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(Fill) level monitoring relay

Fill level monitoring relays are specialized control devices designed to detect and regulate the level of conductive or non-conductive liquids, solids, or granular materials in tanks, silos, or vessels. These relays operate by sensing changes in electrical conductivity, capacitance, or resistance between probes or electrodes, and they typically ...

Fill level monitoring relays are specialized control devices designed to detect and regulate the level of conductive or non-conductive liquids, solids, or granular materials in tanks, silos, or vessels. These relays operate by sensing changes in electrical conductivity, capacitance, or resistance between probes or electrodes, and they typically feature adjustable sensitivity, hysteresis, and time delays. Common technical specifications include supply voltages of 24V AC/DC, 110V AC, or 230V AC, output contacts rated for 5A to 10A at 250V AC, and mounting options for DIN rail or panel installation. They are often available in single-point or multi-point configurations, with some models supporting up to four independent level thresholds. The relays may include LED indicators for status monitoring and are compatible with various probe types, such as rod, cable, or paddle sensors.

These relays are widely used in industrial automation, water and wastewater treatment, chemical processing, food and beverage production, and HVAC systems. Typical applications include pump control for sump or tank filling and emptying, overflow prevention, dry-run protection for pumps, and level monitoring in mixing tanks or storage silos. They are installed in control panels, distribution boards, and process control cabinets, often integrated with PLCs or SCADA systems for remote monitoring and control. In hazardous environments, intrinsically safe versions with Ex certifications are available for use in explosive atmospheres.

Key subcategories include conductive level relays, capacitive level relays, and ultrasonic level relays. Common article codes follow patterns such as LMR-24, LMR-230, or CLR-1P, where the prefix indicates the type (e.g., LMR for level monitoring relay, CLR for conductive level relay) and the suffix denotes voltage or number of points. For example, LMR-24-2P represents a 24V AC/DC two-point level relay. Other codes may include series like 61F (Omron) or Nivelco series, with variations for probe length and material.

We offer real-time pricing, express worldwide shipping, and personalized technical support from specialized engineers. Our team provides detailed documentation, including wiring diagrams and setup guides, to ensure seamless integration. With a multilingual portal, we serve global clients in over 50 countries, ensuring fast delivery and expert assistance for any level monitoring application.

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Manufacturer Code Reference Catalog Number Description Delivery Price

1SVR730850R0300

1SVR730850R0300

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CM-ENS.31S Liquid level monitoring relay 2c/o, sensitivity 0.1-1000kOhm

CM-ENS.31S LIQ LEVEL CONTROL RELAY.

CM-ENS.31S Liquid level monitoring relay 2c/o, sensitivity 0.1-1000kOhm

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CLP2FA1B230

CLP2FA1B230

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Selected parameters SYSTEM System HOUSING Rectangular SENSING FUNCTION Filling or Emptying CONNECTION Plug and socket OUTPUT Relay SPDT MATERIAL Plastic Others HOUSING 35,5 x 81 x 63 mm SENSING FUNCTION 250 oHm to 500 koHm MATERIAL NORYL ADDITIONAL Master - Slave

2-point conductive level controller, cascade connection, Power supply 230 VAC

Conductive 2-point level controller, plug in mount, filing-emptying with cascade function, sensitivity 250 ohm -500 Kohm, 1 x SPDT relay output, supply voltage 230VAC, 35.5x81x60,2mm housing, IP20

 		3 View Availability View Price

CLP2FA1B115

CLP2FA1B115

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Selected parameters SYSTEM System HOUSING Rectangular SENSING FUNCTION Filling or Emptying CONNECTION Plug and socket OUTPUT Relay SPDT MATERIAL Plastic Others HOUSING 35,5 x 81 x 63 mm SENSING FUNCTION 250 oHm to 500 koHm MATERIAL NORYL ADDITIONAL Master - Slave

2-point conductive level controller, cascade connection, Power supply 115 VAC

Conductive 2-point level controller, plug in mount, filing-emptying with cascade function, sensitivity 250 ohm -500 Kohm, 1 x SPDT relay output, supply voltage 24VAC/DC, 35.5x81x60,2mm housing, IP20

 		3 View Availability View Price

CLD2EA1CM24

CLD2EA1CM24

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Selected parameters SYSTEM System HOUSING 2-DIN SENSING FUNCTION Filling or Emptying CONNECTION Terminals OUTPUT Relay DPDT MATERIAL Plastic Others HOUSING 35,5 x 81 x 60 mm SENSING FUNCTION 250 oHm to 500 koHm MATERIAL NORYL

2-point conductive level controller with potentiometer, Power supply 24 VAC/DC

Conductive 2-point level controller, DIN rail mount, filing-emptying function, sensitivity 250 ohm -500 Kohm, 2 x DPDT relay output, supply voltage 24VAC/DC, 35.5x81x60,2mm housing, IP20

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CLD2EA1C230

CLD2EA1C230

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Selected parameters SYSTEM System HOUSING 2-DIN SENSING FUNCTION Filling or Emptying CONNECTION Terminals OUTPUT Relay DPDT MATERIAL Plastic Others HOUSING 35,5 x 81 x 60 mm SENSING FUNCTION 250 oHm to 500 koHm MATERIAL NORYL

2-point conductive level controller with potentiometer, Power supply 230 VAC

Conductive 2-point level controller, DIN rail mount, filing-emptying function, sensitivity 250 ohm -500 Kohm, 2 x DPDT relay output, supply voltage 230VAC, 35.5x81x60,2mm housing, IP20

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CSP2E110

31CSP2E110

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START-UP PRIORITY CHANGE RELAYS, PLUG-IN VERSION, 2 OUTPUTS. AC SUPPLY VOLTAGE, 110VAC

Inter relay. priority 2 pumps 110V AC Undecal socket

Start-up priority change relay, plug-in version, 2 outputs. AC supply voltage, 110VAC

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CSP2E220

31CSP2E220

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START-UP PRIORITY CHANGE RELAYS, PLUG-IN VERSION, 2 OUTPUTS. AC SUPPLY VOLTAGE, 220VAC

Inter relay. priority 2 pumps 220V AC Undecal socket

Start-up priority change relay, plug-in version, 2 outputs. AC supply voltage, 220VAC

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CSP2E230

31CSP2E230

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START-UP PRIORITY CHANGE RELAYS, PLUG-IN VERSION, 2 OUTPUTS. AC SUPPLY VOLTAGE, 230-240VAC

Inter relay. priority 2 pumps 230V AC Undecal socket

Start-up priority change relay, plug-in version, 2 outputs. AC supply voltage, 230-240VAC

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LVFSN1B10

LVFSN1B10

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FLOAT SWITCH FOR DIRTY WATER, NEOPRENE CABLE, 10MT LONG

FLOAT SWITCH FOR DIRTY WATER NEOP. 10M

Float switch for dirty water, Neoprene cable, 10mt long

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LVFSN1B15

LVFSN1B15

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FLOAT SWITCH FOR DIRTY WATER, NEOPRENE CABLE, 15MT LONG

FLOAT SWITCH FOR DIRTY WATER NEOP. 15M

Float switch for dirty water, Neoprene cable, 15mt long

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LVFSN1W10

LVFSN1W10

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FLOAT SWITCH FOR GREY WATER, NEOPRENE CABLE, 10MT LONG

FLOAT SWITCH FOR GRAY WATER NEOP. 10M

Float switch for grey water, Neoprene cable, 10mt long

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LVFSN1W15

LVFSN1W15

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FLOAT SWITCH FOR GREY WATER, NEOPRENE CABLE, 15MT LONG

FLOAT SWITCH FOR GRAY WATER NEOP. 15M

Float switch for grey water, Neoprene cable, 15mt long

 		3 View Availability View Price

LVFSN1B20

LVFSN1B20

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FLOAT SWITCH FOR DIRTY WATER, NEOPRENE CABLE, 20MT LONG

FLOAT SWITCH FOR DIRTY WATER NEOP. 20M

Float switch for dirty water, Neoprene cable, 20mt long

 		3 View Availability View Price

LVFSN1W05

LVFSN1W05

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FLOAT SWITCH FOR GREY WATER, NEOPRENE CABLE, 5MT LONG

FLOAT SWITCH FOR GRAY WATER NEOP. 5M

Float switch for grey water, Neoprene cable, 5mt long

 		2 View Availability View Price

LVFSN1W20

LVFSN1W20

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FLOAT SWITCH FOR GREY WATER, NEOPRENE CABLE, 20MT LONG

FLOAT SWITCH FOR GRAY WATER NEOP. 20M

Float switch for grey water, Neoprene cable, 20mt long

 		3 View Availability View Price

LVFSP1W05

LVFSP1W05

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FLOAT SWITCH FOR GREY WATER, PVC CABLE, 5MT LONG

FLOAT SWITCH FOR GRAY WATER PVC 5M

Float switch for grey water, PVC cable, 5mt long

 		2 View Availability View Price

LVFSP1W10

LVFSP1W10

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FLOAT SWITCH FOR GREY WATER, PVC CABLE, 10MT LONG

FLOAT SWITCH FOR GRAY WATER PVC 10M

Float switch for grey water, PVC cable, 10mt long

 		2 View Availability View Price

LVFSP1W15

LVFSP1W15

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FLOAT SWITCH FOR GREY WATER, PVC CABLE, 15MT LONG

FLOAT SWITCH FOR GRAY WATER PVC 15M

Float switch for grey water, PVC cable, 15mt long

 		2 View Availability View Price

LVFSN1B05

LVFSN1B05

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FLOAT SWITCH FOR DIRTY WATER, NEOPRENE CABLE, 5MT LONG

FLOAT SWITCH FOR DIRTY WATER NEOP. 5M

Float switch for dirty water, Neoprene cable, 5mt long

 		2 View Availability View Price

LVFSP1W03

LVFSP1W03

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FLOAT SWITCH FOR GREY WATER, PVC CABLE, 3MT LONG

FLOAT SWITCH FOR GRAY WATER PVC 3M

Float switch for grey water, PVC cable, 3mt long

 		2 View Availability View Price

159898

61F-GP-NH 100VAC

61FGPNH100AC

Controller conductive level 11-pin High-sensitivity 110VAC

Conductive Level Controller 11 pins High Sensitivity 110VAC

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CLD4MA2D115

CLD4MA2D115

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Selected parameters SYSTEM System HOUSING 2-DIN SENSING FUNCTION Filling and Emptying CONNECTION Terminals OUTPUT Relay DPDT MATERIAL Plastic Others HOUSING 35,5 x 81 x 60 mm SENSING FUNCTION 250 oHm to 500 koHm MATERIAL NORYL ADDITIONAL Alarm HiHi and LoLo

2 to 4 point conductive level controller with potentiometer, Power supply 115 VAC

Conductive 2 to 4-point level controller, DIN rail mount, filing-emptying with multifunctions, sensitivity 250 ohm -500 Kohm, SPST + SPDT relay output, supply voltage 115VAC, 35.5x81x60,2mm housing, IP20

 		3 View Availability View Price

CLD1EA1CM24

CLD1EA1CM24

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Selected parameters SYSTEM System HOUSING 1-DIN SENSING FUNCTION Filling or Emptying CONNECTION Terminals OUTPUT Relay SPST MATERIAL Plastic Others HOUSING 17,5 x 81 x 60 mm SENSING FUNCTION 5 koHm to 150 koHm MATERIAL NORYL ADDITIONAL Time Dependent Level

1-point entry-level controller with potentiometer and time control

Conductive 1-point level controller, DIN rail mount, Filling-emptying function, Sensitivity 5-150 K ohm, 1 SPST relay output, Supply voltage 24V AC/DC, 17,5x81x60,2mm housing, IP20

 		3 View Availability View Price

CLD2EA1C115

CLD2EA1C115

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Selected parameters SYSTEM System HOUSING 2-DIN SENSING FUNCTION Filling or Emptying CONNECTION Terminals OUTPUT Relay DPDT MATERIAL Plastic Others HOUSING 35,5 x 81 x 60 mm SENSING FUNCTION 250 oHm to 500 koHm MATERIAL NORYL

2-point conductive level controller with potentiometer, Power supply 115 VAC

Conductive 2-point level controller, DIN rail mount, filing-emptying function, sensitivity 250 ohm -500 Kohm, 2 x DPDT relay output, supply voltage 115VAC, 35.5x81x60,2mm housing, IP20

 		3 View Availability View Price

CLD4MA2DM24

CLD4MA2DM24

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Selected parameters SYSTEM System HOUSING 2-DIN SENSING FUNCTION Filling and Emptying CONNECTION Terminals OUTPUT Relay DPDT MATERIAL Plastic Others HOUSING 35,5 x 81 x 60 mm SENSING FUNCTION 250 oHm to 500 koHm MATERIAL NORYL ADDITIONAL Alarm HiHi and LoLo

2 to 4 point conductive level controller with potentiometer, Power supply 24 VAC/DC

Conductive 2 to 4-point level controller, DIN rail mount, filing-emptying with multifunctions, sensitivity 250 ohm -500 Kohm, SPST + SPDT relay output, supply voltage 24VAC/DC, 35.5x81x60,2mm housing, IP20

 		3 View Availability View Price

CLP2EA1C230

CLP2EA1C230

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Selected parameters SYSTEM System HOUSING Rectangular SENSING FUNCTION Filling or Emptying CONNECTION Plug and socket OUTPUT Relay DPDT MATERIAL Plastic Others HOUSING 35,5 x 81 x 63 mm SENSING FUNCTION 250 oHm to 500 koHm MATERIAL NORYL

2-point conductive level controller with potentiometer, Power supply 230 VAC

Conductive 2-point level controller, plug in mount, filing-emptying function, sensitivity 250 ohm -500 Kohm, 2 x DPDT relay output, supply voltage 230VAC, 35.5x81x60,2mm housing, IP20

 		3 View Availability View Price

CLP4MA2A115

CLP4MA2A115

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Selected parameters SYSTEM System HOUSING Rectangular SENSING FUNCTION Filling and Emptying CONNECTION Plug and socket OUTPUT Relay DPDT MATERIAL Plastic Others HOUSING 35,5 x 81 x 63 mm SENSING FUNCTION 250 oHm to 500 koHm MATERIAL NORYL ADDITIONAL Alarm HiHi and LoLo

2 to 4 point conductive level controller with potentiometer, Power supply 115 VAC

Conductive 2 to 4-point level controller, plug in mount, filing-emptying with multifunctions, sensitivity 250 ohm -500 Kohm, 2 x SPST relay output, supply voltage 115VAC, 35.5x81x60,2mm housing, IP20

 		3 View Availability View Price

CLP2EB1B230

CLP2EB1B230

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Selected parameters SYSTEM System SENSING FUNCTION Filling or Emptying CONNECTION Terminals OUTPUT Relay SPDT MATERIAL NORYL Others HOUSING 35,5 x 81 x 60 mm SENSING FUNCTION 5 koHm to 150 koHm MATERIAL NORYL

2-point conductive level controller with potentiometer, Power supply 230 VAC

Conductive 2-point level controller, plug in mount, filing-emptying function, sensitivity 5 Kohm -150 Kohm, 1 x SPDT relay output, supply voltage 230VAC, 35.5x81x60,2mm housing, IP20

 		3 View Availability View Price

CLP2EB1B024

CLP2EB1B024

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Selected parameters SYSTEM System SENSING FUNCTION Filling or Emptying CONNECTION Terminals OUTPUT Relay SPDT MATERIAL NORYL Others HOUSING 35,5 x 81 x 60 mm SENSING FUNCTION 5 koHm to 150 koHm MATERIAL NORYL

2-point conductive level controller with potentiometer, Power supply 24 VAC

Conductive 2-point level controller, plug in mount, filing-emptying function, sensitivity 5 Kohm -150 Kohm, 1 x SPDT relay output, supply voltage 24VAC, 35.5x81x60,2mm housing, IP20

 		3 View Availability View Price

1SVR550855R9500

1SVR550855R9500

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CM-ENE MIN Liquid level relay 1n/o, 24VAC

24VACA LIQUID LEVEL MONITOR

CM-ENE MIN Liquid level relay 1n/o, 24VAC

 		3 View Availability View Price

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