TF96-51

Name: TF96-51
Brand: ABB
SKU: TF96-51

The ABB TF96-51 thermal overload relay is an economic electromechanical protection device for the main circuit, providing reliable and fast protection for motors against overloads and phase failures. It features adjustable current setting, automatic or manual reset, and a trip-free mechanism for enhanced safety.

Product ModelTF96-51

Material Number1SAZ911201R1001

Product ID76416

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe TF96-51 offers 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 setting, enabling you to customize the protection level according to your specific motor requirements.
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3. Trip-Free MechanismThe trip-free mechanism ensures that the relay will not trip accidentally, providing consistent and reliable operation.
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4. Direct MountingThe TF96-51 can be directly mounted onto block contactors, simplifying installation and reducing setup time.
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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

69.9 mm

Product Net Height

106.9 mm

Product Net Depth / Length

106.3 mm

Product Net Weight

0.52 kg

Setting Range

40 ... 51 A

Rated Operational Voltage

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

5. Status IndicationThe relay includes a status indication feature, providing clear and reliable fault indication in case of short-circuit tripping, making it easier to diagnose and resolve issues.

Rated Operational Current (Ie)

51 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 6 ... 35 mmÂ² Flexible with Ferrule 1x 6 ... 50 mmÂ² Flexible with Insulated Ferrule 1/2x 6 ... 16 mmÂ² Flexible with Insulated Ferrule 1x 6 ... 50 mmÂ² Flexible 1/2x 6 ... 35 mmÂ² Flexible 1x 6 ... 50 mmÂ² Rigid 1/2x 6 ... 35 mmÂ² Rigid 1x 6 ... 50 mmÂ²

Tightening Torque

Auxiliary Circuit 1 ... 1.2 NÂ·m Main Circuit 6.0 ... 9.0 NÂ·m

Wire Stripping Length

Auxiliary Circuit 9 mm Main Circuit 20 mm

Recommended Screw Driver

Auxiliary Circuit Pozidriv 2 Main Circuit Hexagon 4

Mounting Position

1 ... 6

Power Loss

at Rated Operating Conditions per Pole 2.6 ... 4.3 W

Suitable For

AF80 AF96

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 8-1 AWG Flexible 2x 8-3 AWG Stranded 1x 8-1 AWG Stranded 2x 8-3 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 50 ... 80 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