Pressure switch FF 4-.. DRH/DDH
Pressure switch FF 4-.. DRH/DDH
Perbunan diaphragm
Pressure connector G 3/8“ Female thread, ALSi 12
Pressure range from 0,11...32 bar
Manual reset
product description Pressure switch FF 4-.. DRH/DDH
Mechanical Pressure switch with perbunan diaphragm and pressure connector G 3/8“ Female thread, ALSi 12
Pressure range from 0,11...32 bar
Ample wiring room
Easy to adjust, upper and lower switch points can be adjusted independently of each other
High repeatability
Easily read scale
Ample wiring room
Easy to adjust, upper and lower switch points can be adjusted independently of each other
High repeatability
Easily read scale
Pressure connector G 3/8“ Female thread, ALSi 12. VDE 0660, IEC 337-1, IEC 553-1
Pressure switch with manual reset DDH = reset min., DRH = reset max.
Change-over contact with manual reset min.(DDH):
If the pressure drops below the set value, contact 1-4 opens and contact
1-2 closes and locks. When the pressure has risen above the set value, the
contact can be unlocked with the manual reset button.
Change-over contact with manual reset max.(DRH):
If the pressure rises above the set value, contact 1-2 opens and contact 1-4
closes and locks. When the pressure has dropped below the set value, the
contact can be unlocked with the manual reset button.
Order reference |
Upper |
Lower switch point adjustable (bar) |
Smallest diff.* (bar) |
Max. operating pressure (bar) |
Max. test pressure (bar) |
Standard setting (bar) |
Part No. |
---|---|---|---|---|---|---|---|
FF 4-2 DRH | 0,11 ... 2 | 0,2 | 20 | 40 | 1,5 | 1010106 | |
FF 4-2 DDH | 0,04 ... 1,89 | 0,1 | 20 | 40 | 0,5 | 1010107 | |
FF 4-4 DRH | 0,22 ... 4 | 0,5 | 24 | 40 | 3,0 | 1010016 | |
FF 4-4 DDH | 0,07 ... 3,75 | 0,2 | 24 | 40 | 1,0 | 1010100 | |
FF 4-8 DRH | 0,5 ... 8 | 1,0 | 30 | 40 | 6,0 | 1010069 | |
FF 4-8 DDH |
0,2 ... 7,5 | 0,4 | 30 | 40 | 2,0 | 1010094 | |
FF 4-16 DRH | 1 ... 16 | 2,0 | 36 | 48 | 12 | 1010110 | |
FF 4-16 DDH | 0,4 ... 15 | 0,8 | 36 | 48 | 4 | 1010101 | |
FF 4-32 DRH | 2 ... 32 | 4,0 | 52 | 64 | 20 | 1010057 | |
* at lower end of range |