Pump Control from Littelfuse in Small Package - Octal Socket
The Littelfuse PC-xxx-LLC-CZ and PC-xxx-LLC-GM series 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 (see specs below). The units have an adjustable sensitivity knob (4.7 k to 100 k 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 set point (due to liquid splashing in the tank). The Little Fuse 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).
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| Littelfuse Pump Protection Relay |
Littelfuse - PC-XXX-LLC-CZ
Compatible with Crouzet PNR & PNRU Series Liquid Level
Littelfuse - PC-XXX-LLC-GM
Compatible with Gems 16M Series Liquid Level
Specifications:
Supply Voltage:
PC-100-LLC_CZ ... 95-120VAC
PC-100-LLC_GM ... 95-120VAC
PC-200-LLC_CZ ... 190-240VAC
PC-200-LLC_GM ... 190-240VAC
Frequency 50/60 Hz
Probe Sense Voltage is 5VDC pulsed
Debounce Time Delay is 2 seconds
Probe sensitivity is 4.7k to 100k Adjustable
Output contact rating is 10A @ 240VAC
Approvals are UL and CE
Mounting is via Octal Socket; DIN rail or surface
Octal socket part number is OT08PC
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Flow Factor
216-765-4231
Littelfuse PC-100-LLC_GM...Littelfuse PC-100-LLC_CZ... Littelfuse
Littelfuse PC-200-LLC_GM...Littelfuse PC-200-LLC-CZ... Littelfuse
