Explosion Proof Stainless Steel Vertical Float Switch APG FS-400 Series

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Explosion Proof Stainless Steel Vertical Float Switch APG FS-400 Series is certified for use in Class I Division 1 / 2, Class II Division 1 / 2, Class III hazardous locations. Backed up with NFC and NEMA 4x approvals. Designed for vertical mounting installation. It features single machined stems out of 316L SS, operating temperatures up to 500° F, and a 100 W switch, compact size from top to bottom, reversible switch orientation and single seal.

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$6857

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Explosion Proof Stainless Steel Vertical Float Switch APG FS-400 Series

  • Class I Division 1 / 2
  • Class II Division 1 / 2
  • Class III
  • NEMA 4x
  • NSF 169 certified
  • Compact size
  • Reliability / long switch life
  • Shock resistive construction
  • Switch rated for 100 W
  • Can be used in a wide range of liquids
  • Operating temperatures up to 500° F (260° C)
  • CSA Explosion Proof (Standard Temp) and General Use (High Temp)
  • Vertical mounting
  • 316L SS material
  • Made in the USA

Versions

FS-400-S-2463

  • SS Stem and Float, Standard Temp., 0.6 SG, 1/4″ NPTM, 24″ Wires

FS-400-HT-24

  • SS Stem and Float, High Temp., 0.6 SG, 1/4″ NPTM, 24″ Wires

FS-400-S-48

  • SS Stem and Float, Standard Temp., 0.6 SG, 1/4″ NPTM, 48″ Wires

FS-400-HT-48

  • SS Stem and Float, High Temp., 0.6 SG, 1/4″ NPTM, 48″ Wires

Introducing compact, durable, easy to use the Explosion Proof Stainless Steel Vertical Float Switch APG FS-400 Series is certified for use in Class I Division 1 / 2, Class II Division 1 / 2, Class III hazardous locations. Backed up with NFC and NEMA 4x approvals. With all stainless steel wetted materials, operating temperatures up to 500° F, and a 100 W switch, the series FS-400 float switch fits a wide range of applications in two standard configurations.

Their compact size — less than 3.5” from top of threads to end of stem — all stainless steel wetted materials, and user-reversible switch orientation, make them an easy choice for OEM, water and wastewater and chemical applications.

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

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 368° F (-40° to 187° C), and the FS-400-HT extends that range to -40° to 500° F (-40° to 260° C)

Certifications

  • FS-400-S switches carry CSA Explosion Proof certifications, while FS-400-HT models are certified for General Use. All FS-400 switches are NSF 169 certified

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 Applications

  • C I, D1 Hazardous Locations
  • Food / Beverage
  • Chemical
  • Water / Wastewater

Specifications

SeriesFS-400
ModelFS-400-SFS-400-HT
Switch action for the FS-400 is reversible.
Standard is NO, user reversible for NC.
Performance
Pressure Rating200 psi (13.8 bar)500 psi (34.5 bar)
Minimum S.G.0.6
N.O. Actuation0.220” ± 0.015” (5.59 mm ± .38 mm)
N.C. Actuation0.160” ± 0.015” (4.06 mm ± .38 mm)
Hysteresis0.070” ± 0.010” (1.78 mm ± .25 mm)
Environmental
Operating Temp.-40º to 368ºF (-40º to 187ºC)-40º to 500ºF (-40º to 260ºC)
LiquidsChemicals, Food, Potable Water
Electrical
Switch Rating
Max Capacity100 W (resistive load only)
Max Current (AC, 50/60 Hz)240 VAC: 0.416 A; 120 VAC: 0.833 A; ≤ 100 VAC: 1 A
Max Current (DC)120 VDC: 0.833 A; ≤ 100 VDC: 1 A
Life Expectancy106 -108 (# of actuations; depedant on electrical load)
Lead Wires#22 AWG, Teflon 24 - 99 in. (610 - 2515 mm)
Physical
Material
Stem316L SS
Float316L SS
Retainer316L SS
MountingVertical
Certification
CSA/cCSAus Contract #237484Explosion ProofGeneral Use
Class I, Div 1 & 2, Groups A, B,C, & D, T3--
Class II, Div. 1, Groups E, F, T200°C--
Class II, Div. 2, Groups F, G, T200°C--
Class III--
Ta -40° C to 187° C--
Single Seal
NSF 169Yes
Enclosure RatingNEMA 4X

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