ABB Thermal Overload Relay Trip Class

The ABB TF42 thermal overload relay protects three-phase motors from damage caused by prolonged overload and phase failure. It is also called a thermal overload protection relay or motor overload relay. It is designed to mount directly to compatible ABB AF contactors in motor starter assemblies. It is a Class 10 relay.

Key Features:

• Thermal overload protection for motor starter and motor control circuits
• Class 10 trip characteristic for standard motor starting applications
• Adjustable current setting range, so the relay can be matched to the motor's full-load current
• Phase-loss sensitivity to help protect against single-phasing
• Manual or automatic reset selection
• Test and stop functions for commissioning and troubleshooting
• Auxiliary contacts for signaling or control-circuit interlocking when an overload trips
• Compact design for contactor-mounted installation in control panels

ABB is a well-established manufacturer of industrial motor control and protection products. The TF42 series gives dependable motor protection in a range of industrial and commercial applications, including pumps, fans, compressors and conveyors. Choose the variant whose current range matches your motor's rated current.