Lovato 31LV1E400 LV1E 380-415VAC Level Control Relay
The Lovato 31LV1E400 is an LV1E level monitoring relay designed for
automatic control of conductive liquid levels in industrial and commercial applications.
Featuring an emptying function, automatic reset operation, three electrode connection
capability and a 380-415VAC supply voltage, this plug-in relay provides reliable liquid
level management for tanks, reservoirs, wells and pumping systems.
The Lovato 31LV1E400 monitors liquid conductivity using external probes and switches its
relay output when the programmed level condition is reached. Its compact 8-pin plug-in
housing with S8 socket compatibility allows simple installation in automation panels and
industrial control systems.
Key Features
LV1E conductive liquid level monitoring relay
Automatic reset operation
Emptying control function
380-415VAC auxiliary supply voltage
Supports connection of up to three level electrodes
Fixed sensitivity of 7-8kΩ
One changeover relay output (SPDT)
8-pin plug-in housing with S8 socket compatibility
35mm DIN rail mounting capability
Red LED relay status indication
Applications
Water tank level control systems
Pump emptying applications
Industrial liquid monitoring
Reservoir and sump control
Automation and electrical control panels
Process water management systems
Why Choose the Lovato 31LV1E400?
The Lovato 31LV1E400 provides dependable liquid level monitoring with automatic reset
functionality and simple plug-in installation. Its robust relay output, compact housing
and compatibility with standard electrode systems make it an effective solution for
industrial pump and fluid control applications.
Technical Specifications
Voltage
415 V
Brand
Lovato Electric
Manufacturer Part Number
31LV1E400
Product Type
Level monitoring relay
Product Series
LV1E
Liquid Type
Conductive liquids
Function
Emptying
Supply Voltage
380-415VAC
Rated Frequency
50/60Hz
Connectable Electrodes
3
Electrode Voltage
9VAC
Sensitivity
7-8kΩ fixed
Relay Outputs
1
Contact Configuration
1 changeover contact C/O-SPDT
Rated Operational Voltage
220VAC
Maximum Switching Voltage
380VAC
Thermal Current Ith
5A
Installation
8-pin plug-in housing (socket S8)
Mounting
35mm DIN rail or plug-in socket
Protection Rating
IP30
Operating Temperature
-20°C to +60°C
Storage Temperature
-30°C to +80°C
Dimensions
38 x 76 x 70mm
Weight
264g
EAN
8013975099360
HS Code
85389091
Frequently Asked Questions
What is the Lovato 31LV1E400 used for?
The Lovato 31LV1E400 is used for monitoring conductive liquid levels and controlling
emptying operations in tanks, reservoirs and pumping systems.
What voltage does the Lovato 31LV1E400 operate on?
The relay operates with a 380-415VAC supply voltage.
How many electrodes can be connected to the 31LV1E400?
The relay supports connection of up to three level electrodes.
What type of mounting does this relay use?
The Lovato 31LV1E400 uses an 8-pin plug-in housing with S8 socket compatibility and can
be mounted on a 35mm DIN rail.
Voltage
415 V
Brand
Lovato Electric
Manufacturer Part Number
31LV1E400
Product Type
Level monitoring relay
Product Series
LV1E
Liquid Type
Conductive liquids
Function
Emptying
Supply Voltage
380-415VAC
Rated Frequency
50/60Hz
Connectable Electrodes
3
Electrode Voltage
9VAC
Sensitivity
7-8kΩ fixed
Relay Outputs
1
Contact Configuration
1 changeover contact C/O-SPDT
Rated Operational Voltage
220VAC
Maximum Switching Voltage
380VAC
Thermal Current Ith
5A
Installation
8-pin plug-in housing (socket S8)
Mounting
35mm DIN rail or plug-in socket
Protection Rating
IP30
Operating Temperature
-20°C to +60°C
Storage Temperature
-30°C to +80°C
Dimensions
38 x 76 x 70mm
Weight
264g
EAN
8013975099360
HS Code
85389091
No documents available for this product.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...