M3326-NPT Subminiature Float Switch (Normally Closed)

Compact polypropylene float switch for dependable liquid level detection with fail-safe operation.
- Compact 1/8″ NPT subminiature design
Polypropylene resists harsh fluids
Fail-safe normally closed float switch
The M3326-NPT Subminiature Float Switch is engineered for compact, reliable liquid level detection in industrial settings—from food processing and chemical tanks to HVAC systems. Its FDA-compatible polypropylene construction and approvals (CE, cULus) ensure safe, durable performance under demanding conditions. MadisonSensor recommends requesting a quote to verify pricing and specs, and offers custom-engineered solutions tailored to your application.
| Sensor Type | Float |
|---|---|
| Orientation | Vertical |
| Mounting Type & Size | 1/8" NPT |
| Float Material | Polypropylene |
| Stem Material | Polypropylene |
| Switch Logic | Normally Closed |
| Switch Rating | 15 WATT SPST |
| Electrical Ratings | 120 VAC, 0.12A; 100 VDC, 0.10A; 24 VDC, 0.30A; 12 VDC, 0.30A |
| Temperature (Max-Celsius) | 105 |
| Temperature (Max-Fahrenheit) | 221 |
| Maximum Pressure (BAR) | 4 |
| Maximum Pressure (PSI) | 50 |
| Minimum Media SG | 0.75 |
| Electrical Termination | 24", 22 AWG, Teflon insulated |
| Float Diameter | 0.59" |
| Slosh Shield | No |
| Approvals | CE, cULus E54633 |
| Lead Time | 10 Business Days |
| Warranty | 1 Year |
