ABB - Electrification TF96-68 - The TF96-68 thermal overload relay is an economic electromechanical protection device for the main circuit. It offers reliable and fast protection for motors in the event of overload or phase failure. The device has trip class 10. Further features are the temperature compensation, trip contact (NC), signal contact (NO), automatic- or manual reset selectable, trip-free mechanism, STOP function and a trip indication. The overload relays are connected directly to the block contactors. Single mounting kits are available as accessory.
ABB - Electrification

TF96-68

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Overview

The ABB TF96-68 thermal overload relay (SKU: TF96-68) is an electromechanical protection device designed for direct connection to ABB AF80 and AF96 block contactors. Rated for motor currents between 57.0A and 68.0A, this relay provides reliable overload and phase failure protection with a Trip Class 10 rating, ensuring rapid response to fault conditions. The device features three-pole bimetal tripping elements that directly and indirectly heat in response to motor current, bending to release the relay and change contact positions (95-96 / 97-98) during overloads. Key features include temperature compensation for consistent performance across varying ambient temperatures, maintaining accuracy in diverse environments. The TF96-68 offers selectable automatic or manual reset modes, a trip-free mechanism to prevent reset interference during fault conditions, and a dedicated STOP function for immediate control. A trip indication on the front provides clear visibility of fault events. The relay is phase-loss sensitive per IEC/EN 60947-4-1 and suitable for both three- and single-phase applications. The TF96-68 includes a trip contact (NC) that opens on overload for shutdown signaling and a signal contact (NO) that closes on trip for remote indication. Accessories such as single mounting kits (Order code: 961SAZ901901R1001), reset push buttons (Order code: 200KPR-101L1SFA616162R1014), and remote reset/stop coils (24-30V to 220-240V AC/DC) are available for flexible installation and integration. Manufactured in the US, the TF96-68 is ATEX-certified (valid for products produced from week 26, 2015) and ideal for protecting motors in industrial applications where reliable overload and phase failure protection is critical.
  • Trip Class 10 overload protection for motors (57.0A–68.0A range)
  • Phase-loss sensitive per IEC/EN 60947-4-1, suitable for 3-phase and single-phase applications
  • Selectable automatic or manual reset with trip-free mechanism
  • Temperature-compensated bimetal tripping elements for consistent performance
  • Trip contact (NC) and signal contact (NO) for shutdown and remote indication

Specifications

Ambient Air Temperature
Operation -40 ... +70 °C / Operation Compensated -40 ... +70 °C / Storage -50 ... +80 °C
Application
Mainly used for controlling 3-phase motors and generally for controlling power circuits up to 690 V AC and 220 V DC. The contactors can also be used for many other applications such as bypass, capacitor switching, lighting, DC power circuits.
Connection Type
Direct connection to block contactors
Current Rating
57.0-68.0 A
Mounting Type
Single mounting kit accessory
Poles
3
Product Name
Thermal Overload Relay
Series
TF96
Size
82x110x108mm
Special Features
The TF96-68 thermal overload relay is an economic electromechanical protection device for the main circuit. It offers reliable and fast protection for motors in the event of overload or phase failure. The device has trip class 10. Further features are the temperature compensation, trip contact (NC), signal contact (NO), automatic- or manual reset selectable, trip-free mechanism, STOP function and a trip indication. The overload relays are connected directly to the block contactors. Single mounting kits are available as accessory.
Standard
RoHs, CSA, cUL, CE, GOST
Trip Class
class 10
Type
Contactors
Voltage Rating
Auxiliary Circuit 600 V AC / DC / Main Circuit 690/440 V AC/V DC
Package Dimensions (L x W x H)
3.819 IN x 3.819 IN x 4.764 IN
Package Dimensions (L x W x H)
9.7003 cm x 9.7003 cm x 12.1006 cm
Package Weight (Imperial)
1.367 L
Package Weight (Metric)
0.620 kg
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Frequently Asked Questions about ABB - Electrification

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ABB - Electrification products comply with a comprehensive range of international certifications and standards, including UL (United States), CSA (Canada), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia & New Zealand). Our products meet critical international standards such as IEC 60947 series for low-voltage switchgear, functional safety standards EN 61800-5-2 and ISO 13849-1, and marine classification standards from Bureau Veritas, DNV, and Lloyd's Register of Shipping.

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ABB - Electrification products are engineered for critical applications across multiple industries, including Energy, Oil & Gas, Manufacturing, Power Generation, HVAC, Marine, Food & Beverage, Mining, Pulp & Paper, Water Treatment, and Automotive. Their solutions cover essential electrical infrastructure needs such as switchgear, power distribution systems, circuit protection, digital control technologies, and drive systems designed for high-reliability environments with a strong focus on sustainability, efficiency, and safety.

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ABB - Electrification offers comprehensive technical support through multiple channels, including a dedicated technical support hotline at 888-385-1221 (Option 1), available 7:00 a.m. - 5:00 p.m. CST, Monday-Friday. Their support services encompass 24/7/365 emergency services, on-site support, remote monitoring and diagnostics, installation and commissioning, equipment assessments, repair coordination, and multi-vendor technical assistance. Customers can also access resources like personnel safety training, disaster recovery support, and service agreements tailored to their specific electrification needs.

What are the main product lines offered by ABB - Electrification?

ABB - Electrification offers a comprehensive range of electrical distribution and protection products, including circuit monitoring systems, panelboards, switchgear, motor control centers, circuit breakers, softstarters, and power distribution solutions. Key product lines span low and medium voltage applications across utilities, commercial, industrial, healthcare, and manufacturing sectors, with specialized offerings like the ReliaGear® panelboards, SMISSLINE TP bus systems, and Ekip UP protection and metering relays.

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ABB - Electrification products feature advanced integrated design elements that enhance industrial performance and reliability. Key features include harmonics and EMC design, integrated DC choke, removable terminals for fast installation, USB ports for troubleshooting, and integrated Safe Torque Off (STO) functionality. The products deliver superior motor control capabilities, support both induction and permanent magnet motors, and offer robust operational features like side-by-side mounting without derating and operation at temperatures up to 45°C. Additionally, ABB's Electrification solutions emphasize digital innovation, with technologies like Novolink enabling predictive maintenance, enhanced analytics, and seamless system integration.

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ABB - Electrification products support a comprehensive range of industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, DeviceNet, and IEC 61850. These protocols enable flexible connectivity across multiple industrial automation platforms, with support for various network topologies and high-speed data transmission up to 100 Mbps.