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Littelfuse LLC54AA Liquid Level Control

The LLC5 Series Liquid Level Controls provide reliable, dual-probe conductive liquid level detection in a compact plug-in design, suitable for both fill and drain operations. These controls feature pulsed DC voltage to prevent electrolytic plating and overcomes false triggers from debris or foam with sensitivity adjustments. The system operates with an electromechanical relay, isolates the control voltage from the load, and includes an LED indicator for status. Additional accessories like electrode probes and mounting kits improve installation flexibility, making LLC5 ideal for industrial liquid level management.

Authorized Distributors
Source:Newark
Part No:LLC54AA
Stock:18
Inv Date:05-28-2026
Price: Unit price: $158.25
Buy/RFQ:
Source:DigiKey
Part No:LLC54AA
Stock:19
Inv Date:05-28-2026
Price: Unit price: $153.64
Buy/RFQ:
Part No:LLC54AA
Stock:27
Inv Date:05-29-2026
Price: Unit price: $148.17
Buy/RFQ:
Part No:LLC54AA
Stock:0
Inv Date:05-28-2026
Price: Unit price: $153.64
Buy/RFQ:
Part No:LLC54AA
Stock:0
Inv Date:05-28-2026
Price: Unit price: $115.64
Buy/RFQ:
Part No:LLC54AA
Stock:0
Inv Date:05-28-2026
Price: Unit price: $115.64
Buy/RFQ:

Littelfuse LLC54AA Liquid Level Control Specifications:

  • Sensing Voltage: 24VAC, 120VAC, 230VAC
  • Sensing Resistance: Factory fixed or adjustable to 100K ohms, with tolerance ±10%
  • Response Time: <1 second
  • Output Type: Electromechanical relay, SPDT
  • Rating: 5A resistive @ 240VAC, 1/10 hp
  • Protection: Isolation voltage 1500V RMS between input, output, and probe
  • Mechanical Mounting: Plug-in octal 8-pin socket, H 60.7 mm, W 45.2 mm, D 76.5 mm
  • Environmental: -20° to 60°C operating, -40° to 80°C storage
  • Weight: Approximately 6 oz (170 g)

Buy the Buy LLC Protection Relays LLC54AA Part Number LLC54AA Online

Purchase the LLC protection relay LLC54AA online today to enhance your liquid level control systems. Featuring dual probes, pulsed DC sensing, and adjustable sensitivity, this relay ensures accurate detection of conductive liquids in tanks. Its plug-in design simplifies installation and maintenance, while the electromechanical relay offers dependable operation for fill and drain control. Accessories like electrodes and mounting kits enable flexible setup for various industrial environments. Experience reliable, fail-safe liquid management with this high-quality control solution, available for quick online purchase.

Buy LLC protection relay LLC54AA now and ensure precise, reliable liquid level control in your industrial applications with advanced sensing features.

Frequently Asked Questions

Where can I buy Littelfuse LLC54AA?

You can click on the BUY or RFQ button to purchase LLC54AA from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part LLC54AA?

You can download the LLC54AA datasheet or visit the Littelfuse website for support.

Who is the manufacturer of LLC54AA?

Littelfuse

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