Dungs Pressure switch LGW3A1 129890
SKU 129890
Model LGW3A1
Brand Dungs
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Key specifications
| Protection class (IP) | IP00 |
|---|---|
| Diaphragm material | NBR |
| Construction type | Differential pressure switch |
| Control range | 0.4–3 mbar |
| Storage temperature | -30–85 °C |
| Maximum working pressure | 100 mbar (10 kPa) |
| Ambient temperature | -15–85 °C |
| Working environment temperature | -15–60 °C |
| Ambient temperature, max | 85 °C |
| Body material | polycarbonate |
| Contact rating | 10 A, 250 V AC |
| Supply voltage | 24–250 V |
| Switching element | Microswitch with change-over contact |
| Medium temperature | -15–85 C |
| Switch material | polycarbonate |
| Contact protection material | polycarbonate |
| Setting tolerance | ≤ ±15% |
| Auxiliary power | without auxiliary power |
| Nominal current | 10 A at cos φ 1 |
| Switching current | min. 20 mA |
| Max operating pressure | 100 mbar |
| Pressure connection diameter | 4.6 mm |
| Height with contact protection | 44 mm |
| Country of origin | Germany |
| Ambient temperature, min | -15 °C |
102.36 EUR
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Description
This factory-adjusted differential pressure switch for air, flue, and exhaust gases responds to changes in differential pressure and switches a circuit via a microswitch with change-over contact. It operates without auxiliary power in a control range of 0.4 to 3 mbar, with a setting tolerance of ≤ ±15%. Maximum working pressure is 100 mbar (10 kPa), and the ambient temperature range is -15 to 85 °C (storage -30 to 85 °C). The housing, switch, and contact protection are polycarbonate; the diaphragm is NBR. Protection class is IP00, and the contact rating is 10 A at 250 V AC.
Further details
| Approvals | UL, FM and CSA registrations for North American market |
|---|---|
| Electrical Connection | Flat-type connector 6.3 x 0.8 mm per DIN 46244 |
| Media compatibility | Air and non-aggressive gases, not for industrial combustion gases |
| Membrane | NBK |
| Optional contact | gold-plated silver (Au); suitable for DDC applications: 24 V DC; 0.02 A |
| Switching function | As pressure rises: 1 NC opens, 2 NO closes; as pressure falls: 1 NC closes, 2 NO opens |
Manufacturer documentation
All specifications
| Protection class (IP) | IP00 |
|---|---|
| Diaphragm material | NBR |
| Construction type | Differential pressure switch |
| Control range | 0.4–3 mbar |
| Storage temperature | -30–85 °C |
| Maximum working pressure | 100 mbar (10 kPa) |
| Ambient temperature | -15–85 °C |
| Working environment temperature | -15–60 °C |
| Ambient temperature, max | 85 °C |
| Body material | polycarbonate |
| Contact rating | 10 A, 250 V AC |
| Supply voltage | 24–250 V |
| Switching element | Microswitch with change-over contact |
| Medium temperature | -15–85 C |
| Switch material | polycarbonate |
| Contact protection material | polycarbonate |
| Setting tolerance | ≤ ±15% |
| Auxiliary power | without auxiliary power |
| Nominal current | 10 A at cos φ 1 |
| Switching current | min. 20 mA |
| Max operating pressure | 100 mbar |
| Pressure connection diameter | 4.6 mm |
| Height with contact protection | 44 mm |
| Country of origin | Germany |
| Ambient temperature, min | -15 °C |
Part numbers
| SKU | 129890 |
|---|---|
| Additional article | 363.214.042 |
| Model | LGW3A1 |