Vertical Float Switch
Miniature Stainless Steel Vertical Float Switch - Image 2
Miniature Stainless Steel Vertical Float Switch - Image 3
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Vertical Float Switch

Miniature Stainless Steel Vertical Float Switch

FS-410

Miniature Vertical Float Switch

The FS-410 Miniature Stainless Steel Vertical Float Switch delivers high performance in compact spaces. With a total length under 2.35 inches and a durable 316L stainless steel construction, it withstands extreme temperatures up to 500°F (260°C). Available in standard and high-temperature models, it features user-reversible NO/NC operation for flexible control. Certified for hazardous locations (CSA Explosion Proof) and NSF 169 food safety, the FS-410 is ideal for applications in food and beverage, chemical processing, and wastewater treatment. Its 316L SS stem and float, 300 psi pressure rating, and NEMA 4X enclosure ensure long-lasting reliability.

  • Compact & Efficient: Extremely compact size
  • Built to Last: Reliability/long switch life
  • Shock Resistant: Shock resistive construction
  • Versatile Use: Can be used in a wide range of liquids
  • High-Temperature Performance: Operating temperatures up to 500° F (260° C)
  • Reliable Performance: Switch rated for 100W
  • Certified Safety: NSF 169 certified & CSA Explosion Proof (Standard Temp) and General Use (High Temp)

ⓘ
  • Pressure Rating: 300 psi (20.7 bar)
  • Maximum S.G.: 0.7
  • N.O. Actuation: 0.130” ± 0.015” (3.30 mm ± .38 mm)
  • N.C. Actuation: 0.115” ± 0.015” (2.92 mm ± .38 mm)
  • Hysteresis: 0.060” ± 0.010” (1.52 mm ± .25 mm)
  • Operating Temp.:
    • FS-410-S: 40º to 368ºF (-40º to 187ºC)
    • FS-410-HT: 40º to 500ºF (-40º to 260ºC)
  • Liquids: Chemicals, Food, Potable Water
  • Switch Rating:
    • Max Capacity: 100 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 Expectancy: 10^6 – 10^8 (# of actuations; dependent on load)
  • Lead Wires: #22 AWG, PTFE 24 – 200 in. (610 – 5080 mm)
  • Material:
    • Stem: 316L SS
    • Float: 316L SS
    • Retainer: 316L SS
  • Mounting: Vertical
  • CSA/cCSAus Contract #237484:
    • FS-410-S:
      • Explosion Proof
      • 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
    • FS-410-HT: General Use
    • Single Seal
  • NSF 169: Yes
  • Enclosure Rating: NEMA 4X
What applications is the FS-410 suitable for?

The FS-410 is designed for a variety of demanding applications, including food and beverage processing, chemical processing, and water/wastewater treatment. Its CSA explosion-proof certification also makes it ideal for hazardous locations.

The FS-410 is constructed from durable 316L stainless steel for both the stem and float, ensuring corrosion resistance and long-term reliability in harsh environments.

The FS-410 can withstand extreme temperatures up to 500°F (260°C), making it an excellent choice for high-temperature applications.

Yes, the FS-410 is NSF 169 certified, making it compliant with food and beverage industry safety standards.

With a total length under 2.35 inches, the FS-410 is ideal for applications with limited space while maintaining high performance.

CERTIFICATION

CSA – General, Explosion Proof, NSF 169
SWITCH POINTS

NO/NC Switch
SWITCH TYPE

Minature, Stem Mounted
ENCLOSURE PROTECTION

NEMA 4X
INDUSTRY

Food & Beverage

WARRANTY

APG warrants its products to be free from defects in material and workmanship under normal use and service of the product for 24 months from the date of shipment from APG, unless otherwise specified by APG in writing. Read our full warranty policy HERE.

RETURNS

Returns and allowances must be authorized by APG in advance, which authorization may be granted or withheld by APG in APG’s sole and absolute discretion. Read our full return policy HERE.

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