Towa Seiden FSS-□ Reed Type Float Switch Compact Mounting Vertical Type (SUS)

Manufacturer: Towa Seiden Kogyo Co., Ltd.
Model: FSS-□

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