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FPS-L Series (HVAC/R) Liquid Level Sensor

Description

FPS-L Series (HVAC/R) Liquid Level Sensor elbow model flood prevention switches are simple to install, easy to service and extremely reliable. As water level in the auxiliary or main drain pipe rises (due to a clogged air conditioning condensate drain) the switch shuts off the system, thus preventing water from overflowing, causing damage to floors, walls and ceilings. Ideal in commercial or residential installation to primary or auxiliary condensate drain plugs. This model includes a custom elbow pipe fitting to accommodate easy installation to primary or auxiliary drain plugs. UL508, NEC and IMC compliant.

Applications

Air conditioners, commercial and residential HVAC/R, condensate drain pans, heating systems, ventilation systems, refrigeration equipment

Series Data Sheet (PDF)
 
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Stock Check

Item No.DatasheetDistributorRegionQuantityCartRFQInventory Date
FPS-L MASTER/ONLINEAmericas0 RFQ2024-12-13
FPS-L Heilind ElectronicsAmericas0 RFQ2024-12-12
FPS-L Mouser ElectronicsAmericas0 RFQ2024-12-13
FPS-L Arrow ElectronicsAmericas0 RFQ2024-12-13
FPS-L Standex FactoryAmericas0 RFQ2024-12-13

Parametric Search

MaterialSwitches & Contact FormMounting TypeOverall Length (mm)Outer Dia.Inner Dia.
Part Number MaterialSwitches & Contact FormMountingOverall Length (mm)Outer Dia.Inner Dia.
FPS-LPP1ATop, Side2.500" (63.5mm)--

Associated Parts

FPS-B Series (HVAC/R) Liquid Level Sensor bracket model flood prevention switches are simple to install, easy to service and extremely reliable. As water level in the auxiliary or main drain pipe rises (due to a clogged air conditioning condensate drain) the switch shuts off the system, thus preventing water from overflowing, causing damage to floors, walls and ceilings. Ideal in commercial or residential installation to primary or auxiliary condensate drain pans. This model includes a custom bracket that clips onto primary or auxiliary drain pans. UL508, NEC and IMC compliant.

FPS-T Series (HVAC/R) Liquid Level Sensor tee model flood prevention switches are simple to install, easy to service and extremely reliable. As water level in the auxiliary or main drain pipe rises (due to a clogged air conditioning condensate drain) the switch shuts off the system, thus preventing water from overflowing, causing damage to floors, walls and ceilings. Ideal in commercial or residential installation to primary condensate drains vertical and horizontal, including a close coupled plugged or vertical drain option. Our most versatile plug-n-play model includes two “Do-It-All” custom tee pipe fittings for easy and flexible installation options. UL508, NEC and IMC compliant.

Compact single level vertical mount LS01 Series Liquid Level Sensor used in level control, detection and monitoring. High power switch option, other cables and connectors.

Compact stainless steel single level vertical mount LS02 (S) Series Liquid Level Sensor used in level control, detection and monitoring. High power switch option, other cables and connectors. High temperature resistance up to 120°C. IP68 only up to screw in thread.

Compact single level vertical mount LS02 Series Liquid Level Sensor used in level control, detection and monitoring. High power switch option, other cables and connectors. IP68 only up to screw in thread.

Compact single level horizontal mount LS03 Series Liquid Level Sensor used in level control, detection and monitoring. High power switch option, other cables and connectors. High temperature resistance up to 150°C.

Vertical top mount R12072 Series Liquid Level Sensor snap-in design is ideal in blow or injection molded bottles. Adjustable sensing point up to 18 inches from top of bottle. Standard termination-0.25 inch open spade.

Vertical bottom mount R12347 Series Liquid Level Sensor design is ideal in blow or injection molded bottles. Uses separate seal grommet and contains and internal snubber resistor. Mates with Ford P/N E57B14A464AA.

Vertical bottom mount R12349 Series Liquid Level Sensor design is ideal in blow or injection molded bottles. Uses separate seal grommet and contains and internal snubber resistor. Mates with Ford P/N E57B14A464AA.

Vertical bottom mount R12372 Series Liquid Level Sensor design is ideal in blow or injection molded bottles. Uses separate seal grommet and contains and internal snubber resistor. Indication delay feature.

Vertical bottom mount R12421 Series Liquid Level Sensor design is ideal in blow or injection molded bottles. Uses separate seal grommet and contains and internal snubber resistor. Indication delay feature.

Applications

Media

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Reed Switches work well with smart home automation systems because they draw no power compared to other magnetic sensing elements. They can be married to a wireless or Bluetooth technology and placed in remote battery powered door sensors or window sensors, or anything where you’re looking for movement or proximity. They’re a very cost-effective and robust component suitable for the home environment, requiring fewer connections resulting in longer battery life.

In today’s homes and also commercial properties, there’s an increased necessity for control to improve efficiency and productivity. And with that control, you have different products that measure temperature, water levels, security, and locks, so within those products reed switches play a major role in making them “smart”.

Standex Electronics is a global leader in the design, development, and manufacturing of standard and custom Reed Switches.

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Product Training Module – Liquid Level Sensing Technology

Welcome to Standex Electronics' presentation on the Liquid level sensing technology. We will present and define the liquid level sensing technology. We will also present the key functions and define all critical terms. Along with this we will investigate the various package configurations and review the various expanding applications.

Product Training Module – Automotive Liquid Level Sensing

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The Reed Switch is the core element in Reed Sensors, Level Sensors and Reed Relays. A magnetic contact switch consisting of two ferromagnetic blades are hermetically sealed inside a glass tube. The glass tube is filled with a high purity inert gas. Under non operating conditions the reed switch contacts do not touch. Standex Electronics is leading the way in reed switch manufacturing...

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3D Magnetic Mapping for Sensor Applications

Standex Electronics's technical expert describes their 3D Magnetic Mapping capabilities used in reed sensor applications

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A Reed Switch Sensor on a surface mount PCB assembly shown in 3-D with actuating magnet. When viewed in three dimensions, the magnetic flux lines emanating from the magnet look like a beer barrel keg; and also in three dimensions, with the magnet parallel to the reed switch, the center magnetic lobe array looks like a donut and the two outside lobes look more like a boxer's punching bag -- the kind hung from the ceiling. Essentially the fields from the magnet and the fields for the lobes are symmetrical when viewed in three dimensions. As seen in two dimensions, when the magnet is brought into one of the lobes the reed switch contacts will close. Now, as seen in three dimensions the magnet can be brought into the lobes in any spherical direction for contact closure to occur. Here the magnet is moved into the sphere of influence of the lobes of the reed switch showing the closure and opening when the magnet enters the lobes and passes through them, The change in lighting signifies the closing and opening of the reed switch contacts.

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