TF65-28B

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

"ABB's TF65-28B thermal overload relay provides reliable and fast protection for motors against overloads and phase failures. Compact design with trip class 10 protection and temperature compensation from -25 to 60°C. Ideal for main circuit applications."

Product ModelTF65-28B

Material Number1SAZ821201R1001

Product ID76282

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable Protection\"The ABB TF65-28B thermal overload relay offers reliable protection for your motors, ensuring they operate safely and efficiently.\"
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2. Compact Design\"With its compact size of 55 mm width, the TF65-28B is perfect for space-constrained applications without compromising on performance.\"
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3. Fast Response\"The TF65-28B provides fast response times, quickly detecting and responding to overloads and phase failures to prevent damage.\"
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4. Temperature Compensation\"Temperature compensation from -25 to 60°C ensures the relay operates effectively across a wide range of temperatures, making it versatile for various environments.\"
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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

106.9 mm

Product Net Height

101.4 mm

Product Net Depth / Length

54.9 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. Trip Class 10\"With a trip class of 10, the TF65-28B offers high sensitivity and reliability, providing precise protection against overloads and phase failures.\"

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

Power Loss

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

Suitable For

AF40B AF52B AF65B

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 (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 25g 2 shocks 13 ms

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 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

Manufacturer ID

1SAZ821201R1001