Mechanical wind vane switch RHEASREG® WFS, paddle switch, flow sensor or vane switch relay. It is suitable for flow monitoring of gaseous, non-aggressive media in ventilation and air conditioning ducts, in air intake and exhaust devices of ventilators or electric heating registers (also for contaminated, oily air) or as a flow controller and airflow monitor.
|Switching capacity (Contact load)||15 (8) A; 24…250 V ACat 24 V AC min. 150 mA|
|Operating difference||≥ 1 m/ s|
dust-proof micro switch
as single-pole potential-free changeover contact
|Electrical connection||0.14 - 1.5 mm² via terminal screws|
material polyamide, 30 % glass-globe-reinforced,
colour traffic white (similar to RAL 9016)
|Base body||galvanised steel|
|Vane||stainless steel, 1.4303, V2A|
|Housing dimensions||108 x 70 x 73,5 mm (Thor 2)|
|Housing temperature||–40...+85 °C|
|Cable gland||M 20 x 1.5; including strain relief|
|Dimensions||108 x 70 x 73,5 mm (Thor 2)|
|Protection class||I (according to EN 60 730)|
|Protection type||IP 65 (according to EN 60 529)|
EMC directive 2014/ 30/ EU,
low-voltage directive 2014/ 35/ EU
Contact 1 - 3 breaks when flow rate drops
to the preset value.
Simultaneously, contact 1 - 2 closes and
can be used as signal contact.
Device is factory-set to the minimum switch-off
value, which can be increased by turning the range
adjusting screw clockwise. Installation: vertical in horizontal air ducts.
Min. smoothing distance = 5 x duct diameter
upstream and downstream of vane. For airspeeds
> 5 m/ s, vane is to be trimmed at the marked
spots. Thereby the minimum switch-off value
increases to approx. 2.5 m/ s and the minimum
switch-on value to approx. 4 m/ s.
|PWFS-08||Stainless steel vane for vane switch||Stainless steel vane for vane switch||7700-0010-2000-000||15,70 €|