Protection Relays Pump Controls and Liquid Level Controls LLC6 SERIES Low Level Cutoff Liquid Level Controls Description The LLC6 Series is a plug-in, single-probe conductive liquid level control designed for low liquid level cutoff protection. It offers a factory fixed time delay of 1 - 60s and is available in input voltages of 24, 120, or 230VAC. LED indicator illuminates whenever the LLC6s 10A, SPDT output relay is energized. Available with automatic/manual reset or a special manual reset with power outage feature, which auto resets the unit when power is restored and the water level is acceptable. 24VAC and 120VAC units are recognized as limit switches under UL353 (230VAC units are UL508) and CSA certified under Standard 14. 11-PIN Operation Automatic Reset (Reset terminals not connected): When liquid rises to the low level cutoff probe, the output relay and the LED indicator energize. When the liquid falls below low level cutoff probe, the output relay and the LED indicator de-energize after a fixed time delay. Manual Reset (Reset switch connected): When the liquid level falls below the low level probe, the output relay and LED de-energize after a fixed time delay. When the liquid level rises Wiring Diagram to the low level probe, the output relay and LED indicator remain de-energized until the manual reset switch is opened then they PC = Probe energize immediately. Common P = Probe Power Outage Manual Reset (Reset switch connected): A V = Voltage power outage causes the output relay and LED indicator to R = Optional NC de-energize. Upon restoration of power, if the liquid level is N/L2 Reset Switch above the low level probe, the output relay and LED indicator will re-energize. If the liquid level is below the low level probe, Connect common L1 to conductive tank. the output relay and LED indicator remain de-energized until the Additional probe is Metal Tank or use Normally Closed (NC) reset switch is opened. additional Probe necessary for non-conductive or insulated tanks. Features & Benefits FEATURES BENEFITS Isolated 12VAC on probe Prevents electrolysis Industry standard 11-pin Eliminates need for special connectors octal plug connection LED indication Visual indication output relay is energized Power outage protection Automatically resets the unit when power is (see ordering table restored and the water level is acceptable for models) Ordering Information TIME DELAY SENSE MODEL INPUT VOLTAGE RESET (FIXED) RESISTANCE LLC6210F10M 24VAC 10s 10k Manual/Automatic LLC6410F10M 120VAC 10s 10k Manual/Automatic LLC643F26M 120VAC 3s 26k Manual/Automatic LLC6610F5P 230VAC 10s 5k Power Outage Manual Reset If you dont find the part you need, call us for a custom product 800-843-8848 2016 Littelfuse Protection Relays & Controls Rev: 1-A-062716 wwwwww.littelfuse.com/.littelfuse.com/llc6Protection Relays Pump Controls and Liquid Level Controls LLC6 SERIES Accessories Specifications Control BZ1 Front Panel Mount Kit Type ON/OFF (single level) resistance sensor with Provides an easy method of through-the-panel built-in time delay to prevent rapid cycling mounting of 8- or 11-pin plug-in timers, flashers, Sense Voltage 12VAC nominal at probe terminals and other controls. Sense Resistance Fixed 5K - 250K Sense Resistance Tolerance Fixed 10% NDS-11 11-pin Socket Time Delay 11-pin 35mm DIN rail or surface mount. Surface Range 1 - 60s in 1s increments mounted with two 6 (M 3.5 x 0.6) screws or Tolerance 20% snaps onto a 35 mm DIN rail. Uses PSC11 hold- Repeat Accuracy 10% down clips. Time Delay vs Temp. & Voltage 10% PSC11 Hold-down Clips Power Outage Reset Delay 1s Securely mounts plug-in controls in any position. Input Provides protection against vibration. Use with Voltage 24, 120, or 230VAC NDS-11 Socket. Sold in pairs. Tolerance 24VAC +20% to -15% PHST-38QTN Electrode 120 or 230VAC +10% to -20% Designed for a maximum steam pressure of AC Line Frequency 50/60 Hz 240 PSI 400 F. UL353 Recognized. Output LLP-24 Threaded Probe (24) Type Electromechanical relay Threaded stainless steel probe measuring 24 Form Non-isolated, SPDT (61 cm) long. For use with PHST-38QTN liquid Rating 10A resistive 240VAC 1/4 hp 125VAC level control electrodes. 1/2 hp 250VAC Protection Surge IEEE C62.41-1991 Level A Isolation Voltage 2500V RMS between input & output terminals Mechanical Mounting Plug-in socket Termination 11-pin relay type Dimensions H 73.9 mm (2.91) W 60.7 mm (2.39) D 45.2 mm (1.78) Environmental Operating/Storage Temperature -40 to 60C / -40 to 80C Humidity 95% relative, non-condensing Weight 7.3 oz (207 g) 2016 Littelfuse Protection Relays & Controls Rev: 1-A-062716 wwwwww.littelfuse.com/.littelfuse.com/llc6