The contact protection relays are universal measuring transducers, which
input signals (resistance values) with "Namur" specification (DIN EN 60947).
Namur" specification (DIN EN 60947) into switching signals of floating
output contacts.
Protection class EN60529
clamp
:
IP20
Housing
:
IP40
Technical Data
Operating temperature
:
-20...+60 °C
Storage temperature
:
-30...+80 °C
Output contacts
:
potentialfrei
Switching voltage
:
min. 5 V, max. 250 V AC / 150 V DC
Switching current
:
min. 5 mA, max. 5 A AC / 5 A DC
Switching capacity
:
min. 300 mW, max.100 VA / max. 50 W
Stainless steel ball 61 mm Ø
:
max. 20 bar | 0,65 g/cm³
Stainless steel cylinder 44 mm Ø
:
max. 15 bar | 0,76 g/cm³
min. contact gap type 03
:
75 mm
min. contact gap type 04
:
85 mm
min. contact gap type 09
:
75 mm
Switching contacts and switching capacity
Changeover contact
:
max. 3x | 60W/VA
normally open
:
max. 5x | 100 W / VA
Normally closed contact
:
max. 3x | 60 W/VA
QFS-5x | QFS-6x
Teflon float switch for all kinds of liquids up to 150°C
The float of the QFS-50 and QFS-60 float switches is made of Teflon. Inside the float, one or two reed contacts with a movable permanent magnet are inserted as a switching element.