M8000B Miniature Float Switch

Mini polypropylene float switch (3/8″ UNC), NC SPST logic, rated to 221 °F/100 PSI.
Polypropylene float & stem—FDA-approved
Normally-closed, 30 W SPST switch logic
Compact 3/8″ UNC mount—rated to 221 °F / 100 PSI
The M8000B Miniature Float Switch is a compact, durable level sensor featuring an FDA-approved polypropylene float and stem, ideal for acidic, alkaline, and food-service environments. Designed for side or tank wall mounting with a 3/8" UNC fitting, it offers reliable normally-closed SPST behavior at up to 100 PSI and 221 °F. With CE, cULus, and NSF/ANSI approvals, plus fast 1-day availability and a 1-year warranty, MadisonSensor recommends requesting a quote to confirm pricing and specifications—and stands ready to supply custom solutions tailored to your needs.
| Sensor Type | Float |
|---|---|
| Orientation | Vertical |
| Mounting Type & Size | 3/8-16 UNC |
| Float Material | Polypropylene |
| Stem Material | Polypropylene |
| Switch Logic | Normally Closed |
| Switch Rating | 30 WATT SPST |
| Electrical Ratings | 240V AC, 0.14A; 120V AC, 0.28A; 120V DC, 0.07A; 24V DC, 0.28A |
| Temperature (Max-Celsius) | 105 |
| Temperature (Max-Fahrenheit) | 221 |
| Maximum Pressure (BAR) | 7 |
| Maximum Pressure (PSI) | 100 |
| Minimum Media SG | 1.00 |
| Electrical Termination | 24”, 22 AWG, MTW insulated |
| Float Diameter | 1" |
| Slosh Shield | No |
| Approvals | CE, cULus E54633, NSF/ANSI 169 |
| Lead Time | 1 Business Day |
| Warranty | 1 Year |
