ABB TF65-40 – thermal overload relay

The ABB TF65-40 is a thermal overload relay designed to protect three-phase motors against overload and phase failure. It is typically used together with ABB contactors in motor starter combinations.

The relay features adjustable current settings from 28 to 40 A and provides reliable thermal protection in industrial automation and motor control systems.

Technical overview:
• Series: TF65
• Adjustable current range: 28–40 A
• Trip class: Class 10
• Protection: overload and phase loss
• Reset mode: manual / automatic (selectable)
• Mounting: direct mounting to contactor
• Application: motor protection

Typical applications:
• Motor starter assemblies
• Conveyor systems
• Pumps and compressors
• Industrial machinery
• HVAC systems

About the manufacturer:
ABB is a global leader in electrification and automation, offering motor protection, control and power distribution solutions worldwide.