Huba 604 Differential pressure switch
Measuring range : 0.2 ... 3 - 50 mbar
Medium temperature : -30 ... 85°C
Switching load : 5 A (at 250 VAC)
Media: Air / Neutral gases
IP rating : IP65
Features
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 platin
Specification
| 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°C); 50 mbar (-30 ... 85°C) |
| 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) |
| Approval | |
| UL | MFHX2/8 or XAAK2/8 |
| DVGW | according to DIN EN 1854 |
| Low Voltage Directive | 2014/35/EU |
| Gas Appliances Directive | 2016/426/EU |
Applications
AHU / CRAC / Mobile hydraulics