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Allen-Bradley 140G-K3F3-D40 circuit breaker, 400A, 3 pole, 35kA at 480V AC, thermal-magnetic, Frame K

Allen-Bradley 140G-K3F3-D40

SKU: 140G-K3F3-D40
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$4,320.00
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Allen-Bradley 140G-K3F3-D40

Overview

The Allen-Bradley 140G-K3F3-D40 is a 400A molded case circuit breaker (MCCB) from the 140G Frame K series, designed for reliable protection of electrical circuits in industrial and commercial applications. It features a fixed thermal-magnetic trip unit, providing both overload and short-circuit protection. This 3-pole breaker supports up to 35kA interrupting capacity at 480V AC, making it suitable for high-demand systems requiring robust circuit protection.

Key Features

  • Device Type: Molded Case Circuit Breaker (MCCB)

  • Frame Size: K Frame

  • Rated Current: 400 Amps

  • Trip Type: Fixed Thermal-Magnetic

  • Number of Poles: 3

  • Interrupting Rating: 35kA @ 480V AC

  • Mounting Style: Fixed mount

  • Standards Compliance: UL 489, IEC 60947-2

Technical Specifications

  • Catalog Number: 140G-K3F3-D40

  • Voltage Rating: 600V AC max

  • Interrupting Capacity:

    • 35kA @ 480V AC

    • 18kA @ 600V AC

  • Frequency: 50/60 Hz

  • Trip Unit: Thermal-Magnetic (non-adjustable)

  • Terminal Type: Line and load lugs

  • Dimensions: Compact footprint for K-frame mounting

  • Certifications: UL Listed, CSA Certified, CE

Applications

  • Motor control centers

  • Distribution panels

  • Industrial machinery and process equipment

  • Building infrastructure and commercial power systems

  • Backup protection for transformers and large drives

Why Choose the 140G-K3F3-D40

  • Provides reliable overcurrent and short-circuit protection

  • Compact yet powerful for high-current applications

  • Compliant with international safety and performance standards

  • Designed for easy panel integration and installation

  • Ideal for demanding industrial environments

Order Now

The Allen-Bradley 140G-K3F3-D40 400A molded case circuit breaker is in stock and available for global shipping. 

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.
1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.
Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.

Description

Allen-Bradley 140G-K3F3-D40

Overview

The Allen-Bradley 140G-K3F3-D40 is a 400A molded case circuit breaker (MCCB) from the 140G Frame K series, designed for reliable protection of electrical circuits in industrial and commercial applications. It features a fixed thermal-magnetic trip unit, providing both overload and short-circuit protection. This 3-pole breaker supports up to 35kA interrupting capacity at 480V AC, making it suitable for high-demand systems requiring robust circuit protection.

Key Features

  • Device Type: Molded Case Circuit Breaker (MCCB)

  • Frame Size: K Frame

  • Rated Current: 400 Amps

  • Trip Type: Fixed Thermal-Magnetic

  • Number of Poles: 3

  • Interrupting Rating: 35kA @ 480V AC

  • Mounting Style: Fixed mount

  • Standards Compliance: UL 489, IEC 60947-2

Technical Specifications

  • Catalog Number: 140G-K3F3-D40

  • Voltage Rating: 600V AC max

  • Interrupting Capacity:

    • 35kA @ 480V AC

    • 18kA @ 600V AC

  • Frequency: 50/60 Hz

  • Trip Unit: Thermal-Magnetic (non-adjustable)

  • Terminal Type: Line and load lugs

  • Dimensions: Compact footprint for K-frame mounting

  • Certifications: UL Listed, CSA Certified, CE

Applications

  • Motor control centers

  • Distribution panels

  • Industrial machinery and process equipment

  • Building infrastructure and commercial power systems

  • Backup protection for transformers and large drives

Why Choose the 140G-K3F3-D40

  • Provides reliable overcurrent and short-circuit protection

  • Compact yet powerful for high-current applications

  • Compliant with international safety and performance standards

  • Designed for easy panel integration and installation

  • Ideal for demanding industrial environments

Order Now

The Allen-Bradley 140G-K3F3-D40 400A molded case circuit breaker is in stock and available for global shipping. 

Condition

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.

Warranty

1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.

Disclaimer

Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.
Allen-Bradley 140G-K3F3-D40

Allen-Bradley 140G-K3F3-D40

$4,320.00
Add to wishlist
Allen-Bradley 140G-K3F3-D40

Allen-Bradley 140G-K3F3-D40

Your Price:
$4,320.00
Item Added to Your Cart
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