The ELHART ELV3 three-channel level control relay is used in automatic control systems for the liquid or bulk material level, together with level sensors and pumping equipment. It signals liquid presence or absence to relay control and protection circuits, and also connects conductive probes to digital inputs of PLCs, programmable relays, and temperature controllers.
| Parameter | Value |
|---|---|
| Power supply | |
| Supply voltage | 190…240 VAC / 50 Hz (Nominal: 220 VAC / 50 Hz) |
| Power consumption | 3 W |
| Input channels | |
| Number of inputs | 4 |
| Input type |
conductive probe, float switch, dry contact, NPN sensor (with external power supply) |
| Adjustable sensitivity | 500 Ω...5 kΩ, 5 kΩ...1 MΩ |
| Electrode voltage | max 2.5 VAC at 25 Hz |
| Electrode current | max 0.02 mA |
| NPN sensor supply voltage | max 30 VDC |
| Output channels | |
| Number of outputs | 3 |
| Output type | SPST relay (NO) |
| Max switching current and voltage | 5 A at 250 VAC 3 A at 30 VDC |
| Environmental conditions | |
| Operating and storage temperature | -20…+50 °C |
| Relative humidity | 0...80% (without condensation) |
| Housing | |
| Overall dimensions (H×W×D) | 90.2×36.3×57.5 mm |
| Mounting | DIN-rail |
| Ingress Protection | IP20 |
| Insulation category | CAT II (double insulation) |
| Conductor cross-section | max 2.5 mm² |
