Product overview
The VTEKE LLR-05 is a liquid level control relay designed for automatic filling and draining of liquid storage tanks. Three sensing electrodes monitor liquid levels and control pump operation. Adjustable sensitivity supports liquids with different conductivities.
Applications
- Water storage tanks
- Automatic tank filling and draining systems
- Industrial liquid level monitoring
- Water pumping stations
- Liquid storage and transfer systems
- Industrial automation and pump control panels
Key features
- Automatic filling and draining control
- Three-electrode liquid level detection
- Adjustable sensitivity for different liquid conductivities
- Automatic pump control at minimum and maximum levels
- LED operating-status indicators
- Relay output for pump control
- DIN rail mounting
Specifications
Electrical Characteristics
| Operating Voltage (Un) | 85–250 V AC/DC |
|---|---|
| Operating Frequency | 50/60 Hz |
| Operating Power | <4 VA |
Control Characteristics
| Level Detection | Conductive electrodes |
|---|---|
| Sensitivity | 5–100 kΩ |
| Sensitivity Adjustment | Adjustable |
| Switching Time | 10 ms |
| Control Function | Automatic filling and draining |
| Electrode Configuration | B (bottom), L (lower), U (upper) |
Output Characteristics
| Contact Configuration | 1NO + 1NC (SPDT) |
|---|---|
| Contact Rating (Resistive Load) | 10 A at 28 V DC; 7 A at 250 V AC; 10 A at 125 V AC; 12 A at 120 V AC |
Operating Conditions
| Operating Temperature | -20°C to +55°C |
|---|
Mechanical Characteristics
| Mounting | DIN rail |
|---|---|
| Connection Type | Plug-in |
| Maximum Wire Size | 1.5 mm² |
| Dimensions (H × W × D) | 90.5 × 35.2 × 64.5 mm |
Full certificate register
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