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141-0574 | Siemens Differential Static Pressure Airflow Switch
- Regular price
- $79.00
- Sale price
- $79.00
- Regular price
-
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Product Description P/N: 141-0574
Description
The Siemens 141-0574 is a differential static pressure airflow switch designed for HVAC systems. It features a field-adjustable setpoint range of 0.05" to 1.0" WC, SPDT auto-reset contacts, and operates within a -40°F to 180°F ambient temperature range.
Technical Specifications
| Condition | New/Never Used Surplus |
|---|---|
| Brand | Siemens |
| Category |
Level and Flow Switches
|
| Part Number | 141-0574 |
| Subcategory |
Flow Control Switches
|
| Function | Differential Static Pressure Detection |
| Switch Type |
SPDT (Single-Pole Double-Throw)
|
| Reset Type |
Auto Reset
|
| Setpoint Range |
0.05 in. W.C. to 1.0 in. W.C.
|
| Maximum Pressure |
1/2 PSI
|
| Voltage Rating |
125–277 VAC
|
| Current Rating |
15 Amps
|
| Weight | 0.45 kgs |
Information About 141-0574
The Siemens 141-0574 is a differential static pressure airflow switch designed for HVAC applications. It senses static pressure differences and actuates electrical circuits when the setpoint is reached, providing positive proof of airflow or detecting high differential pressures associated with dirty air filters or similar maintenance alarms.
Key Features:
-
Switch Type: SPDT (Single-Pole Double-Throw)
-
Reset Type: Auto Reset
-
Setpoint Range: Field adjustable from 0.05" to 1.0" WC (12.5 Pa to 250 Pa)
-
Switching Differential: Approximately 0.06" to 0.6" WC (15 Pa to 150 Pa)
-
Accuracy at 1" WC: ±0.2" WC (±50 Pa)
-
Maximum Overpressure: 0.5 psi (3.4 kPa)
-
Electrical Ratings: 15 A at 120–277 VAC (non-inductive); 300 VA pilot duty
-
Ambient Temperature Range: -40°F to 180°F (-40°C to 82°C)
-
Mounting Position: Diaphragm in any vertical plane
-
Conduit Opening: One 1/2-inch conduit connection
-
Sample Line Connectors: Two connectors with nuts and ferrules for 1/4-inch OD tubing
-
Material: Aluminized steel
-
Certifications: UL and CSA listed
This airflow switch is suitable for use in HVAC systems to monitor fan operation, detect clogged filters, or ensure airflow in ducts. Its auto-reset feature makes it ideal for applications where automatic recovery is desired without manual intervention.
Description
The Siemens 141-0574 is a differential static pressure airflow switch designed for HVAC systems. It features a field-adjustable setpoint range of 0.05" to 1.0" WC, SPDT auto-reset contacts, and operates within a -40°F to 180°F ambient temperature range.
Technical Specifications
| Condition | New/Never Used Surplus |
|---|---|
| Brand | Siemens |
| Category |
Level and Flow Switches
|
| Part Number | 141-0574 |
| Subcategory |
Flow Control Switches
|
| Function | Differential Static Pressure Detection |
| Switch Type |
SPDT (Single-Pole Double-Throw)
|
| Reset Type |
Auto Reset
|
| Setpoint Range |
0.05 in. W.C. to 1.0 in. W.C.
|
| Maximum Pressure |
1/2 PSI
|
| Voltage Rating |
125–277 VAC
|
| Current Rating |
15 Amps
|
| Weight | 0.45 kgs |
Information About 141-0574
The Siemens 141-0574 is a differential static pressure airflow switch designed for HVAC applications. It senses static pressure differences and actuates electrical circuits when the setpoint is reached, providing positive proof of airflow or detecting high differential pressures associated with dirty air filters or similar maintenance alarms.
Key Features:
-
Switch Type: SPDT (Single-Pole Double-Throw)
-
Reset Type: Auto Reset
-
Setpoint Range: Field adjustable from 0.05" to 1.0" WC (12.5 Pa to 250 Pa)
-
Switching Differential: Approximately 0.06" to 0.6" WC (15 Pa to 150 Pa)
-
Accuracy at 1" WC: ±0.2" WC (±50 Pa)
-
Maximum Overpressure: 0.5 psi (3.4 kPa)
-
Electrical Ratings: 15 A at 120–277 VAC (non-inductive); 300 VA pilot duty
-
Ambient Temperature Range: -40°F to 180°F (-40°C to 82°C)
-
Mounting Position: Diaphragm in any vertical plane
-
Conduit Opening: One 1/2-inch conduit connection
-
Sample Line Connectors: Two connectors with nuts and ferrules for 1/4-inch OD tubing
-
Material: Aluminized steel
-
Certifications: UL and CSA listed
This airflow switch is suitable for use in HVAC systems to monitor fan operation, detect clogged filters, or ensure airflow in ducts. Its auto-reset feature makes it ideal for applications where automatic recovery is desired without manual intervention.
