TSURUMI MF Series Float Switch
Float Switch TSURUMI MF-3 Series Mini-Float Sensor for Water Level Detection – A sensor designed for water level monitoring
The MF Series is a float switch that moves up and down using a weight as its central balancing point. It is compact in size, making it suitable for use in confined spaces. The switch is available in two contact types:
Contact “a” (Normally Open – NO): Closes when activated.
Contact “b” (Normally Closed – NC): Opens when activated.
The MF Series uses oil-resistant and chlorine-resistant cables for durability in various applications.
Features:
Compact float size.
Two contact types available:
Contact “a” (Normally Open – NO).
Contact “b” (Normally Closed – NC).
Ideal for high/low water level alarm systems.
Two float switches can be used when connected to a control panel for automatic pump operation.
Applications:
Automatic wastewater pumps, etc.
Perfect for water level alarms, such as high-level or low-level warnings.
Standard Specifications
| Item / Model | MF-3 | ||
|---|---|---|---|
| MF-3A | MF-3B | ||
| Electric characteristics |
Breaking | 50VA AC | |
| capacity | |||
| Max. current | 2A AC | ||
| Working | 30V AC | ||
| voltage | |||
| Switch | Contact | “a”(normally-open) | “b”(normally-close) |
| Type | Microswitch | ||
| Mechanical characteristics |
Proof pressure | 98kPa (1.0 kgf/cm2) | |
| (static) | |||
| Working | 0 to 50°C | ||
| temperature | |||
| range | |||
| Cable | Cores × area | 2×0.3mm2 | |
| Outside | 5.3mm | ||
| diameter | |||
| Standard length | 6, 10, 15, 20, 25, 30m | ||
| Weight | 98g (Float only) | ||
Dimensions and Structure
| 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 |
Additional illustrative images
