About Huba Differential Pressure Switch Model 604.99957 Range 0.2....3 Mbar

Huba Control Differential Pressure Switch Model 604.99957 Range 0.2....3 Mbar
- Model : 604.99957
- Range : 0.2....3 Mbar
- Max : 50 Mbar ( -30T85 )
- Max : 50 Mbar ( -30T75 )
- Made In Switzerland
The Pressure Switches of Type 604 Monitor Filters and Fans in Ventilation Ducts As Well As Air Dampers In Primary/Secondary Controls in Ip 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 & Difference
- Sensor Weight:143g With Type C combination bracket
Field Of Application
- Media:Air Neutral Gas
- Medium Temperature:-30...85C
- Permissible Overload On One Side:75 Mbar-30...75C 50 Mbar-30...85C
Ambient Condition
- Ambient Temperature:-30... 85C
- Storage Temperature:-40...85C
Material
- Housing With Media Contact:PC 10% GF
- Measuring Element With Media Contact:Silicone LSR Tempered At 200C,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 Orientationany: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 Upward 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 HYDRAULIC
Accessories
- Connection Set Straight:For Ventilation Duct Including 2 M Hose Plastic
- Angle Type B
- Combination Bracket Type C
- Snap Ring:For Angle A,B,C Or Direct Mounting For Wall Thickness 1.8...2.1 MM
- Snap Ring:For Angle A,B,C Or Direct Mounting For Wall Thickness 0.8...1.1 MM
- Angle Type A
- Fastening Screw:For Wall Thickness 1-2 MM Screw Length 6 MM Min 2 Screws Required
- Connection Set 90 Angled:For Ventilation Duct Including 2 M Hose Metal
- Calibration Certificate
- Mounting Ring
- Closed Fastening Ring
Additional Information:

Precise Low-Pressure Monitoring
The Huba Model 604.99957 differential pressure switch excels in applications where accurate low-pressure detection is critical. Its sensitivity within the 0.2 to 3 mbar range makes it ideal for protecting sensitive equipment and monitoring air or fluid pressure in HVAC and hydraulic systems. The device's compact design and consistent performance simplify integration into a variety of installations.
Extensive Application Versatility
Engineered for flexibility, this pressure switch is commonly used in Air Handling Units (AHU), Computer Room Air Conditioning (CRAC), and mobile hydraulic machinery. Its practical design allows seamless adaptation for manufacturers, distributors, exporters, and suppliers seeking reliable components in the Indian industrial market.
FAQ's of Huba Differential Pressure Switch Model 604.99957 Range 0.2....3 Mbar:
Q: How do I install the Huba Differential Pressure Switch Model 604.99957?
A: Installation involves connecting the switch to your system's pressure lines within the specified 0.2-3 mbar range. Secure the unit using appropriate mounting accessories, ensure proper electrical connections, and verify setup according to the manufacturer's guidelines for optimal performance.
Q: What are the main benefits of using the Huba Model 604.99957?
A: This switch offers precise low-pressure detection, enhancing protection and efficiency in HVAC systems like AHU and CRAC, as well as mobile hydraulic applications. Its reliable operation, compact size, and one-year warranty ensure low maintenance and long-term value.
Q: Where can I use this pressure switch effectively?
A: It is especially suited for Air Handling Units, CRAC systems, and mobile hydraulic equipment, making it an excellent choice for industrial and commercial settings where accurate pressure monitoring is essential.
Q: What is the process for obtaining after-sales support or warranty claims?
A: For after-sales support or warranty claims (1 year), contact the authorized distributor, exporter, or supplier from whom the switch was purchased. Have your purchase details and product information ready for efficient service.
Q: When should the differential pressure switch be checked or maintained?
A: Regular inspection every six months is advisable to ensure it maintains optimal performance. Check electrical connections and clean the device to avoid dust accumulation, which could affect sensitivity.
Q: How does the Huba Model 604.99957 improve system safety?
A: By accurately monitoring very low differential pressures, it helps detect abnormalities or leaks early, preventing potential system failures and ensuring safe, uninterrupted operation of your equipment.