ABB 1SAZ721201R1014 TF42-0.41 0.31-0.41A 3P Thermal Overload Relay

The ABB TF42-0.41 thermal overload relay (SKU: 1SAZ721201R1014) is a 3-pole motor protection device with a current setting range of 0.31 to 0.41 A, designed for reliable overload and phase-failure protection in industrial motor control applications. Part of ABB's proven TF42 series, this compact relay measures 48 × 78 × 92 mm and weighs just 0.145 kg, making it well suited for space-efficient control panel installations.

Technical Specifications

Certifications & Standards

• LR: Lloyd's Register type approval
• RINA: Registro Italiano Navale marine certification
• RMRS: Russian Maritime Register of Shipping approval
• UL: Underwriters Laboratories listing (UL 2799)
• ATEX: Explosive atmosphere directive compliance
• IECEx: International explosive atmosphere certification
• IEC/EN 60947-1: Low-voltage switchgear and controlgear — General rules
• IEC/EN 60947-4: Contactors and motor-starters
• IEC/EN 60947-5: Control circuit devices and switching elements
• IEC 60335-2: Household and similar electrical appliances safety
• IEC 60068-2: Environmental testing
• EN 60947-1: European low-voltage switchgear general rules
• EN 60947-4: European contactors and motor-starters standard
• EN 60947-5: European control circuit devices standard
• EN 45555: General methods for the assessment of the ability to recover materials and energy
• CSA: Canadian Standards Association certification
• CCC: China Compulsory Certification
• CE: European Conformity marking
• UKCA: UK Conformity Assessed marking
• EAC: Eurasian Conformity marking
• RoHS: Restriction of Hazardous Substances compliance
• REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals compliance
• WEEE: Waste Electrical and Electronic Equipment directive compliance

Applications & Use Cases

The ABB TF42-0.41 thermal overload relay is engineered for motor protection in industrial automation and control panel environments. Its 0.31–0.41 A operating range makes it ideal for protecting small motors and loads in manufacturing lines, HVAC systems, pump stations, and process control equipment. The broad certification portfolio — including ATEX and IECEx — enables deployment in hazardous area classifications, while marine approvals (LR, RINA, RMRS) qualify the TF42-0.41 for shipboard electrical systems. Procurement engineers and panel builders will appreciate its compliance with global standards (UL, CSA, CCC, CE, UKCA, EAC), streamlining international project approvals.