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ABB TF14 Thermal Overload Relay 1 NO/1 NC 110A F.L.C 690V AC 3P TF14

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ABB TF14 Thermal Overload Relay 1 NO/1 NC 110A F.L.C 690V AC 3P TF14

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Category Thermal Overload Relay Brand ABB Condition New

Specifications

Country of Origin	Czech Republic
Brand	ABB
Length	89mm
Model	TF14
Depth	126mm
IP Rating	IP10, IP20
Width	140mm
Mount Type	Under Contactor Mount
Series	TF14
Maximum Operating Temperature	55°C
Minimum Operating Temperature	-25°C
Terminal type	Flat
Supply Voltage	690V ac
Contact Voltage	440, 500V dc
Reset Method	Automatic & Manual
Normal State Configuration	1 NO/1 NC
Number of Auxiliary Contacts	2
Pole and Throw Configuration	3P
Control Voltage	690V ac
FLC Motor Rating	110A
Adjustable Current Range	80 → 140 A

Key Features

Provides protection for motors against overload and phase failure.
Features manual or automatic reset option for flexible control.
Includes 1 normally open (NO) and 1 normally closed (NC) auxiliary contact.
Equipped with TEST and STOP functions and trip indication on the front.
Adjustable current range from 80 to 140 A for varied applications.
Temperature compensation for reliable operation across -25°C to 55°C.
Suitable for both three-phase and single-phase motor applications.
Compliance with IEC/EN and UL standards ensuring quality and safety.

Product Description

ABB TF14 Thermal Overload Relay model TF140DU-110 is a high-quality protective device designed primarily for motor overload and phase failure detection in electrical circuits. Rated for a full load current (FLC) of 110 amperes and operating voltage up to 690V AC across three poles, it offers reliable performance in industrial and commercial electrical control systems.

This overload relay supports manual and automatic reset methods, allowing operators to select the most convenient reset mode based on operational requirements. It features one normally open (NO) and one normally closed (NC) auxiliary contact that provide precise control and signaling capabilities to connected systems.

The product includes advanced functionalities such as a TEST and STOP function with a clear trip indicator on the device’s front, facilitating faster diagnostics and maintenance. The device has an adjustable current range from 80 to 140 A, accommodating a wide variety of motor protection needs.

With a robust build complying with IEC/EN 60947-1, 60947-4-1, 60947-5-1, and UL standards, this Thermal Overload Relay ensures durability and safety in operation. It has IP ratings IP10 and IP20, suitable for common industrial environments. Temperature compensation allows stable operation within ambient temperatures from -25°C to 55°C.

The TF14 relay’s compact dimensions (length 89mm, width 140mm, depth 126mm) and flat terminal type support easy installation under contactors. It is supplied with a control voltage and supply voltage rating of 690V AC, making it compatible with many electrical motor control setups.

Designed to protect motors in industrial, manufacturing, HVAC, and process automation settings, this relay enhances motor lifespan and system reliability by preventing overheating and electrical fault damage.

Provides protection for motors against overload and phase failure. Manual or automatic reset selectable for operational flexibility. Trip class 10A ensures timely response to motor load conditions. Includes two electrically isolated auxiliary contacts: 1 NO and 1 NC.

TEST and STOP functions with trip indication for simplified fault checks. Adjustable current setting range of 80 to 140 A. Robust compliance with IEC and UL electrical standards. Suitable for both single-phase and three-phase motor circuits.

Explore the extensive range of ABB relays and contactors available at EnvMart for enhanced electrical control and protection solutions.