What are Controllers - Liquid, Level ?
Controllers - Liquid, Level are devices designed to regulate and monitor liquid levels in industrial settings. They are commonly used in applications such as leak detection, constant level maintenance, and high/low level monitoring. Important specifications for selection include Contact Rating @ Voltage, which ensures compatibility with electrical systems, Operating Temperature, which affects performance in different environments, and Sensitivity, which determines the controller's responsiveness to liquid level changes. Procurement teams should validate lifecycle status and consider alternate-source options to mitigate sourcing risks.
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| Part & Mfr | Contact Form | Contact Rating @ Voltage | Distance | Features | Mounting Type | Operating Temperature | Output Type | Sensitivity | Termination Style | Type | Voltage | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Omron
|
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SPDT (2 Form C) | 5A @ 220VAC | 50m | Alarm High/Low - Contact | Chassis Mount | -10°C ~ 55°C | Relay (3) | 15kOhm ~ 70kOhm | Screw Terminal | High/Low Level | 100/200VAC | |
|
Omron
|
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Price on request
Price and Stock
on Request |
SPDT (2 Form C) | 5A @ 220VAC | 50m | Alarm High/Low - Contact | Chassis Mount | -10°C ~ 55°C | Relay (3) | 15kOhm ~ 70kOhm | Screw Terminal | High/Low Level | 110/220VAC | |
|
Omron
|
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Price on request
Price and Stock
on Request |
SPDT (2 Form C), SPDT (3 Form C) | 3A @ 200VAC | 1km | Idling Prevention, Level Indication | DIN Rail | -10°C ~ 55°C | Relay (6) | 0 ~ 4kOhm | Screw Terminal | High/Low Level | 110/220VAC | |
|
Curtis Industries
|
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Price and Stock
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SPST-NO (1 Form A), SPDT (1 Form C) | 10A @ 120VAC | - | Lockout Feature, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay (2) | 0 ~ 100kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 24VAC | |
|
Curtis Industries
|
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Price on request
Price and Stock
on Request |
SPST-NO (1 Form A), SPDT (1 Form C) | 10A @ 120VAC | - | Lockout Feature, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay (2) | 0 ~ 100kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 240VAC | |
|
Curtis Industries
|
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Price on request
Price and Stock
on Request |
SPST-NO (1 Form A), SPDT (1 Form C) | 10A @ 120VAC | - | Lockout Feature, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay (2) | 0 ~ 100kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 120VAC | |
|
Curtis Industries
|
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Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, Delay Timer, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 1kOhm ~ 100kOhm | Screw Terminal | High/Low Level | 240VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, Delay Timer, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 1kOhm ~ 100kOhm | Screw Terminal | High/Low Level | 120VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, Delay Timer, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 1kOhm ~ 100kOhm | Screw Terminal | High/Low Level | 24VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 3MOhm | Screw Terminal | High/Low Level | 120VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 3MOhm | Screw Terminal | High/Low Level | 240VAC | |
|
Omron
|
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Price on request
Price and Stock
on Request |
SPDT (2 Form C) | 1A @ 220VAC | 5m | - | Socketable | -10°C ~ 55°C | Relay | 0 ~ 1MOhm | Plug In, 8 Pin (Octal) | High/Low Level | 100VAC | |
|
Omron
|
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Price on request
Price and Stock
on Request |
SPDT (2 Form C) | 1A @ 220VAC | 5m | - | Socketable | -10°C ~ 55°C | Relay | 0 ~ 1MOhm | Plug In, 8 Pin (Octal) | High/Low Level | 200VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, Auxiliary Contactor, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 100kOhm | Screw Terminal | High/Low Level | 240VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, Auxiliary Contactor, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 100kOhm | Screw Terminal | High/Low Level | 24VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, Auxiliary Contactor, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 100kOhm | Screw Terminal | High/Low Level | 120VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, Auxiliary Contactor, Delay Timer, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 1kOhm ~ 100kOhm | Screw Terminal | High/Low Level | 24VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, Auxiliary Contactor, Delay Timer, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 1kOhm ~ 100kOhm | Screw Terminal | High/Low Level | 240VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, Auxiliary Contactor, Delay Timer, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 1kOhm ~ 100kOhm | Screw Terminal | High/Low Level | 120VAC | |
|
Omron
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (2 Form C) | 3A @ 200VAC | 1km | Alarm High/Low - Contact, Level Indication | DIN Rail | -10°C ~ 55°C | Relay (2) | 0 ~ 4kOhm | Screw Terminal | High/Low Level | 110/220VAC | |
|
Omron
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (2 Form C), SPDT (3 Form C) | 3A @ 200VAC | 1km | Idling Prevention, Level Indication | DIN Rail | -10°C ~ 55°C | Relay (6) | 0 ~ 1.8kOhm | Screw Terminal | High/Low Level | 110/220VAC | |
|
Omron
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (2 Form C), SPDT (3 Form C) | 3A @ 200VAC | 50m | Idling Prevention, Level Indication | DIN Rail | -10°C ~ 55°C | Relay (6) | 10kOhm ~ 40kOhm | Screw Terminal | High/Low Level | 110/220VAC | |
|
Omron
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (2 Form C), SPDT (3 Form C) | 3A @ 200VAC | 2km | Idling Prevention, Level Indication | DIN Rail | -10°C ~ 55°C | Relay (6) | 0 ~ 1.8kOhm | Screw Terminal | High/Low Level | 110/220VAC | |
|
Omron
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (2 Form C), SPDT (3 Form C) | 3A @ 200VAC | 4km | Idling Prevention, Level Indication | DIN Rail | -10°C ~ 55°C | Relay (6) | 0 ~ 0.7kOhm | Screw Terminal | High/Low Level | 110/220VAC | |
|
Omron
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (2 Form C), SPDT (3 Form C) | 3A @ 200VAC | 800m | Idling Prevention, Level Indication, Two Wire/Three Probe | DIN Rail | -10°C ~ 55°C | Relay (6) | 0 ~ 1.1kOhm | Screw Terminal | High/Low Level | 110/220VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, Auxiliary Contactor, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 3MOhm | Screw Terminal | High/Low Level | 240VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Adjustable Sensitivity, Auxiliary Contactor, NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 3MOhm | Screw Terminal | High/Low Level | 120VAC | |
|
Omron
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (2 Form C), SPDT (3 Form C) | 5A @ 220VAC | 50m | Idling Prevention, Level Indication | Chassis Mount | -10°C ~ 55°C | Relay (6) | 15kOhm ~ 70kOhm | Screw Terminal | High/Low Level | 110/120VAC | |
|
Omron
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (2 Form C) | 3A @ 200VAC | 1km | Alarm High/Low - Contact, Level Indication | DIN Rail | -10°C ~ 55°C | Relay (2) | 0 ~ 1.8kOhm | Screw Terminal | High/Low Level | 110/220VAC | |
|
Omron
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (2 Form C) | 3A @ 200VAC | 50m | Alarm High/Low - Contact, Level Indication | DIN Rail | -10°C ~ 55°C | Relay (2) | 10kOhm ~ 40kOhm | Screw Terminal | High/Low Level | 110/220VAC | |
|
Omron
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (2 Form C) | 3A @ 200VAC | 2km | Alarm High/Low - Contact, Level Indication | DIN Rail | -10°C ~ 55°C | Relay (2) | 0 ~ 1.8kOhm | Screw Terminal | High/Low Level | 110/220VAC | |
|
Omron
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (2 Form C) | 3A @ 200VAC | 4km | Alarm High/Low - Contact, Level Indication | DIN Rail | -10°C ~ 55°C | Relay (2) | 0 ~ 0.7kOhm | Screw Terminal | High/Low Level | 110/220VAC | |
|
Schneider Electric
|
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Price on request
Price and Stock
on Request |
- | - | - | Adjustable Sensitivity | Socketable | -30°C ~ 70°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | High/Low Level | 240VAC | |
|
Schneider Electric
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 8A | 1km | Adjustable Sensitivity | DIN Rail | -40°C ~ 70°C | Relay | 0.25 ~ 1000kOhm | Screw Terminal | High/Low Level | 24 ~ 240VAC/DC | |
|
Schneider Electric
|
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Price on request
Price and Stock
on Request |
- | 8A | 1km | Adjustable Sensitivity | DIN Rail | -40°C ~ 70°C | Relay | 5 ~ 100kOhm | Screw Terminal | High/Low Level | 380 ~ 415VAC/DC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | - | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 100 ~ 125VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | Level Indication | Socketable | 0°C ~ 40°C | Relay | - | Plug In, 8 Pin (Octal) | Constant Level | 100 ~ 125VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | Adjustable Sensitivity | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 200 ~ 240VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | Level Indication | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 20 ~ 29VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | Adjustable Sensitivity | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 20 ~ 29VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | - | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 100 ~ 125VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | Adjustable Sensitivity | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 100 ~ 125VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | Level Indication | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 200 ~ 240VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | - | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 11 ~ 16VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | - | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 100 ~ 125VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | Adjustable Sensitivity | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 200 ~ 240VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | Adjustable Sensitivity | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 20 ~ 29VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | Adjustable Sensitivity | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 100 ~ 125VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 10A @ 120VAC | - | Adjustable Sensitivity | Socketable | 0°C ~ 40°C | Relay | 5 ~ 100kOhm | Plug In, 8 Pin (Octal) | Constant Level | 11 ~ 16VAC | |
R-K Electronics, Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | 5A @ 250VAC | 304.8m | - | DIN Rail | 0°C ~ 55°C | Relay | 100kOhm | Screw Terminal | Constant Level | 24VAC/DC |
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