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Littelfuse LLC845F25P Liquid Level Control 2.5H X 2.19W X 1.88D 120 VAC

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Special Price $88.03 Regular Price $101.23
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SKU
LLC845F25P
The Littelfuse LLC845F25P single probe conductive-liquid level control is used in low liquid level cutoff in HVAC system. It is an AC operated model with a fixed time delay of 5-seconds and has an SPDT output relay that switches on when the liquid level is low. This part is useful in avoiding damage to the pump due to low levels of the liquid being pumped, making it suitable for use in the pumping of liquids. Features include the ability to reset after power is restored, LED lights for feedback moisture and corrosion resistance that improves the and safety of HVAC systems.
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HVAC Controls & Electrical, Control Boards & Modules
Manufacturer:
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Specifications

  • Type: Liquid Level Control
  • Dimensions: 2.5 H x 2.19 W x 1.88D
  • Voltage: 120 VAC
Manufacturer Name: Littelfuse
Product Number: LLC845F25P
OEM Part Number: LLC845F25P
Product Description: Liquid Level Control
Weight:0.4lbs/181.44g

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Product Questions (2)
Customer Questions
What maintenance is required for the Littelfuse LLC845F25P Liquid Level Control?

Inspect probe and terminal connections regularly for scale, corrosion, or looseness. Clean sensing surfaces to maintain accurate liquid detection and accurate switching. Verify wiring integrity and mounting stability. Routine checks support ensuring consistent operation and preventing control signal errors in liquid systems.

What are the common issues with the Littelfuse LLC845F25P Liquid Level Control?

  • False level readings due to scale buildup.
  • Relay switching failure or sticking.
  • Wiring faults are causing intermittent operation.
  • Sensor contamination reduces accuracy.
  • Erratic pump or load cycling.
  • Calibration drift leading to incorrect control levels.

Installation Steps

Step 1: Disconnect main power supply completely for safety.

Step 2: Mount the liquid level control securely on the panel.

Step 3: Wire input supply as per wiring diagram.

Step 4: Connect probe electrodes firmly to terminals.

Step 5: Secure all connections and ensure proper grounding of unit.

Step 6: Restore power and test liquid level response operation.