TF140DU-142-V1000

Name: TF140DU-142-V1000
Brand: ABB
SKU: TF140DU-142-V1000

The ABB TF140DU-142 thermal overload relay is an economic electromechanical protection device designed for main circuit applications. It offers reliable and fast protection for motors against overloads and phase failures, with adjustable current settings and automatic or manual reset options.

Product ModelTF140DU-142-V1000

Material Number1SAZ431301R1004

Product ID110693

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe TF140DU-142 thermal overload relay provides fast and reliable protection for motors against overloads and phase failures, ensuring continuous operation and minimizing downtime.
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2. Adjustable Current SettingThe device allows for adjustable current settings, enabling precise customization to meet specific motor requirements and ensuring optimal protection.
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3. Automatic or Manual ResetUsers can select between automatic or manual reset options, providing flexibility in operation and maintenance procedures.
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4. Trip-Free MechanismThe trip-free mechanism ensures that the relay will not trip during operation, reducing false tripping and enhancing reliability.
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Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Product Net Width

89 mm

Product Net Height

140 mm

Product Net Depth / Length

126 mm

Product Net Weight

0.82 kg

Setting Range

110 ... 142 A

Rated Operational Voltage

Auxiliary Circuit 440 V DC Auxiliary Circuit 500 V AC Main Circuit 690 V AC Main Circuit 440 V DC

5. Phase Loss SensitivityThe relay is phase loss sensitive, providing additional protection by detecting and responding to phase failures, which can be critical in maintaining motor operation.

Rated Operational Current (Ie)

142 A

Rated Frequency (f)

Auxiliary Circuit 50 Hz Auxiliary Circuit 60 Hz Auxiliary Circuit DC Main Circuit 60 Hz Main Circuit 50 Hz Main Circuit DC

Rated Impulse Withstand Voltage (Uimp)

Auxiliary Circuit 6 kV Main Circuit 8 kV

Rated Insulation Voltage (Ui)

690 V

Number of Poles

Number of Auxiliary Contacts NC

Number of Auxiliary Contacts NO

Number of Protected Poles

Conventional Free-air Thermal Current (Ith)

Auxiliary Circuit NC 10 A Auxiliary Circuit NO 6 A

Rated Operational Current AC-15 (Ie)

(120 V) NC 3 A (120 V) NO 1.5 A (240 V) NC 3 A (240 V) NO 1.2 A (400 V) NC 0.75 A (400 V) NO 0.37 A (440 V) NC 0.75 A (440 V) NO 0.37 A (500 V) NC 0.3 A (500 V) NO 0.25 A

Rated Operational Current DC-13 (Ie)

(125 V) NC 0.25 A (125 V) NO 0.25 A (24 V) NC 1.25 A (24 V) NO 1.25 A (250 V) NC 0.12 A (250 V) NO 0.04 A (60 V) NC 0.25 A (60 V) NO 0.25 A

Degree of Protection

Housing IP20 Main Circuit Terminals IP10

Pollution Degree

Connecting Capacity Auxiliary Circuit

Flexible with Ferrule 1/2x 0.75 ... 2.5 mmÂ² Flexible 1/2x 0.75 ... 2.5 mmÂ² Rigid 1/2x 0.75 ... 4 mmÂ²

Connecting Capacity Main Circuit

Flexible with Ferrule 1/2x 16 ... 70 mmÂ² Flexible with Insulated Ferrule 1/2x 16 ... 70 mmÂ² Flexible 1/2x 16 ... 70 mmÂ² Rigid 1/2x 16 ... 70 mmÂ²

Tightening Torque

Auxiliary Circuit 0.8 ... 1.2 NÂ·m Main Circuit 8 ... 10 NÂ·m

Wire Stripping Length

Auxiliary Circuit 9 mm Main Circuit 25 mm

Recommended Screw Driver

Auxiliary Circuit Pozidriv 2 Main Circuit Hexagon 4

Mounting Position

any

Power Loss

at Rated Operating Conditions per Pole 2.3 W

Suitable For

AF116 AF140

Standards

IEC/EN 60947-1 IEC/EN 60947-4-1 IEC/EN 60947-5-1 UL 60947-1 UL 60947-4-1

Maximum Operating Voltage UL/CSA

Main Circuit 600 V AC

Contact Rating UL/CSA

(NC:) B600 (NO:) C300

Connecting Capacity Main Circuit UL/CSA

Flexible 1/2x 6-2/0 AWG Stranded 1/2x 6-2/0 AWG

Connecting Capacity Auxiliary Circuit UL/CSA

Flexible 1/2x 18-14 AWG Stranded 1/2x 18-14 AWG

Tightening Torque UL/CSA

Auxiliary Circuit 12 inÂ·lb

Ambient Air Temperature

Operation -25 ... +55 Â°C Operation Compensated -25 ... +55 Â°C Storage -40 ... +70 Â°C

Ambient Air Temperature Compensation

Yes

Maximum Operating Altitude Permissible

2000 m

Resistance to Shock acc. to IEC 60068-2-27

11 ms Pulse 12g

RoHS Status

Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019

Toxic Substances Control Act - TSCA

2CMT2023-006525

ETIM 5

EC000106 - Thermal overload relay

ETIM 6

EC000106 - Thermal overload relay

ETIM 7

EC000106 - Thermal overload relay

ETIM 8

EC000106 - Thermal overload relay

eClass

V11.0 : 27371501

UNSPSC

39121520

IDEA Granular Category Code (IGCC)

5364 >> Overload relay

E-Number (Norway)

4116778

Manufacturer ID

1SAZ431301R1004