ABB TA25DU‑25M Thermal Overload Relay

Correct Model: ABB TA25DU‑25M

Global ID: 1SAZ211201R2051

หมายเลขคำสั่งซื้อ: 10135416

ประเภทสินค้า: Economical electromechanical thermal overload relay

Model Designation Breakdown:

2. พารามิเตอร์ทางเทคนิคที่สำคัญ

3. ฟังก์ชั่นหลัก & คุณสมบัติ
4. Reliable motor protection: Fast and reliable protection against overload and phase failure, compliant with IEC 60947‑4‑1
5. Temperature compensation: Maintains stable protection characteristics over a wide ambient temperature range to prevent unwanted tripping
6. Test function: Equipped with TEST button for on-site function verification
7. Free tripping mechanism: Ensures reliable tripping under all conditions, independent of reset operation
8. Trip indication: Clearly shows if relay has tripped due to overload
9. Economical & practical: Part of ABB’s economical thermal overload relay series with high cost‑performance
10. การใช้งาน & Compatible Contactors

4.1 การใช้งานทั่วไป

Overload and phase failure protection for three‑phase asynchronous motors, especially 7.5 kW–11 kW (380วี) มอเตอร์

Motor protection for industrial automation lines, แฟน ๆ, ปั๊ม, คอมเพรสเซอร์, ฯลฯ.

Forms a complete motor starting and protection unit with AX series contactors

4.2 Compatible Contactors

ที่แนะนำ: AX25‑30‑10/01, AX32‑30‑10/01 (25–32A rated current)

Compatible: Full AX09–AX40 series, AL9–AL40 series contactors

การติดตั้ง: Direct clip‑on mounting (กะทัดรัด) or separate base mounting

5. Cross‑Brand Alternatives

6. TA25DU Series Full Model Matrix

TA25DU series covers a setting current range of 0.1A–25A:

7. การติดตั้ง & หมายเหตุการเดินสายไฟ
8. Mounting orientation: Vertical installation recommended for good heat dissipation
9. Wiring specification: Main circuit conductor cross‑section 2×1.5–6mm², M4 screws, torque 1.44–1.92Nm
10. ผู้ติดต่อเสริม: 95 (เอ็นซี), 96 (เลขที่) for control circuit or signal indication
11. Reset selection: คู่มือ (Man) or automatic (Aut) reset via switch

The ABB TA25DU‑25M is a reliable and economical thermal overload relay, mainly used for three‑phase motor protection in the 18–25A setting range. It is especially suitable for use with AX series contactors and widely applied in various industrial automation equipment. Its comprehensive protection, temperature compensation, and convenient mounting make it an ideal choice for small and medium‑sized motor protection.

Complete Application Guide for ABB TA25DU‑25M Thermal Overload Relay

1. Core Application Positioning

The TA25DU‑25M is an economical thermal overload relay with a setting range of 18.0–25.0A and trip class 10A.

It mainly provides overload, phase failure and phase unbalance protection for three‑phase asynchronous motors,

especially suitable for motors from 7.5 กิโลวัตต์ถึง 22 กิโลวัตต์ (380โวลต์/400โวลต์).

Combined with AX series contactors, it forms a complete motor control and protection unit.

2. Applications by Industry

ระบบอัตโนมัติทางอุตสาหกรรม & Manufacturing

1. Production line drive systems

สายพานลำเลียง, sorting equipment: protection against overload from material buildup or jamming

เครื่องมือกล, hydraulic pumps: ensures machining accuracy and equipment safety

Packaging and printing machinery: avoids downtime from load fluctuations

2. เครื่องจักรทั่วไป

คอมเพรสเซอร์ (อากาศ, refrigeration): protects against overpressure and overheating

แฟนๆ (industrial exhaust, cooling tower): suitable for long‑time continuous operation

ปั๊ม (circulation, cooling, booster): protects against pipe blockage or insufficient water supply

3. Material handling equipment

รถเครน, รอก: prevents safety risks from overload

มิกเซอร์, เครื่องกวน: adapts to highly variable load conditions

🏢 Building & โครงสร้างพื้นฐาน

1. ระบบอัตโนมัติในอาคาร

HVAC fans, หอทำความเย็น, chilled water pumps

Fire protection systems: smoke exhaust fans, spray pumps

Elevators and escalators: ensures passenger safety

2. Construction equipment

Small construction machinery: concrete mixers, mortar pumps

Temporary power systems on construction sites

🏗️ Energy & สาธารณูปโภค

1. การบำบัดน้ำ

Aeration fans, sludge return pumps, lift pumps in wastewater treatment plants

Water supply pumps and booster pumps in waterworks

2. Power auxiliary systems

Cooling systems in substations and power plants

Auxiliary motors for PV inverters and wind turbines

🌾 Agriculture & การแปรรูปอาหาร

1. Agricultural irrigation

Large irrigation pumps: adapts to varying water sources and leakage conditions

Greenhouse ventilation and cooling systems

2. Food processing machinery

มิกเซอร์, slicers, เครื่องบรรจุภัณฑ์: suitable for humid and dusty environments

Compressors and fans in cold storage and refrigeration systems

3. Applications by Operating Conditions

🔧 Harsh Environment Applications

1. Wide temperature variation: พร้อมการชดเชยอุณหภูมิ (-25°ซ ถึง +55°ซ), suitable for outdoor and workshop environments
2. การสตาร์ทบ่อยๆ & หยุด: Trip class 10A ideal for high‑start‑frequency motors
3. Phase failure risk: Built‑in phase failure protection for unstable power supplies

🛡️ Safety‑Critical Applications

1. Public areas: ลิฟต์, บันไดเลื่อน, ระบบปรับอากาศ
2. 24‑hour continuous systems: สายการผลิต, data center cooling

💡 Economical Applications

1. SME equipment: High cost‑performance for budget‑conscious users
2. Equipment retrofitting: Direct replacement for older relays, compatible with existing AX/AL contactors
3. Typical Motor Ratings & Application Examples

5. Key Advantages Summary
6. การป้องกันเต็มรูปแบบ: โอเวอร์โหลด, ความล้มเหลวของเฟส, phase unbalance – IEC 60947‑4‑1 compliant
7. การปรับตัวด้านสิ่งแวดล้อม: Temperature compensation avoids nuisance tripping
8. ใช้งานง่าย: Manual/automatic reset + TEST button
9. Flexible mounting: Direct on contactor or separate base
10. Economical & reliable: Cost‑effective for mass deployment on small and medium motors

บทสรุป

With its 18–25A setting range and 10A trip characteristics, the ABB TA25DU‑25M is widely used in industrial automation, building services, พลังงาน, agriculture and other fields.

It is especially suitable for three‑phase motors from 7.5 กิโลวัตต์ถึง 22 กิโลวัตต์.

Its complete protection, environmental stability and economy make it an excellent choice for small and medium motor protection, especially when combined with AX series contactors to build efficient and reliable motor control and protection systems.