SIEMENS QBM81-5 Differential Pressure Switch
Enhance system safety with precise differential pressure monitoring.
The SIEMENS QBM81-5 Differential Pressure Switch is engineered to detect air filter clogging and fan belt breakage in HVAC installations. Moreover, it performs precise measurements in the 0.5–5 mbar range. Consequently, it plays a critical role in systems aiming to improve energy efficiency.
This switch operates with a SPDT contact for safe switching at the set pressure. In addition, its compact design allows for quick and easy installation. The IP54 protection class makes it resistant to dust and water splashes, ensuring reliable performance in harsh industrial environments. Furthermore, its mechanical life exceeds 1 million cycles.
SIEMENS QBM81-5 Differential Pressure Switch — Technical Specifications
Typical applications include ventilation and air conditioning units, clean rooms, and kitchen hoods. It is also widely used in industrial air filtration systems and fan/duct pressure control panels. Therefore, it serves a broad range of industries requiring reliable pressure monitoring.
Key Advantages
- High measurement accuracy in the 0.5–5 mbar range
- Compact design and mounting bracket for quick installation
- Siemens quality with mechanical life exceeding 1 million cycles
Applications
- Filter clogging monitoring in ventilation and air conditioning units
- Pressure control in clean rooms and kitchen hoods
- Flow monitoring in industrial air filtration systems
In conclusion, the SIEMENS QBM81-5 Differential Pressure Switch is the ideal choice for reliable pressure management in your HVAC systems. ORFA Industrial has supplied this product as an authorized distributor since 1985. ORFA supplies worldwide and provides technical support and pricing upon request.
ORFA INDUSTRIAL PRODUCTS INDUSTRY AND TRADE INC.
Your Reliable Partner in Industrial Flow Technologies
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