The EPC series uses a magnetic float and a reed switch to provide an on/off signal when liquid reaches the sensing position. EPC1 and EPC2 use compact standard float arrangements; EPC3–EPC8 use hinged duckbill floats with several mounting forms.
The polypropylene body and float suit water and compatible clean or mildly corrosive liquids. Side mounting supports level indication, alarms and control inputs in compact tanks, appliance reservoirs, water-treatment equipment and industrial liquid systems.
| Model | Connection or mounting reference | Form |
|---|---|---|
| EPC1 | M12×1.25 | Offset standard float |
| EPC2 | G1/4 | Compact cylindrical float |
| EPC3 | 1/2in NPT | Duckbill |
| EPC4 | Ø21.8mm mounting-seal reference; match the installation opening | Duckbill with sealing arrangement |
| EPC5 | M16×2.0 | Duckbill |
| EPC6 | 1/2in NPT | Duckbill |
| EPC7 | G1/2 | Duckbill |
| EPC8 | M12×1.25 | Duckbill |


| Parameter | 1A1 option | 2A1 option |
|---|---|---|
| Maximum contact power | 10W | 30W |
| Maximum switching voltage | 100VDC | 220VDC |
| Maximum resistive switching current | 0.5A | 1.5A |
| Breakdown-voltage reference | 220VDC | 300VDC |
| Contact resistance | ≤100mΩ | ≤100mΩ |
| Operating temperature | −10–85°C | −10–85°C |
The liquid-density reference is 650kg/m³. Confirm buoyancy and free movement in the actual medium. Select the supplied contact configuration before finalizing the circuit, and observe power, voltage and current limits simultaneously.
| Parameter | 1A1 | 2A1 |
|---|---|---|
| Contact power | 10VA | 30VA |
| Switching voltage | 110VDC | 220VDC |
| Resistive switching current | 0.2A | 0.2A |
| Breakdown voltage | 200VDC | 300VDC |
| Temperature range | −10–85°C | −10–85°C |
Use the rating assigned to the delivered contact version. Breakdown voltage is a dielectric characteristic and must not be used as the switching-voltage limit. A load beyond the reed-contact capacity requires an external relay or contactor.



Confirm the mounting opening, thread standard, tank-wall thickness, switching position, cable length and electrical load before ordering. Install the sensor horizontally through the tank wall and orient the float for the required normally open or normally closed operation. Check the actual contact state after installation.
Keep the float clear of nearby walls, pipes and deposits. Use liquids compatible with polypropylene, protect the cable and keep terminations dry. The attached manual includes dimensions for all eight models; confirm the exact mounting form and final drawing for the supplied version.