The pressure at port pressure of the monitored medium is – depending on the pressure range – on a flat membrane and operated via a lever system and springs on a cascade switch. It guarantees flutterfree switching. The switches operate independent of the position.
If there is no pressure on the membrane the contact 1-2 is closed. Pump or compressor may start.
If the set upper switching point is reached, contact 1-2 opens and contact 1-4 closes. Pump or compressor will be switched off.
Contact 1-2 will only be restored when the pressure on the membrane has dropped to the set lower switching point. The upper and lower switching point can be adjusted with a screwdriver independently. For each switching point, a scale exists.
| Upper switchpoint | 0,5 …. 8 bar |
| Lower switchpoint | 0,2 …. 7,5 bar |
| Smallest difference lower
upper / lower end of range |
0,3 / 0,5 bar |
| Max.operating pressure | 30 bar |
| Max. test pressure | 40 bar |
| Standard setting | 2 / 6 bar |
| Connector | G 3/8″ Silumin |
| weight | ca. 0,5 kg |
| Ambient temperature range | -20 …. +70°C |
| Perm. medium temperature | 0 …. +70°C |
| Protection acc.too DIN 40 050/IEC 529 with rubber grommet | IP 54 (Standard) |
| Protection acc.too DIN 40 050/IEC 529 with cable glands M20 | IP 65 |
| Rated operating current at AC1 230V | 16A |
| Rated operating current at AC1 400V | 10A |
| Rated operating current at AC15 230V | 6A |
| Rated operating current at DC13 230V | 0,1A |
| Permissible motor power 1 230V | 0,55 kW |
CONDER FF4-16 VdS
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