TF65-28

Name: TF65-28
Brand: ABB
SKU: TF65-28

The ABB TF65-28 thermal overload relay provides efficient motor protection with adjustable current settings, trip-free mechanism, and direct mounting onto block contactors. Ideal for reliable and fast protection against overload and phase failure.

Product ModelTF65-28

Material Number1SAZ811201R1001

Product ID76413

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable Motor ProtectionThe ABB TF65-28 thermal overload relay is designed to provide reliable protection for motors against overload and phase failure, ensuring continuous operation and minimizing downtime.
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2. Adjustable Current SettingsWith adjustable current settings, the TF65-28 allows for precise customization to suit various motor applications, ensuring optimal protection and performance.
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3. Trip-Free MechanismThe trip-free mechanism ensures that the relay will not trip under normal operating conditions, providing a high level of reliability and reducing false tripping.
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4. Direct Mounting onto Block ContactorsThe relay can be directly mounted onto block contactors, simplifying installation and reducing the need for additional components, making it a convenient solution for many applications.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Product Net Width

54.9 mm

Product Net Height

101.4 mm

Product Net Depth / Length

106.9 mm

Product Net Weight

0.372 kg

Setting Range

22 ... 28 A

Rated Operational Voltage

Auxiliary Circuit 600 V AC/DC Main Circuit 690 V AC Main Circuit 440 V DC

5. Automatic or Manual Reset SelectableThe TF65-28 offers both automatic and manual reset options, allowing users to choose the most suitable method based on their specific requirements and operational needs.

Rated Operational Current (Ie)

28 A

Rated Frequency (f)

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

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 6 A Auxiliary Circuit NO 4 A

Rated Operational Current AC-15 (Ie)

(120 V) NC 3 A (120 V) NO 0.5 A (240 V) NC 3 A (240 V) NO 0.5 A (400 V) NC 0.75 A (400 V) NO 0.5 A (500 V) NC 0.75 A (500 V) NO 0.5 A

Rated Operational Current DC-13 (Ie)

(125 V) NC 0.55 A (125 V) NO 0.55 A (24 V) NC 1.25 A (24 V) NO 1.25 A (250 V) NC 0.27 A (250 V) NO 0.27 A (500 V) NC 0.15 A (500 V) NO 0.15 A (60 V) NC 0.55 A (60 V) NO 0.55 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 with Insulated Ferrule 1x 0.75 ... 2.5 mmÂ² Flexible with Insulated Ferrule 2x 0.75 ... 1.5 mmÂ² Flexible 1/2x 0.75 ... 1 mmÂ² Flexible 1/2x 1 ... 2.5 mmÂ² Rigid 1/2x 0.75 ... 4 mmÂ²

Connecting Capacity Main Circuit

Flexible with Ferrule 1/2x 2.5 ... 10 mmÂ² Flexible with Ferrule 1x 2.5 ... 35 mmÂ² Flexible with Insulated Ferrule 1x 2.5 ... 35 mmÂ² Flexible with Insulated Ferrule 1/2x 2.5 ... 10 mmÂ² Flexible 1/2x 2.5 ... 16 mmÂ² Flexible 1x 2.5 ... 35 mmÂ² Rigid 1/2x 2.5 ... 16 mmÂ² Rigid 1x 2.5 ... 35 mmÂ²

Tightening Torque

Auxiliary Circuit 1 ... 1.2 NÂ·m Main Circuit 4.0 ... 4.5 NÂ·m

Wire Stripping Length

Auxiliary Circuit 9 mm Main Circuit 17 mm

Recommended Screw Driver

Auxiliary Circuit Pozidriv 2 Main Circuit Pozidriv 2

Mounting Position

1 ... 6

Power Loss

at Rated Operating Conditions per Pole 1.9 ... 3.1 W

Suitable For

AF40 AF52 AF65

Standards

IEC/EN 60947-1 IEC/EN 60947-4-1 IEC/EN 60947-5-1 UL 60947-1 UL 60947-4-1 IEC 60335-2-40 A2L

Maximum Operating Voltage UL/CSA

Main Circuit 600 V AC

Contact Rating UL/CSA

(NC:) B600 (NC:) Q600 (NO:) Q600 (NO:) D300

Connecting Capacity Main Circuit UL/CSA

Flexible 1x 12-2 AWG Flexible 2x 12-6 AWG Stranded 1x 12-2 AWG Stranded 2x 12-6 AWG

Connecting Capacity Auxiliary Circuit UL/CSA

Flexible 1/2x 18-12 AWG Stranded 1/2x 18-12 AWG

Tightening Torque UL/CSA

Auxiliary Circuit 9 ... 11 inÂ·lb Main Circuit 35 ... 40 inÂ·lb

Ambient Air Temperature

Operation -40 ... +70 Â°C Operation Compensated -40 ... +70 Â°C Storage -50 ... +80 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 25g

Resistance to Vibrations

5g 3 ... 150 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