Excellence Comes in Small Packages
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 383° F (-40° to 195° C), and the FS-410-HT extends that range to -40° to 500° F (-40° to 260° C)!
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.
Common Model Configurations
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 Still 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|
Customer Reversible Specific Gravity
300 psi (20.7 bar)
Max Current (AC)
140 mA @ 240 VAC
280 mA @ 120 VAC
Max Current (DC)
70 mA @ 120 VDC
280 mA @ 24 VDC
Mount & Stem Materials
316L SS, 15-7 SS
2.32 in. - top of threads to bottom of stem
1.17 in. - float diameter
-40 to 383° F (-40 to 195° C) - Standard
-40 to 500° F (-40 to 260° C) - High Temp
New Vertical Float Switches from APG | FS-400 & FS-410