APG FS-410 Explosion Proof Miniature Stainless Steel Vertical Float Switch

The FS-410-S switches are CSA Explosion Proof certified, while the FS-410-HT variants are CSA General Use approved. NSF 169 certification is included with all FS-410 switches. With a total length of fewer than 2.35 inches (60 mm) and an all-stainless steel structure that withstands temperatures of up to 500° F, the series FS-410 float switch provides great performance to compact places. The FS-410-S operates between -40° and 368° F (-40° to 187° C), whereas the FS-410-HT operates between -40° and 500° F (-40° to 260° C).

Features:

• Class I Division 1 / 2
• Class II Division 1 / 2
• Class III
• NEMA 4x
• NSF 169 certified
• Extremely 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-410-S-24

• SS Stem and Float, Standard Temp., 0.7 SG, 1/8" NPTM, 24" Wires

FS-410-HT-24

• SS Stem and Float, High Temp., 0.7 SG, 1/8" NPTM, 24" Wires

FS-410-S-48

• SS Stem and Float, Standard Temp., 0.7 SG, 1/8" NPTM, 48" Wires

FS-410-HT-48

• SS Stem and Float, High Temp., 0.7 SG, 1/8" NPTM, 48" Wires

 

Small Package

• From the top of the mounting threads to the bottom of the stem, the FS-410 is less than 2.35" long, and the float is just under 1.2" wide.

Temperature Ranges

• The FS-410-S has an operating temperature range of -40° to 368° F (-40° to 187° C), and the FS-410-HT extends that range to -40° to 500° F (-40° to 260° C).

Certifications

• FS-410-S switches carry CSA Explosion Proof certifications, while FS-410-HT models are certified for General Use. All FS-410 switches are NSF 169 certified.

User Reversible Operation

• FS-410 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

Edit

Series	FS-410
Model	FS-410-S	FS-410-HT
	Switch action for the FS-410 is reversible.
	Standard is NO, user reversible for NC.
Performance
Pressure Rating	300 psi (20.7 bar)
Minimum 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)
Environmental
Operating Temp.	-40º to 368ºF (-40º to 187ºC)	-40º to 500ºF (-40º to 260ºC)
	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	106 - 108 (# of actuations; dependent on load)
Lead Wires	#22 AWG, Teflon 24 - 200 in. (610 - 5080 mm)
Physical
Material
Stem	316L SS
Float	316L SS
Retainer	316L SS
Mounting	Vertical
Certification
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
NSF 169	Yes
Enclosure Rating	NEMA 4X

Resources:

• Datasheet
• Install Guide