Towa Seiden Kogyo Co.
Towa Seiden FSP-T-□ Reed Type Float Switch Compact Mounting Vertical Type (SUS)

Manufacturer: Towa Seiden Kogyo Co., Ltd.
Model: FSP-T-□
Features
The reed-type float switch delivers stable level detection even in harsh tank conditions. Therefore, it maintains reliable performance despite temperature changes, steam, vapor, or internal pressure. Moreover, reed switch control operates without a power supply, which simplifies system design and reduces wiring needs.
In addition, the switch supports many liquid types by allowing flexible selection of wetted materials. For example, users can choose SUS304, SUS316, SUS316L, or corrosion-resistant resin to match specific process requirements. As a result, compatibility improves across diverse industrial applications.
Furthermore, one unit enables multi-point control, so system complexity stays low. Consequently, installation becomes easier while control efficiency increases. Overall, the reed-type float switch offers durability, flexibility, and dependable operation for liquid level management.
Specifications
| Item | FSPV-T-□NP | FSF-T-□N | FSP-T-□N | FSF-T-□ | FSP-□ | FSS-□ |
|---|---|---|---|---|---|---|
| Terminal Box | ||||||
| Material | ADC12 | — | ||||
| Structure | IP65 | — | ||||
| Cable Entry | G3/4 | — | ||||
| Connection | ||||||
| Connection Size | JIS5K80A | JIS5K50A | R2 | JIS5K32A | R1-1/4 | G1/8 |
| Material | PVC | Standard SUS304 / SUS316 available | ||||
| Overall Dimensions | φ48 × H60 | φ49.5 × H48 | φ28 × H27 | |||
| Float | ||||||
| Material | PP | SUS306 or SUS316 | ||||
| Min. Detectable S.G. | ≥ 0.80 | ≥ 0.53 | ≥ 0.70 | |||
| Stem | ||||||
| Outer Diameter | φ22 | φ13 | φ8 (φ9) | |||
| Material | PVC | Standard SUS304 / SUS316 available | ||||
| Electrical Ratings | ||||||
| Contact Rating | DC50 W / AC70 VA | |||||
| Max. Switching Voltage | DC350 V / AC300 V | |||||
| Max. Switching Current | DC0.7 A / AC0.5 A | |||||
| Others | ||||||
| Maximum Length | 3900 mm | 600 mm | ||||
| Max. Detection Points | 5 | 4 | ||||
| Float Pressure Resistance | 0.2 MPa | 0.98 MPa | 1.96 MPa | |||
| Operating Temperature | −10 to 50°C | −10 to 100°C | ||||
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