QFS-20 & QFS-21 float switches have stainless steel floats and one or two reed contacts.
Properties
Protection class EN60529
:
IP68
Material Float
:
VA 1.4571
Material hose
:
Edelstahlwellschlauch (1.4404) mit Edelstahldrahtumflechtung (1.4301)
Operating temperature
:
max. + 150 °C
media density
:
ρ ≥ 0,8g/cm³
Switching system
:
Reed-Schalter
Contact
:
Wechsler, NO, NC
Switching voltage
:
4...250 V AC/DC
Switching current
:
1 mA ...1 A
Switching capacity
:
max. 1A, 60 VA/60 W
Switching hysteresis
:
ca. 100 mm
Switching angle
:
ca. + 20° / – 20°
Operating pressure (QFS-20)
:
max. 15 bar
Operating pressure (QFS-21)
:
max. 6 bar
T200.F
Overfill protection for containers
Level sensors type T-20_.F... are
approved by the DIBt (German
Institute for Structural Engineering) as liquid level limit switches for the overcharge protection of containers for storing water-dangerous liquids.
Connection
ltdata.Polyesterdose
:
ltdata.Aluminiumdose
:
ltdata.Polyethylenanschlusskopf
:
Cable
:
Plug
:
Properties
Protection class EN60529
:
IP 65
connection thread
:
G 1", G 1¼", G 1½", G2", G3”
Union nut
:
G 2¾", S 100x8
Guide tube length
:
max. 6 m
Operating pressure
:
Max. 20 bar
media density
:
ρ ≥ 0,6 g/cm³
Switching hysteresis
:
typ. 2 mm
Switching point tolerance
:
max. 2 mm
Operating temperature
:
atmosphärisch
ltdata.BetriebstemperaturPP
:
max. 90°C
Resistance value
Operational readiness
:
ca. 1 kΩ
overfill alarm
:
ca. 12 kΩ
Switching time
:
ca. 20 ms
ltdata.
:
T204.F
with general building authority approval Z-65.11-404
Properties
connection
:
Polyester Dose | Aluminium Dose
Protection class
:
IP 65 Dose
number of floats
:
max. 4x
Operating temperature
:
max. 135 °C
F-Contact
:
1 / 12 kΩ
Number of additional contacts
:
max. 3x Wechsler | 5x Schließer | 3x Öffner