Low Level Cutoff Liquid Level Control
LIttelfuse LLC6 Series from Flow Factor
The Littelfuse 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 Littelfuse LLC6’s 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.
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| Littelfuse LLC6 Liquid Level Cutoff Relay |
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 to the low level probe, the output relay and LED indicator remain de-energized until the manual reset switch is opened; then they energize immediately
Power Outage Manual Reset (Reset switch connected):
A power outage causes the output relay and LED indicator to de-energize. Upon restoration of power, if the liquid level is above the low level probe, the output relay and LED indicator will re-energize. If the liquid level is below the low level probe, the output relay and LED indicator remain de-energized until the Normally Closed (NC) reset switch is opened.
Features & Benefits:
Isolated 12VAC on Probe >> Prevents Electrolysis
Industry Standard 11 Pin Connection >> No Special Connections
LED indication >> Visual Indication we energized
Power Outage Protection >> Automatically resets after power outage
Littelfuse Part Numbers:
LLC6210F10M:
24Vac, 10 seconds Delay, 10K Ohms, Automatic/Manual Reset
LLC6410F10M:
120Vac, 10 seconds Delay, 10K Ohms, Automatic/Manual Reset
LLC643F10M:
120Vac, 3 seconds Delay, 26K Ohms, Automatic/Manual Reset
LLC6610F10M:
230Vac, 10 seconds Delay, 5K Ohms, Power Outage Manual Reset
Littelfuse LLC6 Accessories:
NDS-11 11 pin Socket
PSC11 Hold Down Clips
PHST-38QTN Electrode
LLP-24 Threaded Probe (24 inches)
