ABB TA2X2.2-32 Thermal Overload Relay with 2.2-32A Rated Current Precise Thermal and Phase Loss Protection for Small and Medium Power Motors

TA2X2.2-32 ABB TThermal overload relay Precise thermal protection provided medium small power motors

Product Overview

ABB TA2X2.2-32 is A high-performance thermal overload relay in the ABB TA2X series, specifically designed to protect small and medium-sized three-phase asynchronous motors (rated current 2.2-32 A) from overload and phase loss faults. This model is equipped with one normally open (NO) auxiliary contact and supports automatic reset function. It can be directly assembled with ABB A series contactors to form an integrated motor starting and protection unit. With high reliability, compact structure and international certification, it is widely used in industrial control cabinets, building automation systems and OEM equipment.

Key features

✅ precise overload protection

Adopting the principle of bimetallic strip thermal sensing, the tripping characteristic complies with the IEC/EN 60947-4-1 standard (Class 10A), ensuring that the power supply of the motor is cut off in time when overloaded to prevent winding damage.

✅ phase loss protection function

It is equipped with a built-in three-phase current imbalance detection mechanism. Once any phase is disconnected, it will trigger a trip to prevent the motor from overheating and burning out due to single-phase operation.

✅ space-saving & flexible installation

The width is only 45mm
Supports 35mm DIN rail mounting
It can be directly assembled on the right side of ABB A series contactors (such as A30, A40), and the main circuit is automatically connected without the need for additional wiring
✅ security compliance certification

It has passed global mainstream certifications such as CE, UL, CSA, CCC, and TUV, complies with RoHS and REACH environmental protection requirements, and meets international project access standards.

✅ is easy to operate and maintain

The transparent window allows for a direct view of the tripping status. The reset button is easy to operate. It resets automatically by default. A manual reset module can also be optionally equipped to enhance operational safety.

Basic parameters
Model TA2X2.2-32
Series ABB TA2X thermal overload relays
Rated operating current (Ie) 2.2-32 A (AC- 3,400 V)
Rated insulation voltage (Ui) : 690 V AC
Rated operating voltage (Ue) 230/400/690 V AC (50/60 Hz)
Auxiliary contact configuration 1 NO (Always open)
The deduction level is Class 10A
Reset mode: Automatic reset (default), manual reset module (such as HHRM -11)
Protection grade IP20 (front)
Installation method: 35mm DIN rail or assembled on ABB A series contactors
Operating temperature range: -25°C to +55°C
Storage temperature: -40°C to +85°C
Altitude ≤ 2000 m (no volume reduction)
Dimensions (width × height × depth) : 45mm × 90mm × 78mm
Weight ≈ 0.17 kg

Typical application scenarios
Industrial automation
It is used for the starting, stopping and protection of medium-voltage motors, such as water pumps, fans, compressors and other equipment.
Power transmission and distribution
Load switching and protection in scenarios such as medium-voltage switch cabinets and substations.
Energy and infrastructure
Auxiliary control of photovoltaic inverters, pumping stations of water treatment plants, and backup power switching systems.
OEM equipment integration
As a standard component embedded in the OEM control cabinet, it enhances the reliability of the entire machine.

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