
Siemens Building Technology 141-0518 Switch
The Siemens 141-0518 141-0518 Airflow Switch is a high-performance differential static pressure switch engineered for precision air monitoring in duct systems. This rugged HVAC pressure controller features a field-adjustable setpoint range of 1.0 to 12.0 inches Water Column (WC), allowing for accurate sensing of pressure variations across fans, filters, and coils. Designed with a Single Pole Double Throw (SPDT) switch configuration, the 141-0518 supports both normally open and normally closed electrical contacts, ensuring seamless integration into varied control sequences. Its automatic reset functionality eliminates the need for manual intervention after pressure normalization, making it ideal for maintaining consistent system safety and efficiency. The unit is housed in durable aluminized steel and is rated for temperatures from -40 to 180 degrees Fahrenheit. With 1/4 inch NPT female sample line connections and a robust 15A electrical rating at 120-277VAC, this Siemens airflow switch provides the reliability necessary for demanding commercial and industrial air handling applications.
Key Benefits- Versatile Range: Field-adjustable setpoint from 1 to 12 inches WC accommodates diverse system requirements.
- Dual Connection Logic: SPDT contacts provide flexibility for proving airflow or monitoring for excessive static pressure.
- Industrial Durability: Constructed with aluminized steel to withstand harsh mechanical room environments.
- Reliable Monitoring: High-accuracy diaphragm senses minute pressure shifts to protect downstream components.
- Standardized Integration: Features 1/4 inch NPT connections for easy pairing with standard pilot tubes and sensing lines.
Can this switch be used to monitor filter loading?
Yes, by measuring the differential pressure across a filter bank, the 141-0518 can signal when the static pressure drop indicates the need for a filter replacement.
What is the proper mounting orientation for this device?
To maintain calibration accuracy, the switch must be mounted with the diaphragm in a vertical plane. Horizontal mounting may affect the setpoint due to the weight of internal components.
Does this unit require a manual reset after a trip?
No, the 141-0518 is an automatic reset model. It will restore electrical contact once the sensed pressure returns within the switching differential range.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $86.10
-65%$86.10
$30.13Siemens Building Technology 141-0518 Switch
The Siemens 141-0518 141-0518 Airflow Switch is a high-performance differential static pressure switch engineered for precision air monitoring in duct systems. This rugged HVAC pressure controller features a field-adjustable setpoint range of 1.0 to 12.0 inches Water Column (WC), allowing for accurate sensing of pressure variations across fans, filters, and coils. Designed with a Single Pole Double Throw (SPDT) switch configuration, the 141-0518 supports both normally open and normally closed electrical contacts, ensuring seamless integration into varied control sequences. Its automatic reset functionality eliminates the need for manual intervention after pressure normalization, making it ideal for maintaining consistent system safety and efficiency. The unit is housed in durable aluminized steel and is rated for temperatures from -40 to 180 degrees Fahrenheit. With 1/4 inch NPT female sample line connections and a robust 15A electrical rating at 120-277VAC, this Siemens airflow switch provides the reliability necessary for demanding commercial and industrial air handling applications.
Key Benefits- Versatile Range: Field-adjustable setpoint from 1 to 12 inches WC accommodates diverse system requirements.
- Dual Connection Logic: SPDT contacts provide flexibility for proving airflow or monitoring for excessive static pressure.
- Industrial Durability: Constructed with aluminized steel to withstand harsh mechanical room environments.
- Reliable Monitoring: High-accuracy diaphragm senses minute pressure shifts to protect downstream components.
- Standardized Integration: Features 1/4 inch NPT connections for easy pairing with standard pilot tubes and sensing lines.
Can this switch be used to monitor filter loading?
Yes, by measuring the differential pressure across a filter bank, the 141-0518 can signal when the static pressure drop indicates the need for a filter replacement.
What is the proper mounting orientation for this device?
To maintain calibration accuracy, the switch must be mounted with the diaphragm in a vertical plane. Horizontal mounting may affect the setpoint due to the weight of internal components.
Does this unit require a manual reset after a trip?
No, the 141-0518 is an automatic reset model. It will restore electrical contact once the sensed pressure returns within the switching differential range.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Siemens 141-0518 141-0518 Airflow Switch is a high-performance differential static pressure switch engineered for precision air monitoring in duct systems. This rugged HVAC pressure controller features a field-adjustable setpoint range of 1.0 to 12.0 inches Water Column (WC), allowing for accurate sensing of pressure variations across fans, filters, and coils. Designed with a Single Pole Double Throw (SPDT) switch configuration, the 141-0518 supports both normally open and normally closed electrical contacts, ensuring seamless integration into varied control sequences. Its automatic reset functionality eliminates the need for manual intervention after pressure normalization, making it ideal for maintaining consistent system safety and efficiency. The unit is housed in durable aluminized steel and is rated for temperatures from -40 to 180 degrees Fahrenheit. With 1/4 inch NPT female sample line connections and a robust 15A electrical rating at 120-277VAC, this Siemens airflow switch provides the reliability necessary for demanding commercial and industrial air handling applications.
Key Benefits- Versatile Range: Field-adjustable setpoint from 1 to 12 inches WC accommodates diverse system requirements.
- Dual Connection Logic: SPDT contacts provide flexibility for proving airflow or monitoring for excessive static pressure.
- Industrial Durability: Constructed with aluminized steel to withstand harsh mechanical room environments.
- Reliable Monitoring: High-accuracy diaphragm senses minute pressure shifts to protect downstream components.
- Standardized Integration: Features 1/4 inch NPT connections for easy pairing with standard pilot tubes and sensing lines.
Can this switch be used to monitor filter loading?
Yes, by measuring the differential pressure across a filter bank, the 141-0518 can signal when the static pressure drop indicates the need for a filter replacement.
What is the proper mounting orientation for this device?
To maintain calibration accuracy, the switch must be mounted with the diaphragm in a vertical plane. Horizontal mounting may affect the setpoint due to the weight of internal components.
Does this unit require a manual reset after a trip?
No, the 141-0518 is an automatic reset model. It will restore electrical contact once the sensed pressure returns within the switching differential range.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












