ABB TF42 Thermal Overload Relay 1 NO/1 NC, 4.2A to 5.7A Adjustable Current Range, 2W Power Rating TF42

ABB TF42 Thermal Overload Relay, model TF42, is a high-performance motor protection relay designed for industrial use. It offers a current adjustable setting range from 4.2 to 5.7 amperes and a power rating of 2 watts, providing reliable overload protection for motors.

This relay features a 1 normally open and 1 normally closed auxiliary contact configuration, with secure screw-type terminals for wiring. It supports a supply voltage of up to 600V and contact voltage rating of 690V AC/DC, suitable for a wide range of electrical systems.

Its IP20 rating ensures protection against solid ingress, while its operating temperature range from -25°C to +60°C allows it to function effectively even in fluctuating ambient conditions. The relay includes both automatic and manual reset options, enabling flexible installation and operation according to specific application requirements.

The compact design with dimensions length 88.3mm, depth 70.5mm, and width 45mm facilitates easy installation. The device complies with numerous international standards such as IEC/EN 60947-5-1, IEC/EN 60947-4-1, UL 508, RoHS Directive, CE marking, and others, ensuring safety and quality compliance.

Typical applications of the ABB TF42 Thermal Overload Relay include industrial machinery, factory automation, HVAC units, and lighting rigs where reliable motor overload protection is essential.

Adjustable current setting range from 4.2 to 5.7 amperes for precise overload protection. Features 1 normally open and 1 normally closed auxiliary contact configuration. Power rating of 2 watts suitable for industrial applications.

Supports supply voltage up to 600V and contact voltage of 690V AC/DC. Equipped with screw terminals for secure wiring connections. IP20 rated for protection against ingress of solid objects. Automatic and manual reset methods to suit various operational requirements.

Wide operating temperature range from -25°C to +60°C for ambient air compensation. Compact dimensions of 88.3mm length, 70.5mm depth, and 45mm width. Complies with international standards including IEC/EN 60947 series, UL 508, RoHS, CE, cULus and others.

This Thermal Overload Relay ensures your motor enjoys long operational life by quickly sensing overload and phase failure conditions, using bimetal elements and a trip class 10. The front trip indicator provides clear local signaling, while the current adjustment dial ensures protection matches motor ratings.

Explore varied models and related electrical protection devices within EnvMart’s comprehensive range of relays and contactors for industrial and automation solutions.