Siemens Switch/relay (pneumatic) Type
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![Siemens 243-0001 Switching Relay, Pneumatic 3-Way, Adj Changeover, 1/8" NPT Thread Ports, 9PSI | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/243-0001_medium.jpg?v=1720021719)
243-0001 | Switching Relay, Pneumatic 3-Way, Adj Changeover, 1 / 8" NPT Thread Ports, 9PSI | Siemens
Brand: Siemens
SKU: 243-0001
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![Siemens 243-0018 Signal Selector, Highest Pressure, Pneumatic, DA, Dual Input, Single Output | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/243-0018_medium.jpg?v=1720021783)
243-0018 | Signal Selector, Highest Pressure, Pneumatic, DA, Dual Input, Single Output | Siemens
Brand: Siemens
SKU: 243-0018
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![Siemens 243-0024 Reverse Acting Relay, Pneumatic, Field Adjustable Spring Range | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/243-0024_medium.jpg?v=1720021771)
243-0024 | Reverse Acting Relay, Pneumatic, Field Adjustable Spring Range | Siemens
Brand: Siemens
SKU: 243-0024
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![Siemens 141-0575 Airflow Switch, Differential Static Pressure, SPST, Manual Reset, 1" to 12" WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/141-0575_medium.jpg?v=1720021376)
141-0575 | Airflow Switch, Differential Static Pressure, SPST, Manual Reset, 1" to 12" WC | Siemens
Brand: Siemens
SKU: 141-0575
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![Siemens 141-0574 Airflow Switch, Differential Static Pressure, SPDT, Auto Reset, 0.05-1.0 in. WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/141-0574_1b1b95e6-7f41-4733-bba8-cbd9c9bf4810_medium.jpg?v=1720021378)
141-0574 | Airflow Switch, Differential Static Pressure, SPDT, Auto Reset, 0.05-1.0 in. WC | Siemens
Brand: Siemens
SKU: 141-0574
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![Siemens 134-1460 Pressure Electric Switch, Heavy-Duty, SPDT, Snap-Acting, NC, Fixed Diff 2.0 psi | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/134-1460_medium.jpg?v=1720021379)
134-1460 | Pressure Electric Switch, Heavy-Duty, SPDT, Snap-Acting, NC, Fixed Diff 2.0 psi | Siemens
Brand: Siemens
SKU: 134-1460
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![Siemens 243-0020 Signal Selector, Lowest Pressure, Pneumatic, DA, Dual Input, Single Output | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/243-0020_medium.jpg?v=1720021720)
243-0020 | Signal Selector, Lowest Pressure, Pneumatic, DA, Dual Input, Single Output | Siemens
Brand: Siemens
SKU: 243-0020
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![Siemens 243-0019 Signal Selector, Lowest/Highest, Pneumatic, DA, Six-Input, Dual Output | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/243-0019_medium.jpg?v=1720021751)
243-0019 | Signal Selector, Lowest / Highest, Pneumatic, DA, Six-Input, Dual Output | Siemens
Brand: Siemens
SKU: 243-0019
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![Siemens 243-0009 Multi-Purpose Relay, Pneumatic, Heavy Duty, Two-Valve Design, DA and RA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/243-0009_medium.jpg?v=1720021735)
243-0009 | Multi-Purpose Relay, Pneumatic, Heavy Duty, Two-Valve Design, DA and RA | Siemens
Brand: Siemens
SKU: 243-0009
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![Siemens 141-0518 Airflow Switch, Differential Static Pressure, SPDT, Auto Reset, 1 to 12" WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/141-0518_medium.jpg?v=1720021380)
141-0518 | Airflow Switch, Differential Static Pressure, SPDT, Auto Reset, 1 to 12" WC | Siemens
Brand: Siemens
SKU: 141-0518
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![Siemens 786-0610 Selector Switch, Commercial, 3-Position | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/786-0610_medium.jpg?v=1720022848)
786-0610 | Selector Switch, Commercial, 3-Position | Siemens
Brand: Siemens
SKU: 786-0610
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![Siemens 786-0600 Selector Switch, Commercial, 2-Position,Click stop for positive positioning | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/786-0600_medium.jpg?v=1720022866)
786-0600 | Selector Switch, Commercial, 2-Position, Click stop for positive positioning | Siemens
Brand: Siemens
SKU: 786-0600
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![Siemens 134-1451 Pressure Electric Switch, Heavy-Duty, DPST, Snap-Acting, 1.5 to 10 psi | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/134-1451_medium.jpg?v=1720021393)
134-1451 | Pressure Electric Switch, Heavy-Duty, DPST, Snap-Acting, 1.5 to 10 psi | Siemens
Brand: Siemens
SKU: 134-1451
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![Siemens 134-1450 Pressure Electric Switch, DPST (NO) Switch Action | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/134-1450_medium.jpg?v=1720021378)
134-1450 | Pressure Electric Switch, DPST (NO) Switch Action | Siemens
Brand: Siemens
SKU: 134-1450
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![Siemens 243-0011 Analog Relay, Pneumatic, Heavy Duty, Multi-Function, 1/8" NPT Ports | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/243-0011_medium.jpg?v=1720021754)
243-0011 | Analog Relay, Pneumatic, Heavy Duty, Multi-Function, 1 / 8" NPT Ports | Siemens
Brand: Siemens
SKU: 243-0011
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![Siemens 243-0010 Balance-Retard Relay, Pneumatic, Heavy Duty, Gradual-Acting, DA and RA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/243-0010_medium.jpg?v=1720021772)
243-0010 | Balance-Retard Relay, Pneumatic, Heavy Duty, Gradual-Acting, DA and RA | Siemens
Brand: Siemens
SKU: 243-0010
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547-323A | RCM FM BAC +/-.25"wc(62.5Pa)0.5%FS | Siemens
Brand: Siemens
SKU: 547-323A