Condensation control switch KW
temperature Luftfeuchtigkeit

Condensation control switch HYGRASREG® KW

Product group: WG01B

In Stock

Usually ships in 1 to 3 days
108,78 €
129,45 € incl. VAT + shipping


Condensation control switch HYGRASREG® KW
Patented quality product (pro-dynamic cross-convection, patent no. DE 10 2012 015 726.6)
The sensor device is installed on cooling ceilings, cooling or cold-water pipes and cooled surfaces, and has been designed to prevent the formation of condensation. It reliably detects the formation of dew by means of its humidity and temperature sensor (no conductivity measurement). Thanks to its measuring method of pro-dynamic cross-convection it yields precise measuring results (with LED status indicator). Dew point temperature is the temperature at which the air reaches the state of saturation and water vapour starts to condensate. The KW condensation control switch can be operated as a monitor on cooling ceilings or pipes so that the switching output is activated e.g. to start a heating system or initiate other actuators when dew builds up on the cooling ceilings of the property to be monitored.

Technical details

Voltage supply
24 V AC (± 20 %) and
15…36 V DC
approx. 93 % RH
Power consumption
< 1.1 VA/ 24 V DC ; < 2.2 VA/ 24 V AC
Data points
Relative humidity [% RH]
potential-free changeover contact (24 V), 1 A ohmic load
Sensor protection
membrane filter
clean air and
non-aggressive, non-combustible gases
Process connection
endless metal strap with metal tightener,
300 mm, for pipes up to 3 ''
(included in scope of delivery)
Electrical connection
0.14 - 1.5 mm² via terminal screws
Cable connection
cable gland, plastic (M 16 x 1.5; with strain relief, exchangeable, max. inner diameter 10.4 mm) or
M12 connector according to DIN EN 61076-2-101 (optional on request)
Housing dimensions
72 x 64 x 43.3 mm
Cable gland
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 10.4 mm
Protection class
III (according to EN 60 730)
CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
The relay output is triggered (contact 13 -11 closed)
if the switchpoint (93 % r.H.) is not reached
and opens (contact 12 -11 closed) in the event of a fault
(power failure, condensation). LED short pulses =
relay active switchpoint not reached
ACTUAL humidity < 93 % r.H. (no condensation) LED long pulses =
relay inactive switchpoint exceeded
ACTUAL humidity > 93 % r.H. (condensation)