ABB Thermal Overload Relay TF42 1 NO/1 NC, Adjustable Current Range 1.7 to 2.3 A, 2.3A Contact Rating, 2 W Power Rating TF42

ABB TF42 Thermal Overload Relay TF42 incorporates advanced motor protection technology designed for industrial and commercial applications. Featuring a 3-pole direct mount configuration, this relay supports adjustable current ranging from 1.7 to 2.3 amperes full load current (FLC) motor rating and delivers a contact rating of 2.3 amperes at 690V AC/DC supply voltage.

The relay includes 1 normally open (NO) and 1 normally closed (NC) contact, ensuring reliable switching capabilities for motor overload protection. Its power rating of 2 watts contributes to minimal energy consumption during continuous operation. Installation is facilitated through robust screw-type terminals, providing secure and stable connections that withstand operational vibrations and electrical stresses.

Designed with versatility in mind, the TF42 operates across a temperature spectrum from -25 °C to 60 °C, suitable for a wide range of industrial and manufacturing environments. Its IP20 rating safeguards against incidental contact and solid particle ingress, making it appropriate for indoor electrical panels and control cabinets.

The relay’s compact form factor - 45 mm width, 70.5 mm depth, and 88.3 mm length - allows easy integration into confined control gear assemblies. Safety is enhanced by its compliance with numerous international standards such as IEC/EN 60947-1 and 60947-4-1, UL 508, Lloyd's Register, CE marking, RoHS Directive, and others, ensuring dependable operation and global acceptance.

Applications include motor protection circuits, industrial automation, HVAC systems, and manufacturing processes where reliable overload detection prevents motor damage and system downtime. The relay supports both automatic and manual reset functions, providing operational flexibility aligned with safety requirements.

Designed for motor protection with a full load current rating adjustable between 1.7 and 2.3 amperes. Features 1 normally open and 1 normally closed contact for reliable performance. Contact current rating is 2.3 amperes, suitable for various control applications.

Power rating of 2 watts ensures efficient operation with low energy loss. Screw terminal connections provide secure and easy installation. Automatic and manual reset methods allow flexible operational control. IP20 rated enclosure for protection against solid objects and limited ingress of liquids.

Operating temperature range from -25 °C to 60 °C for use in diverse environments. Compact dimensions: 45mm width, 70.5mm depth, and 88.3mm length. Compliant with international standards like IEC/EN 60947 series, UL 508, CE, RoHS, and more.

Explore the extensive range of ABB relays and control gear at EnvMart to find solutions tailored to your automation and motor protection needs.