ABB 1SAZ811201R1005 TF65-53 44-53A 3P Thermal Overload Relay

The ABB TF65-53 thermal overload relay (SKU: 1SAZ811201R1005) is a 3-pole motor protection device rated for 44 to 53A, designed for reliable overcurrent and overload protection in industrial automation and control panel applications. Part of the ABB TF65 series, the TF65-53 delivers robust thermal protection with a compact footprint of 54.9mm × 101.4mm × 106.9mm, making it a trusted choice for engineers and procurement professionals specifying motor protection components worldwide.

Technical Specifications

Certifications & Standards

• ATEX: Approved for use in explosive atmospheres
• UL: Underwriters Laboratories listed for North American markets
• LR: Lloyd's Register type approval
• RINA: Italian Naval Register certification
• RMRS: Russian Maritime Register of Shipping approval
• IEC 60947-1: General rules for low-voltage switchgear and controlgear
• EN 60947-1: European harmonised standard for low-voltage switchgear
• IEC/EN 60947: Comprehensive low-voltage switchgear and controlgear standard
• IEC 60068-2: Environmental testing standard
• EN 60947: European low-voltage switchgear standard
• EN 60947-4: Standard for contactors and motor starters
• EN 60947-5: Standard for control circuit devices and switching elements
• EN 45555: General methods for the assessment of the ability to recover materials and energy from electrical and electronic equipment
• UL 2799: Standard for electrical systems for electric-drive vehicles
• CSA: Canadian Standards Association certified
• RoHS: Restriction of Hazardous Substances compliant
• REACH: EU chemical safety regulation compliant
• WEEE: Waste Electrical and Electronic Equipment directive compliant
• CCC: China Compulsory Certification
• CE: European Conformity marking
• UKCA: UK Conformity Assessed marking for Great Britain market
• EAC: Eurasian Conformity mark for EAEU countries
• IECEx: International standard for equipment used in explosive atmospheres

Applications & Use Cases

• Motor overload and overcurrent protection in industrial control panels
• Protection of three-phase motors rated up to 53A in manufacturing environments
• Integration with ABB contactors and motor starters in automation systems
• Use in hazardous area installations (ATEX/IECEx certified)
• Marine and offshore electrical systems (LR, RINA, RMRS approved)
• Global industrial deployments requiring multi-regional certification compliance