°±5° for filling mode and 40°±5° for drainage mode. This design ensures accurate and consistent switch points for this water float switch under different control requirements.
Q3: Can this cable float switch be used in hot water applications?
A3: Yes, this water level float switch operates continuously in media temperatures ranging from 0°C to 80°C, making it suitable for hot water tanks, cooling towers, and other thermal liquid level control applications.
Tips: How to ensure proper wiring for this water level float switch?
For filling (water supply) applications, connect the yellow-green and blue wires. For drainage applications, connect the yellow-green and brown wires. Unused wires must be fully insulated with electrical tape to prevent short circuits. Ensure all cable joints are well protected against moisture, as water ingress into the connections can cause false triggering or failure of this cable float switch. Proper wiring ensures your float level switch delivers reliable automatic control from the first day of operation.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
What is covered?
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.
What is not covered?
- Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
- Expendable parts.
- Routine cleaning or normal cosmetic and mechanical wear.
- Damage from misuse, abuse or neglect.
- Damage from use of parts other than SISCO approved.
- Damage from use outside the product’s usage or storage parameters.
- Damage from use of parts not sold by SISCO.
- Damage from modification or incorporation into other products.
- Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
- Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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