At less than 2.35 inches (60 mm) in total length, and an all stainless steel construction capable of operating temperatures up to 500° F, the series FS-410 float switch brings high performance to small spaces .
Small Package From the top of the mounting threads, to the bottom of the stem, the FS-410 is less than 2.35" long, and the float is just under 1.2" wide.
Temperature Ranges The FS-410-S has an operating temperature range of -40° to 368° F (-40° to 187° C), and the FS-410-HT extends that range to -40° to 500° F (-40° to 260° C).
Certifications FS-410-S switches carry CSA Explosion Proof certifications, while FS-410-HT models are certified for General Use. All FS-410 switches are NSF 169 certified.
User Reversible Operation FS-410 float switches come standard with Normally Open operation. The e-clip at the bottom of the stem is easily removed to change to orientation of the float, changing the switch operation to Normally Closed.
All common model configurations can be purchased online, click the model number link below. Refer to Model Number Configurator on the datasheet for a full list of configuration options.
| Model Number | Model Description |
|---|---|
| FS-410-S-M1-M1-0.7-P14-24 | Stainless Steel Stem and Float, Standard Temperature, 0.7 SG, 1/8" NPTM, 24" Wires |
| FS-410-HT-M1-M1-0.7-P14-24 | Stainless Steel Stem and Float, High Temperature, 0.7 SG, 1/8" NPTM, 24" Wires |
| FS-410-S-M1-M1-0.7.P14-36 | Stainless Steel Stem and Float, Standard Temperature, 0.7 SG, 1/8" NPTM, 36" Wires |
| FS-410-HT-M1-M1-0.7-P14-36 | Stainless Steel Stem and Float, High Temperature, 0.7 SG, 1/8" NPTM, 36" Wires |
| FS-410-S-M1-M1-0.7-P14-48 | Stainless Steel Stem and Float, Standard Temperature, 0.7 SG, 1/8" NPTM, 48" Wires |
| FS-410-HT-M1-M1-0.7-P14-48 | Stainless Steel Stem and Float, High Temperature, 0.7 SG, 1/8" NPTM, 48" Wires |
Switch Points
1 NO/NC
Customer Reversible
Specific Gravity
Maximum 0.7
Pressure Rating
300 psi (20.7 bar)
Normally Open Actuation
0.130" ± 0.015"
3.30 mm ± 0.38 mm
Normally Closed Actuation
0.115" ± 0.015"
2.92 mm ± 0.38 mm
Hysteresis
0.060" ± 0.010"
1.52 mm ± 0.25 mm
Mount & Stem Materials
316L SS
Float Materials
316L SS
Length
2.32 in. - top of threads to bottom of stem
Width
1.17 in. - float diameter
Switch Rating
100 W (resistive load only)
Max Current (AC, 50/60 Hz)
0.416 A @ 240 VAC
0.833 A @ 120 VAC
1 A @ ≤ 100 VSC
Max Current (DC)
0.833 A @ 120 VDC
1 A @ ≤ 100 VDC
Operating Temperature
Standard
-40 to 368° F (-40 to 187° C)
High Temp
-40 to 500° F (-40 to 260° C)
Enclosure Rating
NEMA 4X
CSA: FS-410-S
Explosion Proof
Class I, Div 1 & 2; Grps A,B,C,D, T3
Class II, Div 1; Grps E,F, T200°C
Class II, Div 2; Grps F,G, T200°C
Class III
Ta -40°C to 187°C
CSA: FS-410-HT
General Use
Single Seal
All Models
NSF 169
All Models
