PC Series - Liquid level control

Series: PC
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The PC-xxx-LLC-CZ & PC-xxx-LLC-GM are liquid level control relays used to control conductive liquid pumping operations in a pump-up or pump-down application. The units come in two different voltage ranges. The units have an adjustable sensitivity knob (4.7k to 100k ohms) that is set according to the resistance level at which you want the probes (sold separately) to sense the conductive liquid. The units have a built-in debounce time delay that prevents the relay from energizing if the probe resistance momentarily goes above or below the sensitivity setpoint (due to liquid splashing in the tank). The units operate their internal relay based on inputs from a high and low probe and a common reference (when a conductive tank is used) or common probe (when a non-conductive tank is used).

Product Literature

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Call +1 800-832-3873 or email us at relays@littelfuse.com 

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)		Termination TypeMounting MethodDimensionsWeight (lbs/g)Debounce Time Delay (s)HumidityInput AC Line Frequency (Hz)Maximum Input PowerOutput Load Rating (VA)Sense VoltageSensitivity (Ohms)StockSamplesCompare
PC-100-LLC-CZ95 - 120 VacTorque: 12 in-lbs.; 12 - 22 AWG solid or strandedDIN rail or surface mount (plug into OT08-PC socket)1.75 H x 2.38 W x 4.13 D in. (44.5 x 60.3 x 104.8 mm)0 Kg210 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)5Pilot Duty: 480 VA @ 240 Vac; General Purpose: 10 A @ 240 Vac5 Vdc pulsed (probe)4.7 - 100 adjustableCheckOrder
PC-100-LLC-GM95 - 120 VacTorque: 12 in-lbs.; 12 - 22 AWG solid or strandedDIN rail or surface mount (plug into OT08-PC socket)1.75 H x 2.38 W x 4.13 D in. (44.5 x 60.3 x 104.8 mm)0 Kg210 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)5Pilot Duty: 480 VA @ 240 Vac; General Purpose: 10 A @ 240 Vac5 Vdc pulsed (probe)4.7 - 100 adjustableCheckOrder
PC-200-LLC-CZ190 - 240 VacTorque: 12 in-lbs.; 12 - 22 AWG solid or strandedDIN rail or surface mount (plug into OT08-PC socket)1.75 H x 2.38 W x 4.13 D in. (44.5 x 60.3 x 104.8 mm)0 Kg210 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)5Pilot Duty: 480 VA @ 240 Vac; General Purpose: 10 A @ 240 Vac5 Vdc pulsed (probe)4.7 - 100 adjustableCheckOrder
PC-200-LLC-GM190 - 240 VacTorque: 12 in-lbs.; 12 - 22 AWG solid or strandedDIN rail or surface mount (plug into OT08-PC socket)1.75 H x 2.38 W x 4.13 D in. (44.5 x 60.3 x 104.8 mm)0 Kg210 - 95% non-condensing per IEC 68-2-350 / 60 (50 will increase all delay timers by 20%)5Pilot Duty: 480 VA @ 240 Vac; General Purpose: 10 A @ 240 Vac5 Vdc pulsed (probe)4.7 - 100 adjustableCheckOrder
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