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ABB MS325-20 Motor Protection Circuit Breaker

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ABB MS325-20

by ABB

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OverviewThe ABB MS325-20 motor protection circuit breaker is an essential device for securing electric motors across various industrial and commercial settings. This compact unit delivers comprehensive defense against common electrical issues like overloads, short circuits, and damaging phase absences. Its sophisticated engineering includes adjustable thermal and magnetic trip configurations, enabling precise customization to suit diverse motor applications’ specific protective needs. By ensuring optimal motor functionality and preventing unexpected downtimes, the MS325-20 significantly boosts system dependability and prolongs the lifespan of your valuable machinery. This ABB circuit breaker integrates smoothly into existing control panels, offering a ideal combination of strong protection, intuitive features, and compliance with global safety protocols, making it a reliable option for professionals seeking uncompromising motor regulation and security.Key Features Model: ABB MS325-20 Integrated Safeguarding: Combines thermal and magnetic trip functionalities for thorough motor defense against overloads and short circuits. Configurable Overload Shield: Provides users with the capability to fine-tune thermal trip parameters, optimizing protection for particular motor characteristics and operational demands. Instantaneous Short-Circuit Defense: Guarantees immediate disconnection during short-circuit occurrences, effectively preventing expensive damage to motors and related electrical infrastructure. Phase Loss Detection: Advanced sensing abilities identify and react to critical phase failures, crucial for averting motor overheating and premature deterioration. Compact and Efficient Footprint: Maximizes panel space utilization, simplifying integration and reducing overall installation size. Versatile Reset Choices: Offers both manual and automatic reset options, providing operational convenience and adaptability to various control approaches. Technical Specifications Rated Current: 20A, suitable for a broad spectrum of motor applications. Voltage Rating: Operates up to 690V AC, ensuring compatibility with higher voltage systems. Trip Class: Class 10, indicating a rapid trip response time for enhanced motor security. Breaking Capacity: An impressive 100kA at 400V, guaranteeing effective interruption of high fault currents. Operating Temperature: Designed for dependable performance within a wide temperature range of -25°C to +55°C. Mounting Type: Adaptable mounting options including DIN rail or direct panel mounting for straightforward installation. Compliance: Fully adheres to the stringent IEC 60947-4-1 standards, ensuring safety and functionality. Applications Industrial Motor Control Panels: Provides essential safeguarding and control for motors powering critical industrial processes. Pumps and Fans: Ideal for protecting equipment in water treatment, ventilation, and other fluid handling systems. HVAC Systems: Ensures consistent operation of compressors, blowers, and other elements in heating, ventilation, and air conditioning units. Conveyor Systems: Protects motors responsible for material transport, minimizing pauses in logistics and manufacturing. Machinery and Automation: A core component in a wide array of industrial machinery, contributing to operational safety and efficiency. Why ChooseThe ABB MS325-20 stands out as a leading selection for motor protection due to its unmatched blend of precision, longevity, and adherence to standards. Its adjustable configurations provide a level of command that generic protectors cannot offer, allowing you to perfectly align the breaker's response with your motor's unique needs. The substantial breaking capacity and compliance with IEC standards highlight its reliability and safety, offering peace of mind in even the most challenging operational scenarios. Beyond its technical capabilities, the compact form factor of the ABB MS325-20 ensures efficient use of space within control panels.Order NowSecure your industrial motors with the advanced protection of the ABB MS325-20 Motor Protection Circuit Breaker. Contact us today to place your order or to learn more about how this essential component can enhance the reliability and efficiency of your operations.FAQWhat types of faults does the ABB MS325-20 protect against?The ABB MS325-20 offers comprehensive protection against overloads, short circuits, and phase failures, safeguarding your motors from common electrical disturbances.Can the trip settings be adjusted for specific motor requirements?Yes, this circuit breaker features adjustable thermal and magnetic trip settings, allowing for precise customization to match the specific protective needs of various motor applications.Is the ABB MS325-20 suitable for high voltage systems?Absolutely, with a voltage rating of up to 690V AC, it is designed to be compatible with higher voltage systems found in industrial environments.What are the mounting options for the ABB MS325-20?It offers versatile mounting options including DIN rail or direct panel mounting, providing flexibility for easy installation within your control panels.Does this product comply with international safety standards?Yes, the ABB MS325-20 fully adheres to the rigorous IEC 60947-4-1 standards, ensuring both safety and optimal performance.

🇺🇸 Ships from our Florida warehouse
1-Year PALM Parts Warranty
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$928.00
23 in stock

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PRODUCT DETAILS

ABB MS325-20

Overview

This is a genuine ABB component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine ABB catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader ABB automation ecosystem

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your ABB equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same ABB catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation ABB platform with documented conversion notes

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Rated Current: 20A, suitable for a broad spectrum of motor applications.
  • Voltage Rating: Operates up to 690V AC, ensuring compatibility with higher voltage systems.
  • Trip Class: Class 10, indicating a rapid trip response time for enhanced motor security.
  • Breaking Capacity: An impressive 100kA at 400V, guaranteeing effective interruption of high fault currents.
  • Operating Temperature: Designed for dependable performance within a wide temperature range of -25°C to +55°C.
  • Mounting Type: Adaptable mounting options including DIN rail or direct panel mounting for straightforward installation.
  • Compliance: Fully adheres to the stringent IEC 60947-4-1 standards, ensuring safety and functionality.

Applications

  • Industrial Motor Control Panels: Provides essential safeguarding and control for motors powering critical industrial processes.
  • Pumps and Fans: Ideal for protecting equipment in water treatment, ventilation, and other fluid handling systems.
  • HVAC Systems: Ensures consistent operation of compressors, blowers, and other elements in heating, ventilation, and air conditioning units.
  • Conveyor Systems: Protects motors responsible for material transport, minimizing pauses in logistics and manufacturing.
  • Machinery and Automation: A core component in a wide array of industrial machinery, contributing to operational safety and efficiency.

Why Choose the MS325-20?

The ABB MS325-20 stands out as a leading selection for motor protection due to its unmatched blend of precision, longevity, and adherence to standards. Its adjustable configurations provide a level of command that generic protectors cannot offer, allowing you to perfectly align the breaker's response with your motor's unique needs. The substantial breaking capacity and compliance with IEC standards highlight its reliability and safety, offering peace of mind in even the most challenging operational scenarios. Beyond its technical capabilities, the compact form factor of the ABB MS325-20 ensures efficient use of space within control panels.

Availability & Shipping

  • In stock: MS325-20 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every MS325-20 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — ABB

The ABB MS325-20 offers comprehensive protection against overloads, short circuits, and phase failures, safeguarding your motors from common electrical disturbances.

Machine down? We ship parts the same day.

New, surplus, and refurbished ABB inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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