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140G-K3K4-D40

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The 140G-K3K4-D40 from Allen-Bradley is a robust molded case circuit breaker designed for high-capacity applications. Rated for 400 Amps, it features electronic LSIG protection and provides an interrupting capability of 35 kA.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with DO Supply's 2-year warranty.

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Technical specifications for 140G-K3K4-D40

Manufacturer	Rockwell Automation
Brand	Allen-Bradley
Part Number/Catalog No.	140G-K3K4-D40
Product Type	Molded Case Circuit Breaker
Frame	K
Amps	400
Interrupting Rating	35 kA
Protection Type	Electronic LSIG
Poles	4
Current Range	400 A
Rated Insulation Voltage	1000V
Rated Impulse Withstand Voltage	8 kV
Weight	9.15 lb
Mechanical Life	120 Operations/hr.
Electrical Life	60 Operations/hr.

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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The Allen-Bradley 140G-K3K4-D40 is a molded case circuit breaker engineered for high-performance reliability in demanding environments. This device operates at a substantial current rating of 400 Amps and is built to withstand significant electrical loads. The breaker's interrupting rating is 35 kA, making it suitable for applications that require swift and effective failure management.

With its electronic LSIG protection technology, this breaker offers advanced safety features to guard against overload conditions. Additionally, the 140G-K3K4-D40 includes four poles, broadening its application range in complex circuits. The frame is classified as a K frame, which is designed to optimize performance in higher current settings.

This unit consistently ensures safe operation in high-voltage environments with a rated insulation voltage of 1000V. Furthermore, it can tolerate impulse withstand voltages of up to 8 kV, enhancing durability against transient conditions. At 9.15 lbs., installation is straightforward, and its design emphasizes operational efficiency.

This molded case circuit breaker maintains a rated mechanical life of 120 operations per hour, ensuring long-term reliability. Additionally, it has a rated electrical life of 60 operations per hour, making it a dependable choice for various industrial applications.