This product page details the ABB TA25 thermal overload relay, an essential motor protection device designed to safeguard three-phase motors from overload conditions. With an adjustable current range of 10-14A and a full load current of 14A, this 3-pole relay features both NO and NC auxiliary contacts with a 2.2W contact rating, providing comprehensive motor protection in industrial and commercial applications.
Overview of the Thermal Overload Relay
The ABB TA25 thermal overload relay serves as a critical component in motor control circuits. Because it monitors motor current and responds to overload conditions, it prevents motor damage from excessive current draw, ensuring operational reliability and extending equipment lifespan in various industrial applications.
Key Features and Technical Specifications
This motor protection device is engineered for precision and reliability. Therefore, here are its essential characteristics:
- Current Range: Adjustable 10-14A for precise motor protection
- Full Load Current: 14A maximum continuous current
- Poles: 3-pole configuration for three-phase motor protection
- Auxiliary Contacts: 1 NO + 1 NC for control circuit signaling
- Contact Rating: 2.2W for reliable control circuit operation
- Tripping Class: Class 10 for standard motor protection
- Mounting: Designed for compatibility with ABB contactors
- Standards: Compliant with IEC/EN 60947-4-1 standards
Typical Applications and Use Cases
The specific current rating of this thermal overload relay makes it ideal for various motor protection applications. For example, it is commonly used for:
- Three-phase motor protection up to 7.5kW at 400V
- Industrial pump and fan motor control
- Conveyor system motor protection
- HVAC system compressor and fan motors
- Machine tool and manufacturing equipment motors
- Packaging machinery motor protection
- Agricultural and irrigation pump motors
For complete motor control solutions, explore our range of compatible ABB contactors and motor starters designed to work with TA series overload relays.
Why Choose the ABB TA25 Thermal Overload Relay?
Selecting the ABB TA25 thermal overload relay provides significant advantages for motor protection applications. Firstly, the precise 10-14A adjustable range allows exact matching to motor nameplate current, providing optimal protection without nuisance tripping. Secondly, the combination of NO and NC auxiliary contacts offers maximum flexibility for control circuit design, enabling both alarm signaling and interlocking functions. Consequently, you achieve comprehensive motor protection with configuration flexibility for various control scenarios.
Installation and Setting Guidelines
Proper installation and calibration of this thermal overload relay are crucial for effective motor protection. Mount the relay directly to a compatible ABB contactor, ensuring secure mechanical connection. Set the current adjustment dial to match the motor’s exact full-load current as specified on the motor nameplate, ensuring it falls within the 10-14A range. Furthermore, connect the auxiliary contacts to your control circuit based on your specific requirements—using the NC contact for emergency stop circuits or the NO contact for alarm indication.
For detailed technical specifications and application guidelines, consult the comprehensive ABB TA thermal overload relay documentation.
Protect Your Motor Investments Today
In summary, the ABB TA25 thermal overload relay with its 10-14A adjustable range and versatile contact configuration represents a reliable solution for three-phase motor protection. Finally, by incorporating this precision protection device into your motor control systems, you ensure equipment safety, reduce downtime, and extend motor lifespan in your industrial and commercial applications.
