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 | Features | Mounting Type | Operating Temperature | Output Type | Sensitivity | Termination Style | Type | Voltage | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Omron
|
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SPDT (1 Form C) | 3A @ 250VAC | Alarm Leak - Audible and Contact and LED Indication, Adjustable Sensitivity | Chassis Mount | -10°C ~ 50°C | Relay | 0 ~ 50kOhm | Screw Terminal | Leak Detection | 120/240VAC | |
|
Curtis Industries
|
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Price on request
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SPDT (1 Form C) | 10A @ 120VAC | NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 50kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 120VAC | |
|
Curtis Industries
|
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Price on request
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DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 100kOhm | Screw Terminal | High/Low Level | 120VAC | |
|
Curtis Industries
|
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Price on request
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DPDT (2 Form C) | 10A @ 120VAC | - | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 50kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 240VAC | |
|
Curtis Industries
|
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Price on request
Price and Stock
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SPDT (1 Form C) | 10A @ 120VAC | - | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 50kOhm | 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 | - | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 25kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 240VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
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SPDT (1 Form C) | 10A @ 120VAC | - | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 50kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 240VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
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SPDT (1 Form C) | 10A @ 120VAC | - | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 50kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 240VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
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SPDT (1 Form C) | 10A @ 120VAC | - | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 100kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 240VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
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SPDT (1 Form C) | 10A @ 120VAC | NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 25kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 120VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
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DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, Auxiliary Contactor, NEMA 3 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, Auxiliary Contactor, NEMA 3 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, Auxiliary Contactor, NEMA 3 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity | 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, Auxiliary Contactor, NEMA 3 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, NEMA 3 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, Auxiliary Contactor | 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, NEMA 3 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, NEMA 3 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, Auxiliary Contactor | 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, Auxiliary Contactor | 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 |
DPDT (2 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 |
DPDT (2 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 |
DPDT (2 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 |
DPDT (2 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 |
DPDT (2 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, NEMA 3 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, Auxiliary Contactor | 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, Auxiliary Contactor | 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, Auxiliary Contactor | 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, NEMA 3 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 |
DPDT (2 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, NEMA 3 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity | 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, Auxiliary Contactor, NEMA 3 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity | 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity | 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity, Auxiliary Contactor, NEMA 3 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 |
DPDT (2 Form C) | 10A @ 120VAC | Adjustable Sensitivity | 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
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SPST-NO (1 Form A), SPDT (1 Form C) | 10A @ 120VAC | Lockout Feature | Chassis Mount | 0°C ~ 60°C | Relay (2) | 0 ~ 100kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 120VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | NEMA 4 Rated Enclosure Included | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 100kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 120VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 25kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 120VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 50kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 120VAC | |
|
Curtis Industries
|
Send RFQ |
Price on request
Price and Stock
on Request |
SPDT (1 Form C) | 10A @ 120VAC | - | Chassis Mount | 0°C ~ 60°C | Relay | 0 ~ 100kOhm | Quick Connect - 0.250" (6.3mm) | High/Low Level | 120VAC |
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