The PC-xxx-LLC-CZ 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 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). PC-xxx-LLC-CZ . Compatible with Crouzet’s PNR & PNRU series liquid level control Must use Model OT08PC or P1011-6 socket for UL Rating!Note: Manufacturer’s recommended screw terminal torque for the OT Series Octal Sockets is 12 in.-lbs. Input Characteristics Supply Voltage 95-120 VAC Frequency 50/60 Hz Functional Characteristics Probe Sense Voltage 5 V dc pulsed Debounce Time Delay 2 seconds Probe Sensitivity 4.7 k to 100 k adjustable Output Characteristics Output Contact Rating Pilot Duty 480 VA @ 240 VAC General Purpose 10 A @ 240 VAC General Characteristics Temperature Range -40 °C to 70 °C (-40 °F to 158 °F) Maximum Input Power 5 W Sandards Passed Electrostatic Discharge (ESD) IEC 61000-4-2, Level 3, 6 kV contact, 8 kV air Radio Frequency Immunity (RFI) 150 MHz, 10 V/m Fast Transients IEC 61000-4-4, Level 3, 2 kV inputpower and controls Safety Marks UL (OT08PC octal socket required) UL 508 (File #E68520) CE IEC60947-6-2 Dimensions H 44.45 mm (1.75”); W 60.33 mm (2.375”);D 104.78 mm (4.125”) Weight 0.65 lb. (10.4 oz., 294.84 g) Mounting Method DIN rail or surface mount(plug into OT08PC socket) Socket Available Model OT08PC (UL Rating 600 V)
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