The pressure switches of Type 604 monitor filters and fans in ventilation ducts as well as air dampers in primary/secondary controls in Δp function. The series, divided into five pressure range gradations, impresses with extreme ease of installation, combination brackets, snap-on covers, and screw terminals. Unique is the high adjustment accuracy through individual scale engraving.
Easy to install
User-friendly snap closure for the cover
Cable entry aid
Cable strain relief integrated into PG11
Combination bracket for vertical or horizontal mounting
High adjustment accuracy through individual scale engraving per switch
Long-term stable switching points through trapezoidal bead membrane
Multilayer contact with gold plating
Product feature
Pressure measuring range
0 ... 50 mbar (Relative and difference)
Sensor weight
143 g (With type C combination bracket)
Field of application
Media
Air; neutral gas
Medium temperature
-30 ... 85 °C
Permissible overload on one side
75 mbar (-30 ... 75 ºC); 50 mbar (-30 ... 85 ºC)
Ambient condition
Ambient temperature
-30 ... 85 °C
Storage temperature
-40 ... 85 °C
Material
Housing with media contact
PC 10 % GF
Measuring element with media contact
Silicone LSR (tempered at 200 °C, outgassing-free)
Cover with media contact
PC
Electrical data
Switching load
5 A (at 250 VAC)
Resistive switching load
4 A (at 30 VDC)
Inductive switching load
0.8 A (at 250 VAC); 0.7 A (at 30 VDC)
Switching load GAR Application
1 A (at 250 VAC); 0.2 A (at 30 VDC)
Contact system
Changeover switch
Lifespan
>10000000 Schaltspiele (mechanical)
Installation guide
Installation orientation
any (Recommendation: Vertical, pressure connections downwards; factory adjustment); any (Recommendation: Horizontal, cover down; switching points are approx. 11 Pa lower than the set scale value); any (Recommendation: Horizontal, cover upwards; switching points are approx. 11 Pa higher than the set scale value)