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Brand: Lovato Electric
Lovato LVM20A240 LVM20 Level Control Relay
Description
Level relay with adjustable electrode sensitivity
The LVM20A240 is a modular level monitoring relay from Lovato Electric. Function: emptying. It senses the conductive liquid between 3 electrodes and works with SN1, SCM, CGL, PS31 or PS3S electrodes and holders, as the datasheet lists.
Sensitivity is adjustable (2.5-50 adjustable kΩ), the electrode voltage is 7.5 VAC so there is no electrolysis wear on the probes, and the relay supply is 220-240 VAC with a power consumption of 3.5 VA.
Technical specifications
| Parameter | Specification |
|---|---|
| Order code | LVM20A240 |
| Product designation | Level control relay for emptying function. Single voltage. Modular version |
| Product type designation | LVM20 |
| Function | Emptying |
| Supply voltage Type | Single voltage |
| AC (min) | 220 VAC |
| AC (max) | 240 VAC |
| Operating voltage range | 0.85-1.1 Us |
| Rated frequency | 50/60 Hz |
| Power consumption Max | 3.5 VA |
| Power dissipation Max | 1.8 W |
| Number of connectable electrodes | 3 |
| Type of electrode | Electrode and electrode holders: SN1 / SCM / CGL / PS31 / PS3S or similar |
| Electrode voltage | 7.5 VAC |
| Sensitivity | 2.5-50 adjustable kΩ |
| Tripping time | ≤0.6 s |
| Resetting time | ≤0.75 s |
| Number of relays | 1 |
| Relay state | Normally de-energised, energises at tripping |
| Contact arrangement | 1 changeover contact C/O-SPDT |
| Rated operational voltage AC (IEC) | 250 VAC |
| Maximum switching voltage | 400 VAC |
| IEC Conventional free air thermal current Ith ≤ 40°C | 8 A |
| UL/CSA and IEC/EN 60947-5-1 designation | B300 |
| Electrical life (with rated load) | 10⁵ cycles |
| Mechanical life | 30×10⁶ cycles |
| Indication | 1 green LED for power on 1 red LED for relay state |
| Functions and protections provided | 3 detecting electrodes (MIN, MAX and COM), Sensitivity adjustment 2.5…50k Ω, Emptying function |
| Rated insulation voltage Ui | 415 V |
| Rated impulse withstand voltage Uimp | 6 kV |
| Operating frequency withstand voltage | 4 kV |
| Double insulation Supply / relay / electrode | ≤250 VAC |
| Operating temperature (min) | -20 °C |
| Operating temperature (max) | +60 °C |
| Storage temperature (min) | -30 °C |
| Storage temperature (max) | +80 °C |
| Execution | Modular DIN rail mounting |
| N° of modules | 2 |
| Material | Self-extinguishing polyamide |
| Mounting | 35mm DIN rail (IEC/EN 60715) or by screws using extractable clips |
| IEC degree of protection | IP40 on front / IP20 on terminals |
| Dimensions (W x H x D) | 35.8 x 104.7 x 64.9 mm |
| Weight | 215 g |
What to match before ordering
Choose the relay by function (emptying, filling, alarms, priority change) and by supply. Higher-number LVM versions add more electrodes, alarms and time delays.
Use clean-water settings for low sensitivity values and a higher kilo-ohm limit for conductive but contaminated liquids; check the datasheet for the allowed ranges.
Where it is used
Typical use is water storage tanks, sump pumps, boiler feed and cooling circuits. Wire the relay output to a pump contactor, fit electrode holders at the maximum and minimum levels and one common electrode at the bottom of the tank.
For panel design and commissioning, the practical figures to keep at hand are: dimensions (W x H x D) 35.8 x 104.7 x 64.9 mm; weight 215 g; mounting 35mm DIN rail (IEC/EN 60715) or by screws using extractable clips; operating temperature (min) -20 °C; operating temperature (max) +60 °C; storage temperature (min) -30 °C; storage temperature (max) +80 °C; execution Modular DIN rail mounting; N° of modules 2; material Self-extinguishing polyamide; IEC degree of protection IP40 on front / IP20 on terminals. These come straight from the datasheet and are repeated here so that the key installation limits are visible without opening the PDF.
Documents and quotation
A copy of the manufacturer’s datasheet for LVM20A240, exported from the Lovato Electric catalogue in English, is attached to this page; every figure in the table comes from it. Please confirm the supply voltage and system type, the contact arrangement and the DIN-rail space available before you order, and note that the manufacturer may revise datasheet values. Related items are listed under controllers & data acquisition. To request LVM20A240, send the quantity and delivery location with the quotation form; Seven Star LLC is an independent supplier based in Muscat.
Datasheets & Documents
- Datasheet Lovato Electric LVM20A240 datasheet (EN, catalogue export) Download
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About brand
Lovato Electric is the Italian manufacturer of low-voltage electrical components for industrial automation and power distribution: contactors, motor protection circuit breakers, soft starters, variable speed drives, power factor controllers, transfer switch and generator controllers, and energy meters. It was founded in Bergamo in 1922 and has been run by the same family for four generations. Its headquarters is in Gorle, near Bergamo, and it celebrated its centenary in 2022.
Seven Star LLC is an independent supplier in Muscat. We list Lovato motor control, drives and power management products, and supply them to panel builders, contractors and maintenance teams in Oman and the GCC by order code.
Lovato Electric at a glance
| Established | 1922, Bergamo, Italy |
|---|---|
| Headquarters | Gorle (Bergamo), Italy |
| Ownership | Private, family-run for four generations |
| Product families | Contactors and relays, motor protection circuit breakers, motor starters, soft starters, variable speed drives, power factor controllers, ATS and gen-set controllers, multimeters and energy meters, micro PLCs |
Lovato products we list
| Family | Models | Typical use |
|---|---|---|
| Contactors | BF0910A230, BF1810A230, BF2510A230, BF2600A230, BF09T4A230 4-pole, BFS0923A024, 11BG0910A230 mini, 11BGR0901A048 reversing | Switching motors, heaters, lighting and capacitor banks |
| Motor protection and starters | SM1P0650, SM1P1000, SM1P3200, M1P enclosed DOL starter, ME024FD024, ME070RSD024, 31L48 time relay | Short-circuit and overload protection and direct starting of motors |
| Soft starters | ADXL0030600, ADXL0085600, ADXL0135600, ADXT0034, ADXT0084, ADXT0139 | Reducing starting current and mechanical shock on pumps, fans and compressors |
| Variable speed drives | VLA1, VLB1, VLB3 0.75 kW, VLB3 2.2 kW, VLB3 5.5 kW, VLB3 22 kW, VT1 | Speed control of pumps, fans and conveyors to save energy |
| Power management and control | DCRG8, DCRL8 PF controllers, ATL600 ATS controller, RGK600 gen-set controller, DMG200 multimeter, DMED300T2 energy meter, LRD20 micro PLC | Power factor correction, mains/generator changeover and energy monitoring |
Lovato order codes describe the product. On a contactor such as BF0910A230, "BF09" is the frame and rated current (9 A in AC-3), "10" is the built-in auxiliary contact (one normally open), "A" means an AC coil and "230" is the coil voltage. The coil voltage must match the control circuit exactly, so it is the most common detail to check when replacing one. For motors, a soft starter limits the inrush current at start and stop, while a variable speed drive controls the speed continuously and saves energy on pumps and fans that do not need full flow all the time.
Where Lovato products are used
In Oman and the GCC, Lovato components are built into motor control centres, pump and HVAC panels, capacitor banks for power factor correction, generator and ATS panels, and machine control panels for industry, water and buildings.
Ordering Lovato products: what we need
Send the full Lovato order code. For contactors and starters, confirm the coil or control voltage. For drives and soft starters, send the motor power, current and supply voltage. For power factor controllers, send the number of steps and the CT ratio.
Facts checked against Lovato Electric company profile brochures, October 2026.
Browse Lovato Electric products by category: Motor Soft Starters, Automation Accessories, Controllers & Data Acquisition, PLC & I/O Cards, Circuit Breakers, Diesel Generator Spare Parts.
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Frequently Asked Questions
Emptying.
3.
2.5-50 adjustable kΩ.
220-240 VAC.
SN1, SCM, CGL, PS31 or PS3S electrodes and holders, or similar, as listed in the datasheet.

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