Littelfuse LLC842F103M Single-Probe Liquid Level Control - 120VAC

The Littelfuse LLC842F103M is a single-probe conductive liquid level control designed for low liquid level cutoff protection in industrial and HVAC applications. This reliable control unit monitors liquid levels and provides automatic protection against low-level conditions that could damage pumps, boilers, or other equipment.

Key Features:

• 120VAC input voltage with 2-second fixed time delay
• 10kΩ fixed sensing resistance for consistent operation
• 10A SPDT (Form C) isolated output relay for reliable switching
• Manual/automatic reset functionality for flexible operation
• LED indicator illuminates when output relay is energized
• Open board chassis mount design
• Quick connect terminals for easy installation
• Operating temperature range: -40°C to 60°C

Applications: Suitable for monitoring water, oils, chemicals, and other conductive liquids in boilers, tanks, pumps, and process equipment. This control provides critical low-level cutoff protection to prevent equipment damage from dry running conditions.

Certifications: UL recognized as a limit switch under UL353 and CSA certified under Standard 14, ensuring compliance with safety standards for industrial and commercial installations.