ABB Thermal Overload Relay 1 NO/1 NC, Adjustable Current Range 35-38A, 35-40A FLC Motor Rating, 40A Contact Rating TF42

ABB TF42 Thermal Overload Relay model is designed for protecting electric motors from overload conditions by monitoring current flow with an adjustable range of 35 to 38 amperes. This device supports rated motor load currents from 35 to 40 amperes, making it suitable for a wide variety of motors in industrial and commercial applications.

The relay features one normally open (NO) and one normally closed (NC) auxiliary contact to provide reliable signaling to control systems. It has a rated relay contact current of 40 amperes and power consumption of just 2.8 watts. With a protection degree of IP20, the relay ensures adequate safeguarding against incidental contact and foreign objects.

Installation is simplified by its direct mount type with screw terminals for secure and easy wiring. The relay operates effectively within a temperature range of -25°C to 60°C, allowing deployment in demanding environments. Contact voltage is rated at 690 volts AC/DC, enabling compatibility with standard industrial control voltage levels.

The reset method is selectable, allowing automatic or manual resetting based on process requirements. Its robust design complies with numerous industry standards including IEC/EN 60947-4-1, UL 508, RoHS Directive 2002/95/EC, CE, Lloyd's Register approvals, CSA 22.2 No. 14, and more, ensuring global acceptance and reliability.

This thermal overload relay offers motor protection with phase loss sensitivity and includes a built-in STOP and TEST function to assist in maintenance and diagnostics. Its compact dimensions (Width 45mm, Length 88.3mm, Depth 70.5mm) make it ideal for panel or control cabinet installations where space optimization is needed.

Typical industrial applications include motor control centers, HVAC systems, manufacturing equipment, and automation setups where motor safety is critical. The relay is part of ABB's TF range designed for up to 38 amp applications ensuring a trusted choice for electrical control gear.

Adjustable current range from 35 to 38 amperes for precise motor protection. Rated Fusible Load Current (FLC) of 35 to 40 amperes for versatile motor compatibility. Includes one normally open (NO) and one normally closed (NC) auxiliary contacts for control signaling.

Power consumption is 2.8 watts with IP20 enclosure rating ensuring basic protection against solid objects. Can be mounted directly and supports screw terminal connections for secure wiring. Operation temperature ranges from -25°C up to 60°C suitable for various industrial environments.

Contact voltage rating is 690 volts AC/DC ensuring compatibility with high voltage control circuits. Supports both automatic and manual reset methods to suit different control system requirements. Complies with multiple international standards including IEC/EN 60947 series, UL 508, RoHS, CE, and others.

Explore more electrical and automation control solutions in the Thermal Overload Relay category at EnvMart for reliable motor protection needs.