APG FS-500 Specifications

APG

Stainless Steel
Horizontal Float Switches
Series: FS-500

®

C

US

Series FS-500 Stainless Steel Horizontal Float Switches are durable, versatile oat switches with a wide range of
usage and applications. Three tting congurations and two temperature ranges, all carrying NSF 169 and CSA
approvals, make the Series FS-500 an easy choice for OEM, water and wastewater, and chemical applications. With
their compact size, all stainless steel wetted materials, and reversible switch orientation, FS-500 switches are go­anywhere, use-everywhere switches.

Features

• Compact size

• Reliability/long switch life

• Shock resistive construction

• Can be used in a wide range of liquids

• Operating temperatures up to 500° F (260° C)

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• Switch rated for 100 W

• NSF 169 certied

• CSA Explosion Proof (Standard Temp) and General

Use (High Temp)

Rev. A, 4/10/2019

APG

FS-500 Specications

Series

Model FS-500-S...P1P1

FS-500-S...P1P0

FS-500-HT...P1P1
FS-500-HT...P1P0

FS-500

FS-500-S...P58 FS-500-HT...P58

Performance

Pressure Rating 300 psi (20.7 bar) 100 psi (6.9 bar)

Minimum S.G. 0.6

Actuation Angle

Hysteresis

10° ± 3°

8° ± 1°

Environmental

Operating Temp. -40º to 368ºF

(-40º to 187ºC)

Liquids Chemicals, Food, Potable Water

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

Lead Wires #22 AWG, Teon 24 - 99 in. (610 - 2515 mm)

-40º to 500ºF

(-40º to 260ºC)

6

8

-

(# of actuations; depedant on electrical load)

10

-40º to 368ºF

(-40º to 187ºC)

-40º to 500ºF

(-40º to 260ºC)

Physical

Material

Stem 316L SS

Float 316L SS

Retainer 316L SS

Mounting Horizontal

Certication

CSA/cCSAus Contract #237484 Explosion Proof General 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 Single Seal

NSF 169 Yes Yes

Enclosure Rating NEMA 4X --

--

--

--

Automation Products Group, Inc. | 888.525.7300 | [e-mail] | www.apgsensors.com

®

2

Rev. A, 4/10/2019

APG

Common Model Congurations

1/2" NPT

Model Number Model Description

FS-500-S-M1-M1-0.6-P1P1-24 Stainless Steel Stem and Float, Standard Temperature, 0.6 SG, 1/2”-1/2” NPTM, 24” Wires

FS-500-HT-M1-M1-0.6-P1P1-24 Stainless Steel Stem and Float, High Temperature, 0.6 SG, 1/2”-1/2” NPTM, 24” Wires

FS-500-S-M1-M1-0.6-P1P0-36 Stainless Steel Stem and Float, Standard Temperature, 0.6 SG, 1/2”-1/4” NPTM, 36” Wires

FS-500-HT-M1-M1-0.6-P1P0-36 Stainless Steel Stem and Float, High Temperature, 0.6 SG, 1/2”-1/4” NPTM, 36” Wires

FS-500-S-M1-M1-0.6-P58-48 Stainless Steel Stem and Float, Standard Temperature, 0.6 SG, Bulkhead, 48” Wires

FS-500-HT-M1-M1-0.6-P58-48 Stainless Steel Stem and Float, High Temperature, 0.6 SG, Bulkhead, 48” Wires

6.02"

[152.9mm]

5.38"

[136.6mm]

5"

1/4" NPT

7/8" Hex nut

1/2" NPT

1/2" NPT

0.58"

[14.9mm]

0.83"

[21.1mm]

0.71"
[18.0mm]

2.22"

[56.5mm]

°
0
3

[127.0mm]

3.58"

[91.1mm]

1.94"

[49.4mm]

0.62"

2.33"

[15.9mm]

FS-500...P1P0 (closed)

FS-500...P1P1 (open)

[59.3mm]

0.92"

[23.3mm]

3/4" Hex nut

0.92"

[23.3mm]

[152.8mm]

2.31"

[58.6mm]

11/16" Flats

Silicon Gasket

1/2 - 13 Threads

0.68"
[17.3mm]

°

0

3

0.5"
[12.7mm]

4.80"

[122.0mm]

5.18"

[131.7mm]

6.01"

4.25"

[108.0mm]

4.15"

[105.4mm]

3.97"

[100.9mm]

1.94"

[49.4mm]

0.31"
[7.9mm]

0.62"
[15.9mm]

2.17"
[55.2mm]

FS-500...P58 (closed)

FS-500...P58 (open)

Automation Products Group, Inc. | 888.525.7300 | [e-mail] | www.apgsensors.com

®

3

Rev. A, 4/10/2019

APG

Model Conguration Options

Model Number: FS-500 - _____ - _M1_ - _M1_ - _0.6_ - ____ - ____
A B C D E F

®

A. Operating Temperature

▲

□ S

Standard Range (-40 - 187°C)

□ HT High Temperature Range (-40 - 260°C)*

B. Stem Material

▲

□ M1

C. Float Material

□ M1

316 Stainless Steel

▲

316 Stainless Steel

D. Float Specic Gravity

▲

□ 0.6

E. Fitting Types (Inner - Outer)

□ P1 P1

0.6 Specic Gravity

▲

1/2” NPTM - 1/2” NPTM

□ P1 P0 1/2” NPTM - 1/4” NPTM
□ P58 Bulkhead*

F. Wire Length

□ __ Wire Length in Inches (24 - 99)

Note: *Indicates this option is only available with CSA General

Purpose ratings.

FS-500 Replacements / Accessories

Please order separately, by part number.

Description Part Number

316 SS 3/4” Hex nut for FS-500...P58; Quantity 5 200343

316 SS washer for FS-500...P58; Quantity 5 200344

NSF Silicon Gasket for FS-500...P58; Quantity 5 200345

Automation Products Group, Inc. | 888.525.7300 | [e-mail] | www.apgsensors.com

Document #9005610; Part #200319 Rev. A, 4/10/2019