TF140DU-135

Name: TF140DU-135
Brand: ABB
SKU: TF140DU-135

The ABB TF140DU-135 thermal overload relay is an economic electromechanical protection device for the main circuit, providing reliable and fast protection for motors against overload and phase failures. It features a compact design, trip class 10, and temperature compensation from -25 to 55°C[1][4].

Product ModelTF140DU-135

Material Number1SAZ431201R1003

Product ID88070

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe TF140DU-135 offers fast and reliable protection for motors against overload and phase failures, ensuring continuous operation and minimizing downtime.
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2. Compact DesignAvailable in a compact size of 89 mm width, the TF140DU-135 is ideal for space-constrained applications without compromising on performance.
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3. Trip Class 10With a trip class of 10, the device provides precise and reliable operation, ensuring that motors are protected from harmful overloads.
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4. Temperature CompensationThe relay features temperature compensation from -25 to 55°C, ensuring consistent performance across various environmental conditions.
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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

100 ... 135 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. Versatile FeaturesEquipped with trip contact (NC), signal contact (NO), automatic- or manual reset selectable, trip-free mechanism, STOP function, and trip indication, the TF140DU-135 offers a range of versatile features for customizable protection.

Rated Operational Current (Ie)

135 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

IP20 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 25g 2 shocks 13 ms

Resistance to Vibrations

20 Cycles with Load 0.8 In: 5g 5 ... 150 ... 5 Hz

RoHS Status

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

Toxic Substances Control Act - TSCA

2CMT2023-006525

Object Classification Code

ETIM 4