The EFS series flow switch is designed to monitor fluid movement in pipelines and protect equipment from dry running, overheating and emergency situations. It is used on pipelines ranging from DN20 to DN200 in systems with pressures up to 25 bar.
Features a magnetic actuation system, with no springs and mechanically wearing bellows.
| Parameter | Value |
|---|---|
| Switching element type | reed switch, NO contact |
| Maximum switching voltage | 48 VAC / 48 VDC |
| Maximum switching current | 1А |
| Switching power | max 10 Watts, VA |
| Switching frequency | max 100 Hz |
| Contact resistance | max 0.1 Ω |
| Electrical connection | DIN43650 connector with screw terminals up to 1.5 mm2 |
| Process connection | G1/2″ male thread |
| Operating pipeline diameters | from 20 to 200 mm |
| Replaceable paddle type | PFS-P |
| Media type | liquid |
| Media temperature range | -20…+100 °C |
| Media pressure | max 25 bar |
| Ambient temperature range (operation or storage) | -20…+80 °C |
| Relative humidity without condensation (operation or storage) | max 95% |
| Ingress protection | IP65 |
| Total weight (with paddle and mounting screw) | max 347 g |
| Overall dimensions with paddle installed, LxWxH | 226×57×36 mm |
