ABB TF42-1.0 Thermal Overload Relay provides reliable protection for motors against overloads and phase failures. Designed for seamless integration with AF series contactors, this relay features an adjustable current setting range of 0.74–1.0 A and is rated for operation up to 690V AC. It is an essential component for industrial motor control centers, offering precise trip characteristics and manual/automatic reset options to ensure consistent uptime and system safety in demanding electrical environments.

Key Features:

• Brand: ABB – a global leader in power and automation technologies.

• Product Type: Thermal Overload Relay for motor protection.

• Model: TF42-1.0 (Part Number: 1SAZ721201R1023).

• Current Range: Adjustable from 0.74 A to 1.0 A.

• Voltage Rating: $U_e$ = 690V AC / $U_i$ = 690V AC.

• Auxiliary Contacts: 1NO (97-98) and 1NC (95-96) for control circuit integration.

• Certifications: CE, UKCA, UL Listed, and ATEX/IECEx for hazardous areas.

• Standards: Built to IEC/EN 60947-4-1 and IEC/EN 60947-5-1 specifications.

Benefits:

• Enhanced Reliability: Provides precise Thermal Protection to prevent motor burnout due to overload or phase loss.

• Operational Flexibility: Features a Selectable Reset function allowing for either manual (M) or automatic (A) operation.

• Space Efficiency: The Compact Design mounts directly onto contactors, saving valuable space within industrial enclosures.

• Global Compliance: Fully certified for international use, ensuring Standardized Safety across different regional markets.

• Industrial Durability: Engineered for high-performance environments with a robust housing and high Short-Circuit Protection ratings.

• Maintenance Optimization: Simplifies troubleshooting with a visible Trip Indicator and dedicated test/stop buttons.