ABB - Electrification TF65-33 - The TF65-33 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

TF65-33

Contact for Pricing

Overview

The ABB TF65-33 (SKU: TF65-33) is an economical electromechanical thermal overload relay designed for reliable main circuit protection of motors. It offers robust protection against overload and phase failure, adhering to Trip Class 10 as per IEC/EN 60947-4-1. This device ensures accurate operation across a wide ambient temperature range of -40°C to +70°C due to its built-in temperature compensation. Its phase loss sensitivity detects unbalanced loads, providing critical protection for motor windings. The trip-free mechanism prevents contact welding during fault conditions, enhancing safety and reliability. Users can select between automatic or manual reset modes for operational flexibility. The TF65-33 features dual-function auxiliary contacts: a normally closed (NC) trip contact for immediate circuit interruption and a normally open (NO) signal contact for remote monitoring or alarm systems. A dedicated STOP function allows for manual emergency shutdown without initiating a reset sequence, and a clear trip indication on the front panel provides immediate visual status feedback. Installation is versatile, allowing direct mounting onto ABB block contactors or via an optional single mounting kit for standard 35mm DIN rails. The main circuit terminals accommodate rigid conductors from 2.5 to 35mm² and flexible conductors up to 35mm², with stranded conductors supported up to AWG 2 per UL/CSA. Auxiliary circuit terminals accept rigid conductors from 0.75 to 4mm² and flexible conductors up to 4mm². The housing offers IP20 protection, while main circuit terminals are rated IP10. The device is suitable for operation at altitudes up to 2000m. Engineered for durability, the TF65-33 boasts mechanical robustness with 25g shock resistance (11ms) and 5g vibration tolerance (3-150Hz) per IEC 60068 standards. It effectively protects motors within a current range of 22A to 67A, making it ideal for applications such as pumps, conveyors, compressors, and HVAC systems.
  • Reliable motor protection against overload and phase failure
  • Trip Class 10 compliant with IEC/EN 60947-4-1
  • Phase loss sensitive for unbalanced load detection
  • Selectable automatic or manual reset modes
  • Direct mounting to ABB contactors or 35mm DIN rail

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.
Product Name
Thermal Overload Relay
Size
82x110x108mm
Special Features
The TF65-33 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)
3.228 IN x 4.843 IN x 4.764 IN
Package Dimensions (L x W x H)
8.1991 cm x 12.3012 cm x 12.1006 cm
Package Weight (Imperial)
1.010 L
Package Weight (Metric)
0.458 kg
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Frequently Asked Questions about ABB - Electrification

What certifications and standards do ABB - Electrification products comply with?

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.

What industries and applications are ABB - Electrification products used for?

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.

What technical support does ABB - Electrification offer?

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.

What are the key features of ABB - Electrification products?

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.

What communication protocols do ABB - Electrification products support?

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.

What environmental ratings do ABB - Electrification products have?

ABB - Electrification products feature robust environmental ratings across multiple standards, including IP54 to IP66 protection levels and NEMA Type 1 to Type 4X enclosures. These ratings ensure equipment can withstand challenging industrial environments, providing dust-tight, water-resistant, and corrosion-resistant protection for indoor and outdoor applications.

What accessories are available for ABB - Electrification products?

ABB - Electrification offers a comprehensive range of accessories across multiple product lines, including auxiliary contact blocks, signaling contacts, shunt trips, undervoltage releases, electronic timers, interlocks, interface relays, mounting pieces, terminal blocks, and connection accessories. These accessories are designed to enhance functionality, improve connectivity, and provide additional protection for industrial control systems, with many accessories being compatible with SMISSLINE TP plug-in distribution systems and Unifix AD busbar systems.

How are ABB - Electrification products typically installed?

ABB - Electrification products are installed through a professional, systematic process that includes precise equipment verification, secure electrical connections, and comprehensive testing. Installation typically involves verifying foundation requirements, assembling equipment, connecting busbars and control cables, establishing earthing systems, and conducting thorough pre-commissioning and commissioning tests to ensure optimal performance, reliability, and safety.

What is ABB - Electrification's warranty policy?

ABB - Electrification offers a standard 1-year factory warranty for most electrification products, with options to extend warranty coverage up to 5 years for specific product lines like low voltage circuit breakers. Extended warranty requires online registration through ABB's Extended Warranty Tool, which verifies the product application and provides additional coverage for manufacturing defects and factory-mounted accessories.