• APG's FS-400 Stainless Steel Float Switch
  • FS-400 Stainless Steel Float Switch
  • Stainless Steel Float Switch from APG Sensors
  • Single Point Float Switch | APG Sensors
  • APG Sensors Single Point Stainless Steel Float Switch

Stainless Steel Vertical Float Switch

FS-400

Compact, Durable, Easy to Use

With all stainless steel wetted materials, operating temperatures up to 500° F, and a switch rated for VDC and VAC operation, the series FS-400 float switch fits a wide range of applications in two standard configurations.

Description

Compact Size
From the top of the mounting threads, to the bottom of the stem, the FS-400 is less than 3.5" long, and the float is just over 2" wide.

Temperature Ranges
The FS-400-S has an operating temperature range of -40° to 383° F (-40° to 195° C), and the FS-400-HT extends that range to -40° to 500° F (-40° to 260° C)!

User Reversible Operation
FS-400 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-400-S-M1-M1-0.6-P0-24 Stainless Steel Stem and Float, Standard Temperature, 0.6 SG, 1/4" NPTM, 24" Wires
FS-400-HT-M1-M1-0.6-P0-24 Stainless Steel Stem and Float, High Temperature, 0.6 SG, 1/4" NPTM, 24" Wires
FS-400-S-M1-M1-0.6-P0-36 Stainless Still Stem and Float, Standard Temperature, 0.6 SG, 1/4" NPTM, 36" Wires
FS-400-HT-M1-M1-0.6-P0-36 Stainless Steel Stem and Float, High Temperature, 0.6 SG, 1/4" NPTM, 36" Wires
FS-400-S-M1-M1-0.6-P0-48 Stainless Steel Stem and Float, Standard Temperature, 0.6 SG, 1/4" NPTM, 48" Wires
FS-400-HT-M1-M1-0.6-P0-48 Stainless Steel Stem and Float, High Temperature, 0.6 SG, 1/4" NPTM, 48" Wires
Datasheets & Downloads
Specifications
 

   Performance

Switch Points
1 NO/NC
Customer Reversible Specific Gravity
Minimum 0.6
Pressure Rating
200 psi (13.8 bar) - Standard
500 psi (34.5 bar) - High Temperature


   Electrical

Switch Rating
60 W
Max Current (AC)
0.14 A @ 240 VAC
0.5 A @ 120 VAC
Max Current (DC)
0.2 A @ 120 VDC
0.5 A @ 24 VDC


   Approvals

Certifications
In Process

   Physical

Mount & Stem Materials
316L SS, 15-7 SS
Float Materials
316L SS
Length
3.44 in. - top of threads to bottom of stem
Width
2.06 in. - float diameter


   Environmental

Operating Temperature
-40 to 383° F (-40 to 195° C) - Standard
-40 to 500° F (-40 to 260° C) - High Temp

 
Product Videos

New Vertical Float Switches from APG | FS-400 & FS-410