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| Categories | Low Voltage Protection Devices | 
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| Description: | SOR Pressure Switches 103 AD- EF 212 - N5 -C1A- YY 102/103 Differential Pressure Switches | 
| Housing: | NN - aluminum; L - cast iron | 
| Switching Element: | SPDT; K - 15 amps @ 250 VAC | 
| Pressure Port: | 1/4” NPT(F) | 
| Diaphragm: | N4 - primary (wetted) | 
| Company Info. | 
| Hontai Machinery and equipment (HK) Co. ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
103 AD- EF 212 - N5 -C1A- YY 102/103 Differential Pressure Switches
SOR Pressure Switches
The SOR pressure switches in this catalog are suitable for a variety of process applications.
The 102 is suited for low-to-high differential pressure process or fluid power applications where high and varying static pressures, high overrange, proof, shock pressure or cycle rates are expected. The 103 is suited for low-tomedium differential pressure process or fluid power applications where similar system behavior is expected.
| psid (in. wc) | |
| Model Number | |
| 103W1 - K212 - N4 - C1A | (7 to 100) | 
| 103W1 - K502 - N4 - C1A | (20 to 150) | 
| 103W1 - K805 - N4 - C1A | (100 to 1000) | 
| 102W1 - K912 - P1-C1A | 5 to 25 | 
| 102W1 - K903 - P1 - C1A | 8 to 40 | 
| 102W1 - K905 - P1 - C1A | 10 to 60 | 
| 102W1 - K603 - P1 - C1A | 20 to 100 | 
| 102W1 - K403 - P1 - C1A | 40 to 200 | 
| 102W1 - K405 - P1 - C1A | 50 to 300 | 
| 102W1- K305 - P1 - C1A | 100 to 500 | 
| 102W1 - K105 - P1 - C1A | 500 to 2500 | 

| Standard Construction | ||
| Housing | W1 (weatherproof) | Aluminum | 
| AD (explosion proof) | 316SS | |
| Switching Element | K | SPDT 15A @ 250 VAC | 
| EF | SPDT 5A @ 250 VAC | |
| Diaphragm | N4 103-212 | Teflon-Coated Polyimide | 
| 103-502 | Kapton Polyimide Film | |
| 103-805 | Kapton Polyimide Film | |
| O-Ring | P1 | Buna-N | 
| Pressure Port | C1A | 1/4” NPT(F); 316SS | 
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