ABB TF42-7.6 1SAZ721201R1040 Thermal Overload Relay 5.7-7.6A

The ABB TF42-7.6 (article 1SAZ721201R1040) is a thermal overload relay that provides electromechanical motor protection against overload and phase failure. It covers a current setting range of 5.7 to 7.6 A and operates to trip class 10. The relay mounts directly onto block contactors, making it a compact and economical choice for main circuit motor protection.

Technical specifications:

• Series: TF42-7.6
• ABB article number: 1SAZ721201R1040
• EAN: 4013614398117
• Current setting range: 5.7 - 7.6 A
• Trip class: 10
• Trip contact: NC
• Signal contact: NO
• Reset mode: Automatic or manual (selectable)
• Mounting: Direct connection to block contactors; single mounting kits available as accessory

Features and benefits:

• Trip class 10 delivers fast response to overload conditions, limiting motor damage
• Phase failure detection guards against the heat and stress caused by single-phasing
• Temperature compensation keeps tripping behaviour consistent across varying ambient conditions
• Selectable automatic or manual reset adapts to different restart and safety requirements
• Trip-free mechanism, STOP function, and visual trip indication support safe operation and quick fault diagnosis

Applications:

• Motor starter protection in industrial control panels and switchgear assemblies
• Pump and fan circuits requiring dependable overload protection
• Conveyor and machine tool applications built around block contactor assemblies
• Direct-on-line and reversing starter configurations within the 5.7 - 7.6 A current range

Also known as: ABB TF42-7.6, TF42-7.6 1SAZ721201R1040, thermal overload relay 5.7-7.6 A, motor overload relay, electromechanical overload relay.