Finetek FFX Side Mounting Float Switch

FineTek FF Series Side Mounting Float Level Switch

SKU: FFX Categories: , ,
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FineTek FF Series Side Mounting Float Level Switch

The FineTek FF Series is a rugged, industrial-grade side-mount magnetic float level switch that handles high, low, and intermediate level detection across an unusually wide range of fluids — down to a specific gravity of just 0.25 S.G.

How It Works

Like other float-based switches, the FF Series works through buoyancy and magnetism. As fluid level changes, the float moves up or down, and the magnet it carries actuates a sealed switch element to open or close its contacts. No external power is needed for switching to occur.

Key Features

  • SPDT reed switch or SPDT microswitch output
  • Stainless steel or polypropylene wetted materials
  • Operates with fluid density as low as 0.25 S.G.
  • Marine-certified and explosion-proof versions available
  • Side-mount design; special float extension shapes allow top mounting

Applications

  • High, low, and intermediate level switching in tanks and vessels
  • Wide range of liquids with minimum density of 0.25 S.G.
  • Pump control and alarm duty

Industries Served

  • Water and wastewater
  • Chemical
  • Marine and shipbuilding
  • General industry

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Fine-Tek FFX Side Mounting Float Switch
● GENERAL DESCRIPTION
TypeSide-mounted (horizontal) float level switch for tanks or vessels, used as high or low level control
Working PrincipleReed switch type relies on buoyancy and magnetism. The float (containing a magnet) rises and falls with liquid level; the pivot arm’s magnet repels the stationary stem’s switch magnet, opening or closing the electrical circuit. Micro-switch types operate the same buoyancy/pivot mechanism but actuate a mechanical microswitch instead of a reed switch.
Switch Technology OptionsMicro-Switch type or Reed Switch type
MountingCustom-made mounting flanges (JIS, DIN, ANSI) or threaded connection
Float SelectionWide variety of floats available for different liquid specific gravities (S.G.)
Construction VariantsStandard, Mini, Anti-Corrosive, Vertical, Double angle, Square flange (with/without test accessories), Small, and dual-switch variants of Standard/Vertical/Double angle/Square flange
 
● MATERIALS
Wetted Parts (Order code 19-20)MA: SUS304  |  MB: SUS316  |  MC: SUS316L  |  18: PP
Housing MaterialsAluminum Alloy, IP65 (most Standard/Vertical/Double-angle/Square-flange models); SUS304, IP65 (FF15HEQ); SUS316, Ex d / Ex tb explosion-proof rated (FF70/71 and FF73-75 series); PC (polycarbonate), IP65 (FF80EFM, anti-corrosive); FF81E supplied without housing (wetted parts P.P.)
Anti-Corrosive Model Wetted PartsP.P. (FF80EFM, FF81E)
Test Board MaterialSS41 (optional accessory)
Material RestrictionSUS304/SUS316 materials are not available for corrosive applications
 
● ELECTRICAL / PERFORMANCE RATINGS
Reed Switch Contact Capacity1A, 60W, 220Vac/200Vdc (FF29, FF45, FF55 references); 1A, 50W, 220Vac/200Vdc (FF30, SPST); 1A, 30W, 220Vac/200Vdc (FF89 reference)
Micro Switch Contact Capacity5A/250Vac (FF19, FF40, FF50, FF90, FF62 references); 3A/250Vac (FF79 reference / explosion-proof SUS316 series)
Cable Spec (anti-corrosive models)PVC, 3 x 0.75 mm²
FF90CLO Reference RatingsOperation pressure: 15 kg/cm²; Weight (approx.): 1.2 kg; Suitable S.G.: greater than 0.65
ModelOperating Temp.Electrical ContactContact CapacityContact ElementHousing Spec.Applicable S.G.
FF10BHM (UL)-20~100°CSPDT(1C)5A/250VacMicroswitchAluminum Alloy, IP650.25
FF10CEM (UL)-20~100°CSPDT(1C)5A/250VacMicroswitchAluminum Alloy, IP650.65
FF10CEQ (UL)-20~100°CSPDT(1C)5A/250VacMicroswitchAluminum Alloy, IP650.65
FF10CLO (UL)-20~100°CSPDT(1C)5A/250VacMicroswitchAluminum Alloy, IP650.65
FF10DFM (UL)-20~100°CSPDT(1C)5A/250VacMicroswitchAluminum Alloy, IP650.55
FF10DFQ (UL)-20~100°CSPDT(1C)5A/250VacMicroswitchAluminum Alloy, IP650.55
FF15HEQ-20~100°CSPDT(1C)5A/250VacMicroswitchSUS304, IP650.8
FF12CEM-40~100°CSPDT(1C) x25A/250VacMicroswitchAluminum Alloy, IP650.65
FF20BHM-40~200°CSPDT(1C)1A, 60W, 220Vac/200VdcReed SwitchAluminum Alloy, IP650.25
FF20CEM-40~200°CSPDT(1C)1A, 60W, 220Vac/200VdcReed SwitchAluminum Alloy, IP650.65
FF20CEQ-40~200°CSPDT(1C)1A, 60W, 220Vac/200VdcReed SwitchAluminum Alloy, IP650.65
FF20DFM-40~200°CSPDT(1C)1A, 60W, 220Vac/200VdcReed SwitchAluminum Alloy, IP650.55
FF20DFQ-40~200°CSPDT(1C)1A, 60W, 220Vac/200VdcReed SwitchAluminum Alloy, IP650.55
FF20DLO-40~200°CSPDT(1C)1A, 60W, 220Vac/200VdcReed SwitchAluminum Alloy, IP650.55
FF40DFM-20~100°CSPDT(1C)5A/250VacMicroswitchAluminum Alloy, IP650.55
FF45DFM-40~200°CSPDT(1C)1A, 60W, 220Vac/200VdcReed SwitchAluminum Alloy, IP650.55
FF50DFM-20~100°CSPDT(1C)5A/250VacMicroswitchAluminum Alloy, IP650.55
FF55DFM-40~200°CSPDT(1C)1A, 60W, 220Vac/200VdcReed switchAluminum Alloy, IP650.55
FF70/71BHM (Ex-proof)-20~100°CSPDT(1C)3A/250VacMicroswitchSUS316, Ex d / Ex tb0.25
FF70/71CFM (Ex-proof)-20~100°CSPDT(1C)3A/250VacMicroswitchSUS316, Ex d / Ex tb0.65
FF70/71DFM (Ex-proof)-20~100°CSPDT(1C)3A/250VacMicroswitchSUS316, Ex d / Ex tb0.55
FF73GLO (Ex-proof)-20~100°CSPDT(1C)3A/250VacMicroswitchSUS316, Ex d / Ex tb0.7
FF75DFM (Ex-proof)-20~100°CSPDT(1C)3A/250VacMicroswitchSUS316, Ex d / Ex tb0.55
FF90CLO (UL)-20~100°CSPDT(1C)5A/250VacMicroswitchAluminum Alloy, IP650.65
FF30A3Q-20~100°CSPST(1A)1A, 50W, 220Vac/200VdcReed SwitchSUS304, IP650.65
FF62DFM-40~350°CSPDT(1C)5A/250VacMicroswitchAluminum Alloy, IP650.55
FF80EFM (anti-corrosive)-20~80°CSPDT(1C)1A, 30W, 220Vac/200VdcReed switchPC, IP650.60
FF81E (anti-corrosive, no housing)-20~80°CSPDT(1C)1A, 30W, 220Vac/200VdcReed switchNot specified in source (no housing)0.60
Note: models listed with “(UL)” and the FF70/71/73/75-series “(Ex-proof)” models are additionally approved by class societies DNV-GL, LR, BV, ABS as noted on the source specification pages.
 
● DIMENSIONS
Float Sizesφ41 x 150L, φ50 x 150L, φ75 x 120L (per nozzle-length chart below); order-code float types also include φ32.5×68, φ75×120, φ41×150, φ50×150, φ44×50(PP), φ41×100, φ41×125
Recommended Maximum Nozzle Length (mm)See table below (pipe inner diameter A vs. flange-connection max. B and screw-connection max. C, per float diameter). ⊕ = float diameter larger than nozzle diameter, sensor cannot be inserted. ◎ = nozzle length not limited.
Pipe Inner Dia. (A)Float φ41x150LFloat φ50x150LFloat φ75x120L
Flange (B) max.Screw (C) max.Flange (B) max.Screw (C) max.Flange (B) max.Screw (C) max.
4510291⊕⊕⊕⊕
501039210291⊕⊕
551059410392⊕⊕
601089710695⊕⊕
6511210110796⊕⊕
7012211111099⊕⊕
7513512411410310695
8014813712411310796
8516115013712610998
90170159150139112101
95186175163152115104
100199188169158119108
105212201188177125114
110225214201190136125
115◎◎214203149138
120◎◎◎◎162151
125◎◎◎◎174163
130◎◎◎◎◎◎
Probe/Cable Length Options0000: Standard  |  0250~0800: 250~800 mm  |  0270~1000: 270~1000 mm  |  0155~0600: 155~600 mm
Vertical/Double-Angle Models (FF40/45/50/55/71/74/75 etc.)X, Y, Z legs each ≥ 40 mm; sum of legs constraint X+Y+Z ≤ 500 mm (dual-angle types) or X+Y ≤ 1000 mm (single vertical types) per model drawing — exact values not tabulated in source beyond these constraints
 

Download FineTek FF Series Side Mounting Float Level Switch information here

Datasheet: Finetek_FF-Side-Mounting-Float-Switch
Manual:

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