LLC8 Series – Low-Level Cutoff Liquid Level Control Series - Littelfuse LLC8 Low-Level Liquid Level Controls Provide Superior Protection

Series: LLC8 Series – Low-Level Cutoff Liquid Level Control
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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The LLC8 series is a low cost, single-probe, conductive liquid level control designed for low liquid level cutoff protection. It offers a factory-fixed time delay of 1–60 s and is available in input voltages of 24, 120, or 230 V ac. An LED indicator illuminates whenever the LLC8’s isolated, 10 A, SPDT output relay is energized. The sense resistance is fixed from 5 k–250 kΩ. The LLC8 series is available with a manual/automatic reset or a special manual reset with a power outage feature that auto-resets the unit when power is restored, and the water level is acceptable. 24 and 120 V ac units are UL recognized as limit switches under UL 353 (230 V ac units are UL 508) and CSA certified under Standard 14. The printed circuit board is conformally coated to resist moisture and corrosion.

See datasheet for operation and reset (automatic reset, manual reset, power outage manual reset) details.

Features

  • Isolated 12 V ac voltage on probe
  • Open PCB design
  • LED indication
  • Power outage protection (see ordering table for models)
  • Conformally coated PCB
  • 24 V ac and 120 V ac models meet UL353

Product Literature

For Technical Questions

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)		Output
Form		Time Delay RangeTermination TypeMounting MethodDimensionsWeight (lbs/g)Control TypeHumidityInput AC Line Frequency (Hz)Input Tolerance (%)Output Load Rating (VA)Output TypeRepeat Accuracy (%)Reset Time (ms)StockSamplesCompare
LLC825F5M24 VacIsolated SPDT5 s fixedElectrical: 0.25 in. (6.35 mm) male quick connect terminals; Reset switch and probes: 0.187 x 0.03 in (4.75 x 0.76 mm) male quick connect terminals0.50 in. (12.7mm) nylon standoffs with three #6 (M3.5 x 0.6) screws2.5 H x 2.19 W x 1.88 D in. (63.5 x 55.6 x 47.8 mm)0 KgResistance sensing for conductive liquids with time delay95% non-condensing50 / 60-0.3510 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/2 hp @ 250 VacElectromechanical relay±10%Manual / automatic resetCheckOrder
LLC842F103M120 VacIsolated SPDT2 s fixedElectrical: 0.25 in. (6.35 mm) male quick connect terminals; Reset switch and probes: 0.187 x 0.03 in (4.75 x 0.76 mm) male quick connect terminals0.50 in. (12.7mm) nylon standoffs with three #6 (M3.5 x 0.6) screws2.5 H x 2.19 W x 1.88 D in. (63.5 x 55.6 x 47.8 mm)0 KgResistance sensing for conductive liquids with time delay95% non-condensing50 / 60-0.310 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/2 hp @ 250 VacElectromechanical relay±10%Manual / automatic resetCheckOrder
LLC843F10M120 VacIsolated SPDT3 s fixedElectrical: 0.25 in. (6.35 mm) male quick connect terminals; Reset switch and probes: 0.187 x 0.03 in (4.75 x 0.76 mm) male quick connect terminals0.50 in. (12.7mm) nylon standoffs with three #6 (M3.5 x 0.6) screws2.5 H x 2.19 W x 1.88 D in. (63.5 x 55.6 x 47.8 mm)0 KgResistance sensing for conductive liquids with time delay95% non-condensing50 / 60-0.310 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/2 hp @ 250 VacElectromechanical relay±10%Manual / automatic resetCheckOrder
LLC843F10P120 VacIsolated SPDT3 s fixedElectrical: 0.25 in. (6.35 mm) male quick connect terminals; Reset switch and probes: 0.187 x 0.03 in (4.75 x 0.76 mm) male quick connect terminals0.50 in. (12.7mm) nylon standoffs with three #6 (M3.5 x 0.6) screws2.5 H x 2.19 W x 1.88 D in. (63.5 x 55.6 x 47.8 mm)0 KgResistance sensing for conductive liquids with time delay95% non-condensing50 / 60-0.310 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/2 hp @ 250 VacElectromechanical relay±10%Power outage manual reset delay ≤1CheckOrder
LLC843F26M120 VacIsolated SPDT3 s fixedElectrical: 0.25 in. (6.35 mm) male quick connect terminals; Reset switch and probes: 0.187 x 0.03 in (4.75 x 0.76 mm) male quick connect terminals0.50 in. (12.7mm) nylon standoffs with three #6 (M3.5 x 0.6) screws2.5 H x 2.19 W x 1.88 D in. (63.5 x 55.6 x 47.8 mm)0 KgResistance sensing for conductive liquids with time delay95% non-condensing50 / 60-0.310 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/2 hp @ 250 VacElectromechanical relay±10%Manual / automatic resetCheckOrder
LLC843F26P120 VacIsolated SPDT3 s fixedElectrical: 0.25 in. (6.35 mm) male quick connect terminals; Reset switch and probes: 0.187 x 0.03 in (4.75 x 0.76 mm) male quick connect terminals0.50 in. (12.7mm) nylon standoffs with three #6 (M3.5 x 0.6) screws2.5 H x 2.19 W x 1.88 D in. (63.5 x 55.6 x 47.8 mm)0 KgResistance sensing for conductive liquids with time delay95% non-condensing50 / 60-0.310 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/2 hp @ 250 VacElectromechanical relay±10%Power outage manual reset delay ≤1CheckOrder
LLC845F25P120 VacIsolated SPDT5 s fixedElectrical: 0.25 in. (6.35 mm) male quick connect terminals; Reset switch and probes: 0.187 x 0.03 in (4.75 x 0.76 mm) male quick connect terminals0.50 in. (12.7mm) nylon standoffs with three #6 (M3.5 x 0.6) screws2.5 H x 2.19 W x 1.88 D in. (63.5 x 55.6 x 47.8 mm)0 KgResistance sensing for conductive liquids with time delay95% non-condensing50 / 60-0.310 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/2 hp @ 250 VacElectromechanical relay±10%Power outage manual reset delay ≤1CheckOrder
LLC8610F12M230 VacIsolated SPDT10 s fixedElectrical: 0.25 in. (6.35 mm) male quick connect terminals; Reset switch and probes: 0.187 x 0.03 in (4.75 x 0.76 mm) male quick connect terminals0.50 in. (12.7mm) nylon standoffs with three #6 (M3.5 x 0.6) screws2.5 H x 2.19 W x 1.88 D in. (63.5 x 55.6 x 47.8 mm)0 KgResistance sensing for conductive liquids with time delay95% non-condensing50 / 60-0.310 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/2 hp @ 250 VacElectromechanical relay±10%Manual / automatic resetCheckOrder
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