Genuine ABB TA25 DU TF/TA Series (Bimetallic Thermal Overload Relay) - Industrial Automation Part

ABB TA25 DU Thermal Overload Relay – TF/TA Series Bimetallic Motor Protection

SKU: TA25 DU Category: ABB Tags: ABB, Motor Protection, TA25 DU, TF/TA Series, Thermal Overload Relay

Description

ABB TA25 DU Thermal Overload Relay – Motor Protection | TF/TA Series

When a thermal overload relay fails or is absent from a motor circuit, the consequences are immediate and costly: motors overheat, windings burn out, production lines halt, and unplanned downtime cascades into thousands of dollars in losses. In demanding industrial environments — from conveyor systems to pump stations — the ABB TA25 DU Thermal Overload Relay stands as the last line of defense between a running motor and catastrophic failure. Its absence is not an option.

The ABB TA25 DU belongs to ABB’s globally trusted TF/TA Series of bimetallic thermal overload relays, engineered specifically for direct-on-line and star-delta motor starters. Within the series, the TA25 DU occupies a critical mid-range position, offering robust overload protection for motors up to 25 A. ABB’s TF/TA Series is one of the most widely deployed motor protection relay families in global industrial automation, recognized for its reliability in IEC-compliant control panels across manufacturing, water treatment, HVAC, and process industries worldwide.

Technical Specifications

Model / SKU: TA25 DU
Brand: ABB
Series: TF/TA Series (Bimetallic Thermal Overload Relay)
Product Type: Thermal Overload Relay
Protection Class: Class 10A (IEC 60947-4-1)
Mounting: Direct mounting onto ABB A-line contactors (A9–A30)
Reset Mode: Manual / Automatic (field selectable)
Trip Class: Class 10A
Auxiliary Contacts: 1 NO + 1 NC
Ambient Temperature Compensation: Yes (bimetallic element)
Phase Loss Sensitivity: Yes
Standards: IEC 60947-4-1, CE, UL Listed
Weight: 4,460 g (as configured)

Note: Always verify exact current range and trip settings against the official ABB datasheet for your specific TA25 DU variant before installation.

Key Features & Benefits

Bimetallic Overload Protection: Reliable thermal tripping mechanism that accurately mirrors motor heating curves, preventing nuisance trips while ensuring genuine fault protection.
Phase Loss Sensitivity: Detects single-phasing conditions that would otherwise cause motor winding damage — a critical feature for three-phase motor circuits.
Ambient Temperature Compensation: Bimetallic design self-compensates for ambient temperature variations, maintaining accurate trip thresholds across installation environments.
Direct Contactor Mounting: Snap-on mounting to ABB A-line contactors eliminates wiring errors and reduces panel assembly time.
Manual/Auto Reset: Field-selectable reset mode allows engineers to choose between automatic restart (for remote/unmanned stations) or manual reset (for safety-critical applications).
IEC & UL Compliance: Dual certification ensures global project compatibility and simplifies panel certification processes.
Test/Stop Function: Integrated test button enables relay function verification without motor operation.

Industry & Equipment Applications

Manufacturing & Assembly Lines: Conveyor motor protection, robotic cell motor starters, CNC machine tool circuits
Water & Wastewater Treatment: Pump motor protection in lift stations, filtration systems, and aeration blowers
HVAC Systems: Fan motor and compressor protection in commercial and industrial climate control
Oil & Gas: Pump and compressor motor protection in upstream and midstream facilities
Food & Beverage Processing: Mixer, conveyor, and agitator motor protection in hygienic production environments
Mining & Minerals: Crusher, mill, and conveyor drive protection in harsh duty cycles
Building Automation: Elevator, escalator, and mechanical room motor protection panels

System Integration & Compatible Parts

The ABB TA25 DU is designed for seamless integration within ABB’s motor starter ecosystem. Compatible and commonly paired components include:

ABB Contactors: A9, A12, A16, A26, A30 (direct mounting)
ABB Manual Motor Starters: MS116, MS132 series (for combination starter assemblies)
ABB Circuit Breakers: S200 series (for upstream short-circuit protection)
ABB Soft Starters: PSR/PSE series (for reduced voltage starting applications)
Mounting Accessories: ABB TA mounting adapters for non-standard contactor combinations

When sourcing replacement or expansion parts, always cross-reference the full ABB catalog number to confirm compatibility with your existing panel design.

Our Quality Assurance Process

At Konmask.com, every ABB TA25 DU unit we supply undergoes a rigorous multi-stage quality verification process before shipment:

Source Verification: All units are sourced from authorized ABB distributors or verified surplus channels with full traceability documentation.
Visual & Physical Inspection: Each unit is inspected for label authenticity, housing integrity, terminal condition, and correct part marking.
Functional Check: Where applicable, relay trip mechanism and auxiliary contact continuity are verified.
Packaging Inspection: Original or protective packaging is confirmed before dispatch to prevent transit damage.
Documentation: Test reports and certificates of conformity are available upon request for project documentation requirements.

How to Order

Submit an Inquiry: Use the contact form on this page or email support@konmask.com with your required quantity and delivery timeline.
Receive a Quote: Our technical sales team will respond within 24 hours with pricing, availability, and lead time.
Order Confirmation: Confirm your order via email or phone. We accept T/T bank transfer, PayPal, and other B2B payment methods.
Shipment & Tracking: Orders are dispatched via DHL, FedEx, or UPS with full tracking. Express delivery available for urgent requirements.
After-Sales Support: Our engineering team is available post-delivery for installation guidance and technical questions.

Why Choose Konmask.com?

✅ Industrial Automation Specialists: We focus exclusively on industrial control components — PLC modules, DCS parts, drives, relays, and more.
✅ Global B2B Supply: Serving OEMs, system integrators, and MRO buyers in 50+ countries with reliable cross-border logistics.
✅ Technical Expertise: Our team includes qualified automation engineers who can assist with part selection, compatibility checks, and system design.
✅ Fast Response: Inquiry-to-quote in under 24 hours. Urgent orders handled with priority processing.
✅ Competitive Pricing: Direct sourcing relationships enable us to offer competitive pricing without compromising on authenticity.
✅ Traceability & Documentation: Full supply chain documentation available for regulated industries and project audits.

Frequently Asked Questions

Q: What is the current range of the ABB TA25 DU?
A: The TA25 DU is a variant within the TA25 range. The specific current setting range depends on the full catalog suffix. Please contact us with your motor nameplate data and we will confirm the correct variant for your application.

Q: Is the ABB TA25 DU compatible with non-ABB contactors?
A: The TA25 DU is optimized for direct mounting on ABB A-line contactors. Mounting on non-ABB contactors typically requires an adapter plate. Contact our team for compatibility guidance.

Q: Can I get a datasheet or certificate of conformity for the TA25 DU?
A: Yes. Official ABB datasheets and certificates of conformity are available upon request. Contact support@konmask.com with your order reference.

Q: What is the lead time for the ABB TA25 DU?
A: Lead time varies by stock availability. In-stock units typically ship within 1–3 business days. For larger quantities, please submit an inquiry for a confirmed lead time.

Q: Do you supply both new and refurbished units?
A: We primarily supply new, unused units. Tested surplus units may be available for select models. All units are clearly identified by condition in our quotation.

Q: What shipping methods are available for international orders?
A: We ship via DHL Express, FedEx International, and UPS Worldwide. Sea freight is available for bulk orders. All shipments include tracking and commercial invoice documentation.

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ABB TA25 DU Thermal Overload Relay – TF/TA Series Bimetallic Motor Protection