ABB TA25 DU 0,25 Thermal Overload Relay

Description

The ABB TA25 DU 0,25 is a thermal overload relay designed for reliable and precise motor protection. It operates with a setting range of 0.25 to 0.4 A and is intended for direct mounting on ABB A-line contactors. This device safeguards motors against thermal overload and phase failures, ensuring operational safety and extending motor life. Key features include temperature compensation, a trip indicator, and selectable manual or automatic reset functions.

Specifications

• Manufacturer: ABB
• Type: TA25 DU 0,25
• Order Code: 1SAZ211201R1009
• Setting Range: 0.25 - 0.4 A
• Trip Class: 10A
• Auxiliary Contacts: 1 NO + 1 NC
• Mounting: Direct to contactor
• Rated Insulation Voltage (Ui): 690V

Label Info

• Model: TA25 DU
• EAN: 4013614216480
• Standards: IEC/EN 60947-4-1, IEC/EN 60947-5-1

Application

This thermal overload relay is ideal for use in various industrial applications, including motor control centers, conveyor systems, pumps, and fans. It provides essential protection for three-phase AC motors, preventing damage from overcurrent conditions.

Country of Origin

Made in Germany.

CO2 Impact

By purchasing this reused component, you contribute to a circular economy and avoid the emission of approximately 6.0 kg of CO2, which is the environmental equivalent of driving a car for 30 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

The blue button serves as a STOP function for the motor circuit. It is separate from the reset function, which is the smaller button located within the current adjustment dial.

Yes, while designed for three-phase applications, it includes built-in phase-loss sensitivity. This feature also allows it to protect single-phase motors, though specific wiring instructions from the manufacturer's datasheet should be followed.

Trip Class 10A indicates that the relay will trip within 10 seconds when the motor is subjected to a locked-rotor condition (typically 6 times the rated current). This is a standard trip time suitable for most general-purpose motor applications.

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Last Update: Friday, March 13, 2026