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Liquid level switches are used to detect and control the level of liquids in tanks, reservoirs & pipelines to monitor and maintain desired liquid levels. They work on the principle of
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N| Style | Model | Body Material | Conduit Size | Electrical Connections | Float Dia. | Float Material | Height | Max. Pressure | Mounting | Price (ex. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | M4190-HP | €306.57 | |||||||||
| B | M4190 | €365.55 | |||||||||
| C | M4190-BU | €381.63 | |||||||||
| D | MS5010 | €95.21 | |||||||||
| E | MS5917 | €108.52 | |||||||||
| F | MSB5600 | €222.61 | |||||||||
| G | M5000 | €69.14 | |||||||||
| H | M5010 | €66.60 | |||||||||
| I | M5600-PR | €117.70 | |||||||||
| J | M5920 | €157.44 | |||||||||
| K | MS9000 | €43.74 | |||||||||
| L | MS7000 | €28.86 | |||||||||
| M | MS8000 | €28.03 | |||||||||
| N | MS8800 | €77.96 |
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I| Style | Model | Body Material | Conduit Size | Float Dia. | Height | Hp @ 1 Phase - 120v | Hp @ 1 Phase - 230v | Hp @ 1 Phase - 240v | Hp @ 3 Phase - 230v | Price (ex. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 9037HW30 | €772.88 | |||||||||
| B | 9037EW9 | €932.83 | |||||||||
| A | 9037HW35 | €745.94 | |||||||||
| A | 9037HW34 | €829.73 | |||||||||
| C | 9038CW33 | €1,598.30 | |||||||||
| D | 9037HG34 | €239.23 | |||||||||
| E | 9036DG2C | €96.44 | |||||||||
| F | 9036DW31 | €522.56 | |||||||||
| E | 9036GW1 | €830.51 | |||||||||
| D | 9037HG31 | €250.75 | |||||||||
| D | 9037HG32L | €212.09 | |||||||||
| G | 9037HG32Z20 | €227.81 | |||||||||
| D | 9037HG36 | €244.35 | |||||||||
| D | 9037HG36Z20 | €267.70 | |||||||||
| E | 9036DG2S12 | €124.71 | |||||||||
| E | 9036DR31C | €496.49 | |||||||||
| H | 9036FG30 | €36.23 | |||||||||
| E | 9036GG2H | €180.43 | |||||||||
| E | 9036GW1H | €923.03 | |||||||||
| D | 9037HW33 | €784.03 | |||||||||
| D | 9037HG33F3Z20 | €246.80 | |||||||||
| I | 9037HG36F3LZ20 | €177.17 | |||||||||
| D | 9037HG32 | €260.89 | |||||||||
| G | 9037HG36LZ20 | €193.20 | |||||||||
| D | 9037HG38 | €258.67 |
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J| Style | Model | Body Material | Conduit Size | Current Rating | Float Dia. | Height | Hp @ 1 Phase - 120v | Hp @ 1 Phase - 240v | Hp @ 3 Phase - 240v | Price (ex. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 9038DW8 | €1,830.18 | |||||||||
| B | 9038AW1 | €854.06 | |||||||||
| C | 9038CW31 | €1,481.40 | |||||||||
| D | 9038DR8 | €2,269.79 | |||||||||
| B | 9038AW1N5 | €1,112.05 | |||||||||
| B | 9038AR1 | €911.88 | |||||||||
| E | 9038CG36Z20 | €659.94 | |||||||||
| F | 9038CG33F3 | €654.62 | |||||||||
| G | 9038CG32Z20 | €620.48 | |||||||||
| G | 9038CG32N5 | €805.51 | |||||||||
| F | 9038CG31F3 | €614.87 | |||||||||
| H | 9038AG1S6 | €325.48 | |||||||||
| H | 9038AG1N5 | €435.48 | |||||||||
| H | 9038AG1 | €259.70 | |||||||||
| G | 9038CG34Z20 | €596.13 | |||||||||
| G | 9038CG34 | €667.78 | |||||||||
| G | 9038CG33Z20 | €626.14 | |||||||||
| I | 9038DG9 | €785.97 | |||||||||
| I | 9038DG8 | €748.98 | |||||||||
| I | 9038DG7 | €851.26 | |||||||||
| J | 9038CW32 | €1,370.37 | |||||||||
| E | 9038CG36 | €720.22 | |||||||||
| G | 9038CG33 | €635.69 | |||||||||
| G | 9038CG32 | €684.38 | |||||||||
| G | 9038CG31 | €596.70 |
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C| Style | Model | Conduit Size | Float Dia. | Height | Mounting | Operating Temp. Range | Overall Length | Width | Price (ex. VAT) | |
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| A | 9038AG1N4 | €311.86 | ||||||||
| B | 9038CG36N4 | €787.30 | ||||||||
| C | 9038CG36N4LZ20 | €734.74 |
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C| Style | Model | Body Material | Float Dia. | Float Material | Height | Max. Pressure | Operating Temp. Range | Overall Length | Stem Length | Price (ex. VAT) | |
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| A | M5602-7808-6 | €309.03 | RFQ | ||||||||
| B | M5602-7808-1 | €361.87 | |||||||||
| C | M4302-7807-6 | €177.30 | RFQ |
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Y| Style | Model | Body Material | Conduit Size | Contact Form | Electrical Connections | Float Dia. | Float Material | Height | Max. Pressure | Price (ex. VAT) | |
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| A | M5910 | €180.93 | |||||||||
| B | M5900 | €179.50 | |||||||||
| C | M5917 | €85.29 | |||||||||
| D | M5970 | €114.80 | |||||||||
| E | M4300 | €54.37 | |||||||||
| F | M4010 | €61.37 | |||||||||
| G | M9705 | €85.75 | |||||||||
| H | M9700 | €32.17 | |||||||||
| I | M9000 | €25.69 | |||||||||
| J | M7000 | €18.35 | |||||||||
| K | M7700 | €18.34 | |||||||||
| L | M7790 | €26.44 | |||||||||
| M | M7750 | €26.04 | |||||||||
| N | M7740 | €25.47 | |||||||||
| O | M7725 | €24.34 | |||||||||
| P | M8700-C | €17.73 | |||||||||
| Q | M8790 | €16.36 | |||||||||
| R | M8750 | €16.33 | |||||||||
| S | M8800 | €72.32 | |||||||||
| T | MSB8800 | €130.18 | |||||||||
| U | M8710 | €46.05 | |||||||||
| V | M8705 | €40.46 | |||||||||
| W | M8700 | €14.37 | |||||||||
| X | M8000 | €14.56 | |||||||||
| Y | M8000B | €38.83 |
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G| Style | Model | Body Material | Electrical Connections | Float Material | Stem Material | Price (ex. VAT) | |
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| A | M4400-ULL-NO | €70.27 | |||||
| B | M4400-PBT-ULL-NO | €56.26 | |||||
| C | M8020-ULL-NO | €64.48 | |||||
| D | M4500-ULL-NO | €75.21 | |||||
| E | M9000-ULL-NO | €75.32 | |||||
| F | M7000-ULL-NO | €73.29 | |||||
| F | M7000-PBT-ULL-NO | €57.63 | |||||
| G | M8000-ULL-NO | €54.97 |
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BABCD| Style | Model | Body Material | Electrical Connections | Float Material | Stem Material | Price (ex. VAT) | |
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| A | M4400-ULL-NC | €84.12 | |||||
| B | M8020-ULL-NC | €64.27 | |||||
| C | M9000-ULL-NC | €61.86 | |||||
| D | M8000-ULL-NC | €57.61 |
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D| Style | Model | Body Material | Conduit Size | Electrical Connections | Float Dia. | Float Material | Height | Max. Pressure | Mounting | Price (ex. VAT) | |
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| A | M3827-2NO | €130.45 | |||||||||
| A | M3827-3NO | €145.87 | |||||||||
| B | M3326-NO | €27.83 | |||||||||
| C | M3326-NPT-NO | €40.77 | |||||||||
| D | M8000-NO | €18.85 |
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| Model | Item | Price (ex. VAT) | |
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| FLS-VS-500 | CV8BFL | €53.90 |
Madison Single-Point Liquid Level Switches
Square D Liquid 2-Level Switches
Parker Level Switches
A normally open (NO) liquid level switch stays in the open state when the liquid level is below the set threshold and closes the circuit when the liquid level rises to the desired level. A normally closed (NC) switch operates oppositely, being in a closed state when the liquid level is below the threshold and opening the circuit when the liquid level reaches the set level.
Utilising multiple liquid level switches in the same tank provides redundancy and more precise level control. They can be wired in parallel or series, depending on the desired functionality.
Troubleshooting measures include checking electrical connections, verifying power supply, inspecting for damage or debris affecting switch operation and ensuring proper switch calibration.