Float Switches Mini-Float Sensor MF Series is a float switch that turns up and down using the weight as the fulcrum. It is designed to be the smallest possible size. It is available in two types; contact “a”(normally-open contact) and contact “b” (normally-close contact). Oil and chlorine resistant cable is used.
| Model | TSURUMI MC-3 | ||
| Item | MF-3A | MF-3B | |
| Eletric characteristics | Breaking capacity | 50VA AC | |
| Max.current | 2A AC | ||
| Working voltage | 30V AC | ||
| Switch | Contact | a (normally-open) | b (normally-close) |
| Type | Microswitch | ||
| Mechanical characteristics | Proof pressure (static) | 98kPa (1.0kgf/cm²) | |
| working temperature range | 0 to 50°c | ||
| Cable | Cores x area | 2 x 0.3 mm² | |
| Outside diameter | 5.3 mm | ||
| Standard length | 6,10,15,20,25,30m | ||
| Weight | 98g (Float only) | ||
| No. | Components | Material |
| 1 | Retaining belt | Nylon |
| 2 | Cable clamp | ABS Resin |
| 3 | Cable | CSPE |
| 4 | Intermediate weight | ABS Resin |
| 5 | Screw and nut | 304 Stainless Steel |
| 6 | Float | ABS Resin |





