ABB TF65-47 1SAZ811201R1004 Thermal Overload Relay

The ABB TF65-47 (article 1SAZ811201R1004) is a thermal overload relay with a current setting range of 36 to 47 A. It serves as an electromechanical protection device for motor main circuits, guarding against overload conditions and phase failure. The relay operates at trip class 10, enabling fast and dependable disconnection when a fault is detected.

Technical specifications:

• Series: TF65-47
• ABB article number: 1SAZ811201R1004
• EAN: 4013614482946
• Type: Thermal overload relay
• Current range: 36 - 47 A
• Trip class: 10
• Trip contact: NC (normally closed)
• Signal contact: NO (normally open)
• Reset mode: Automatic or manual - selectable
• Mounting: Direct connection to block contactors; single mounting kits available as accessory

Features and benefits:

• Temperature compensation maintains accurate trip response across varying ambient conditions
• Selectable automatic or manual reset gives flexibility in fault recovery procedures
• Trip-free mechanism prevents the relay from being held closed during a fault condition
• STOP function allows manual interruption of the circuit independently of the overload condition
• Trip indication provides immediate visual feedback when a fault has caused disconnection
• Phase failure detection protects motor windings from damage caused by loss of a supply phase

Applications:

• Overload and phase failure protection for three-phase motors in industrial installations
• Motor starter assemblies built around block contactors
• Protection of pump and fan motors in process and HVAC systems
• Conveyor, compressor, and machine drive motor protection circuits

Also known as: ABB TF65-47, TF65-47 1SAZ811201R1004, thermal overload relay 36-47 A, motor overload relay 47 A, electromechanical motor protection relay.