Allen-Bradley 140G-K3F3-D40

Overview

The Allen-Bradley 140G-K3F3-D40 is a robust and essential molded case circuit breaker (MCCB) engineered to provide superior protection and reliable performance in demanding industrial power distribution environments. Designed for efficiency and safety, this 400A, 3-pole MCCB ensures the continuous operation of critical systems by safeguarding against damaging overloads and short circuits. Its K frame design signifies its suitability for heavy-duty applications where steadfast electrical management is paramount. With a formidable 35kA interrupt rating, the 140G-K3F3-D40 is built to handle significant fault currents, ensuring the integrity and longevity of your industrial electrical infrastructure. The integrated thermal magnetic protection mechanism offers a dual layer of defense, reacting swiftly to both sustained overcurrents and instantaneous short-circuit conditions, making it an indispensable component for any high-performance industrial setup.

Key Features

• High 400A Rated Current (80% Rated): Delivers exceptional power handling capabilities, making it perfectly suited for high-current industrial machinery and demanding electrical loads.
• Reliable 3-Pole Configuration: Provides comprehensive and simultaneous protection across all three phases of your electrical system, crucial for three-phase industrial applications.
• Durable K Frame Design: Engineered with a robust K frame, ensuring enhanced mechanical strength and improved current-carrying capacity for rigorous industrial environments.
• Impressive 35kA Interrupt Rating: Offers a high level of short-circuit protection, capable of safely interrupting large fault currents to prevent catastrophic equipment damage.
• Precision Thermal Magnetic Protection (T/M): Combines thermal overload protection for sustained overcurrents and magnetic protection for instantaneous short circuits, ensuring comprehensive circuit safety.
• Industrial-Grade Construction: Built by Allen-Bradley, a leader in industrial automation, guaranteeing a high level of quality, durability, and long-term operational reliability.
• Optimized for Power Distribution: Specifically designed to excel in challenging industrial power distribution and protection applications, promoting uptime and operational efficiency.

Technical Specifications

• Model: 140G-K3F3-D40
• Series: 140G Molded Case Circuit Breaker
• Rated Current: 400A (80% Rated)
• Number of Poles: 3
• Frame Type: K Frame
• Interrupt Rating: 35kA @ 480V AC
• Protection Type: Thermal Magnetic (T/M)
• Voltage Rating: Designed for common industrial voltage standards
• Mounting: Standard industrial mounting (details available in technical documentation)

Applications

The Allen-Bradley 140G-K3F3-D40 MCCB is a versatile protective device suitable for a wide array of industrial applications, including:

• Primary Industrial Power Distribution: Ideal for safeguarding incoming power lines and main distribution panels in factories, plants, and large commercial facilities.
• Heavy-Duty Electrical Panels & Switchgear: Provides crucial overcurrent and short-circuit protection within complex electrical switchgear assemblies.
• Motor Control & Overload Protection: Ensures the safe operation of large industrial motors by providing reliable protection against overloads and fault conditions.
• High-Fault Current Environments: Essential for installations where significant fault currents are a risk, requiring reliable and rapid circuit interruption.
• Commercial and Institutional Buildings: Applicable in large-scale commercial and institutional settings requiring robust electrical protection for critical systems.
• Equipment Protection: Protects valuable industrial machinery and processing equipment from electrical damage, extending their operational lifespan.

Why Choose This Model?

• Unparalleled Protection: With a 35kA interrupt rating and advanced thermal magnetic trip unit, the 140G-K3F3-D40 offers superior protection against both sustained overloads and abrupt short circuits, ensuring maximum safety for your operations.
• Rugged Industrial Durability: Constructed from high-quality materials and engineered to Allen-Bradley's stringent standards, this MCCB is built to withstand the harsh conditions of industrial environments, providing long-lasting, reliable performance.
• Optimized for Performance: The 400A rated current and K frame design make it an excellent choice for demanding industrial applications requiring high current capacity and robust mechanical integrity.
• Enhanced System Reliability: By effectively preventing electrical faults from escalating, this circuit breaker helps to maintain system uptime, reduce costly downtime, and protect critical equipment from damage.
• Trusted Brand Quality: As an Allen-Bradley product, the 140G-K3F3-D40 comes with the assurance of a global leader in industrial automation, known for its innovation, reliability, and support.
• Comprehensive Solution: This MCCB acts as a foundational component for securing your electrical infrastructure, providing peace of mind through its integrated and effective protection capabilities.

Order Now

Elevate the safety and reliability of your industrial electrical systems with the Allen-Bradley 140G-K3F3-D40 Molded Case Circuit Breaker. Invest in proven protection and ensure the uninterrupted operation of your vital equipment. For further information on the 140G series or to explore our complete range of Allen-Bradley Industrial Automation Products, including PLCs, HMIs, drives, and sensors, please browse our inventory.