Watlow SD3L-LJAA-AARG Temperature Limit Controller 24-28V AC DC Relay Output SD3LLJAAAARG

Description:

The Watlow SD3L-LJAA-AARG temperature limit controller is used in industrial thermal process control and overtemperature protection systems requiring compact panel-mounted monitoring and reliable shutdown control performance. Commonly installed in industrial ovens, heat treatment equipment, packaging machinery, and process heating systems using 24-28V AC/DC powered limit controllers with relay output for stable thermal management and equipment protection. Maintenance teams, OEMs, and system integrators use this temperature limit controller for replacement, retrofit, and thermal safety control upgrades in industrial automation environments.

Applications:

The Watlow SD3L-LJAA-AARG temperature limit controller is commonly used in industrial heating systems requiring accurate temperature limit monitoring and dependable protective shutdown capability. It is applied in process heaters, plastics processing equipment, laboratory heating systems, and OEM thermal control panels to help maintain safe operating temperatures and prevent overheating conditions.

Technical Specifications:

• Manufacturer Part Number (MPN): SD3L-LJAA-AARG
• Product Type: Temperature Limit Controller
• Brand: Watlow
• Series: SD Series
• Control Type: Temperature Limit Controller
• Supply Voltage: 24-28V AC/DC
• Frequency: 50/60Hz
• DIN Size: 1/32 DIN
• Mounting Type: Panel Mount
• Input Type: Universal Input
• Output Type: Relay Output
• Sensor Compatibility: Thermocouple / RTD / Process Inputs
• Display Type: Digital LED Display
• Protection Function: Overtemperature Shutdown Protection
• Application Type: Industrial Thermal Process Control
• Protection Rating: Industrial Front Panel Protection
• Certifications: UL, CSA, CE

Common Replacements:

• Watlow EZ-ZONE PM Limit Controller
• Omron E5CC Temperature Limit Controller
• Honeywell UDC3200 Limit Controller