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

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 switch point adjustable (bar)	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