Description
The ABB TF42-24 is a thermal overload relay engineered to provide dependable overcurrent and overload protection for motors used in commercial HVAC systems, control panels, and industrial applications. Designed to work in conjunction with ABB contactors, this relay monitors motor current and trips the circuit when sustained overload conditions are detected — helping prevent motor burnout, extend equipment life, and reduce costly downtime.
Key Features
- Thermal overload protection for three-phase and single-phase motor applications
- Compatible with ABB contactor series for seamless panel integration
- Manual and automatic reset options for flexible operation
- Adjustable current setting range to match motor full-load amperage
- Built-in trip indicator for quick fault identification
- Auxiliary contacts for remote signaling and control circuit integration
- Compact, DIN-rail-friendly design for space-efficient panel layouts
Applications
- Commercial HVAC motor starters and control panels
- Pump and fan motor protection
- Industrial motor control centers (MCCs)
- Compressor and blower motor circuits
Why Choose ABB
ABB is a globally recognized leader in electrification and motor control technology. The TF42 series thermal overload relays are built to IEC standards, offering proven reliability and precise trip characteristics that safeguard motors across a wide range of HVAC and industrial environments.
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