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ABB OT125F4N2 Air Circuit Breaker

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ABB OT125F4N2 | 1SCA105051R1001

by ABB

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OverviewThe ABB OT125F4N2 (1SCA105051R1001) is a high-performance air circuit breaker meticulously engineered to provide premier overload and short-circuit protection across a wide array of industrial and commercial applications. This exceptionally reliable breaker is designed for critical electrical systems, offering significant breaking capacity and precise safeguarding for equipment, minimizing interruptions, and ensuring continuous, safe operation of your electrical infrastructure. Its adaptable design makes it an ideal choice for integration into power distribution boards, control panels, and various other essential electrical configurations where consistent protection is crucial. With the OT125F4N2, you gain confidence, knowing your electrical systems are secured by ABB's renowned quality and innovation.Key Features Model: ABB OT125F4N2 (1SCA105051R1001) Function: Advanced air circuit breaker for comprehensive overload and short-circuit protection. Rated Current: 125A, suitable for a wide selection of medium-power applications. Breaking Capacity: An impressive 36kA at 415V AC, ensuring efficient fault interruption. Compact Design: Optimized dimensions for seamless integration into existing control panels and power distribution boards, conserving valuable space. Thermal-Magnetic Protection: Dual-action protection mechanism guards against both sustained overloads and sudden short circuits, improving safety and system longevity. Intuitive Interface: User-friendly controls simplify setup and operation, allowing for rapid deployment and maintenance. Technical Specifications Rated Voltage: 415V AC Rated Current: 125A Breaking Capacity: 36kA Frequency: 50/60 Hz Operating Temperature: -25°C to 70°C Dimensions (L x W x H): 185 mm x 145 mm x 115 mm Weight: 2.8 kg Protection Class: IP20 Applications Power Distribution Systems: Essential for dependable power distribution in demanding industrial environments and complex control panels. Motors and Machinery: Provides vital protection for industrial motors and processing equipment, preventing damage from electrical faults and ensuring operational consistency. Switchgear: Perfectly suited for integration into switchgear assemblies and circuit protection applications, enhancing overall system safety. Commercial Electrical Systems: Offers strong safety and protection for electrical circuits within commercial buildings, ensuring a secure and efficient power supply. Why Choose This Model?The ABB OT125F4N2 distinguishes itself as an excellent choice for your electrical protection needs due to its unwavering reliability, advanced safety features, and intelligent design. This model not only delivers enhanced protection against damaging overloads and short circuits but also features a compact, space-saving design that simplifies installation and optimizes panel space. Its long-term resilience ensures consistent, dependable operation even in the most challenging industrial settings, significantly reducing the risk of costly downtime. By quickly interrupting faults, the OT125F4N2 prevents system damage, thereby extending the lifespan of your valuable equipment and safeguarding your operational efficiency. Opting for the ABB OT125F4N2 means investing in a high-performance solution that combines ABB's renowned quality with cutting-edge electrical protection technology, ensuring the safety and longevity of your crucial electrical systems.Order NowSecure your electrical systems with the exceptional protection of the ABB OT125F4N2 air circuit breaker. Explore its capabilities and integrate this robust solution into your infrastructure today. For additional information or to place an order, please reach out to our sales team or visit our product page. You can also explore our full selection of ABB Contactors and Contactor Relays or browse the entire ABB Industrial Automation Products category for other innovative solutions.FAQWhat is the primary function of the ABB OT125F4N2?The ABB OT125F4N2 is primarily designed to provide advanced overload and short-circuit protection for electrical systems in various industrial and commercial settings.What is the rated current of this circuit breaker?The rated current for the ABB OT125F4N2 is 125A, making it suitable for a wide range of medium-power applications.Can this circuit breaker be used in commercial buildings?Yes, the ABB OT125F4N2 offers robust safety and protection for electrical circuits within commercial buildings, ensuring a secure and efficient power supply.

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$283.99
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PRODUCT DETAILS

ABB OT125F4N2 | 1SCA105051R1001

Overview

This is a genuine ABB component from the Low Voltage Products family. 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
  • Engineered to integrate inside Low Voltage Products installations

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 for the Low Voltage Products family

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

Technical Specifications

  • Rated Voltage: 415V AC
  • Rated Current: 125A
  • Breaking Capacity: 36kA
  • Frequency: 50/60 Hz
  • Operating Temperature: -25°C to 70°C
  • Dimensions (L x W x H): 185 mm x 145 mm x 115 mm
  • Weight: 2.8 kg
  • Protection Class: IP20

Applications

  • Power Distribution Systems: Essential for dependable power distribution in demanding industrial environments and complex control panels.
  • Motors and Machinery: Provides vital protection for industrial motors and processing equipment, preventing damage from electrical faults and ensuring operational consistency.
  • Switchgear: Perfectly suited for integration into switchgear assemblies and circuit protection applications, enhancing overall system safety.
  • Commercial Electrical Systems: Offers strong safety and protection for electrical circuits within commercial buildings, ensuring a secure and efficient power supply.

Why Choose the OT125F4N2?

The ABB OT125F4N2 distinguishes itself as an excellent choice for your electrical protection needs due to its unwavering reliability, advanced safety features, and intelligent design. This model not only delivers enhanced protection against damaging overloads and short circuits but also features a compact, space-saving design that simplifies installation and optimizes panel space. Its long-term resilience ensures consistent, dependable operation even in the most challenging industrial settings, significantly reducing the risk of costly downtime. By quickly interrupting faults, the OT125F4N2 prevents system damage, thereby extending the lifespan of your valuable equipment and safeguarding your operational efficiency. Opting for the ABB OT125F4N2 means investing in a high-performance solution that combines ABB's renowned quality with cutting-edge electrical protection technology, ensuring the safety and longevity of your crucial electrical systems.

Availability & Shipping

  • In stock: OT125F4N2 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 OT125F4N2 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — ABB

The ABB OT125F4N2 is primarily designed to provide advanced overload and short-circuit protection for electrical systems in various industrial and commercial settings.

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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PALM Parts Solution sells used surplus products. PALM Parts Solution is not an authorized distributor, affiliate, or representative for the brands we carry. Products sold by PALM Parts Solution come with PALM Parts Solution's 1-Year Warranty and do not come with the original manufacturer's warranty. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. This website is not sanctioned or approved by any manufacturer or tradename listed.

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