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Stainless Steel Horizontal Float Switch

FS-500

DESCRIPTION
Features

Stainless Steel Horizontal Float Switch

The FS-500 stainless steel horizontal float switch offers long-lasting, dependable performance with corrosion-resistant 316L stainless steel wetted materials. Featuring a reversible switch orientation, multiple mounting options, and CSA & NSF 169 certifications, it is designed for diverse industrial applications, including food and beverage processing, chemical handling, and wastewater management.

Three Mounting Options: Dual 1/2" NPTM, 1/2" NPTM & 1/4" NPTM, or Bulkhead mount (1/2 - 13 threads).
Certified for Safety: CSA explosion-proof (standard temperature, dual-NPTM models) and NSF 169 approved.
100W Switching Capacity: Rated for 100W resistive loads, up to 120 VDC or 240 VAC.
Versatile Applications: Ideal for hazardous locations (Class I, Div 1), water/wastewater, and chemical processing.
Temperature & Pressure Ratings: Standard models operate up to 368°F (187°C), while high-temperature models handle up to 500°F (260°C). Dual NPTM models withstand up to 300 psi.

Description
Additional information

FS-500 Datasheet

FS-500 Install Guide

FS-500 CSA Certificate

Performance

Performance:
- Pressure Rating: See FS-500 Datasheet for pressure rating details.
- Minimum S.G.: 0.
- Actuation Angle: 10° ± 3°
- Hysteresis: 8° ± 1°

Environmental

See FS-500 Datasheet for environmental details.

Electrical

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 electrical load)
Lead Wires: #22 AWG, PTFE 24 – 99 in. (610 – 2515 mm)

Physical

Material:
- Stem: 316L SS
- Float: 316L SS
- Retainer: 316L SS
Mounting: Horizontal

Certifications

See FS-500 Datasheet for certification details.

What is the FS-500 float switch used for?

The FS-500 is a stainless steel horizontal float switch designed for industrial liquid level control. It is commonly used in hazardous locations, food and beverage processing, chemical handling, and water/wastewater treatment applications.

What materials are used in the FS-500 float switch?

The FS-500 features corrosion-resistant 316L stainless steel wetted materials, ensuring durability and reliability in harsh environments.

What are the mounting options for the FS-500?

The FS-500 is available with three mounting options:

Dual 1/2″ NPTM
1/2″ NPTM & 1/4″ NPTM
Bulkhead mount (1/2 – 13 threads)

Can the FS-500 be used in food and beverage applications?

Yes, the FS-500 is NSF 169 certified, making it safe for use in food and beverage processing environments.

Can the switch orientation be adjusted?

Yes, the FS-500 features a reversible switch orientation for added installation flexibility.

Does the FS-500 come in different configurations?

Yes, multiple FS-500 models are available with varying mounting styles, wire lengths, and temperature ratings. Use the float switch number configurator to find the best option for your application.

CERTIFICATION	CSA – General, Explosion Proof, NSF 169
SWITCH POINTS	NO/NC Switch
SWITCH TYPE	Horizontal Float, Stem Mounted
ENCLOSURE PROTECTION	NEMA 4X
INDUSTRY	Chemical, Food & Beverage, Industrial Automation, Oil & Gas, Water & Wastewater

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.

Stainless Steel Horizontal Float Switch