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.

Learn more

140G-KC6F3-D40

Need a Specific Revision?

The 140G-KC6F3-D40 is an advanced molded case circuit breaker from Allen-Bradley, designed for robust electrical applications. It handles a maximum current rating of 400 Amps and features an interrupting rating of 65 kA, allowing it to manage substantial fault conditions efficiently.

Call for an immediate quote

2 Year DO Supply Warranty

Available

Ships from Raleigh, NC

Learn more

Warranty

We sell industrial automation parts backed by our 2-year DO Supply Warranty.
Shipping

Same-day domestic and expedited international shipping with UPS, FedEx, DHL, and more.
Payment Methods

AMEX, Visa, MasterCard, Discover, wire transfer, and more, plus flexible payment plans.
Repairs & Exchanges

Repair and exchange services for all existing automation products.
Reseller Options

Drop shipping, blind shipping, and account shipping with no extra fees.

Technical specifications for 140G-KC6F3-D40

Manufacturer	Rockwell Automation
Brand	Allen-Bradley
Part Number/Catalog No.	140G-KC6F3-D40
Product Type	Molded Case Circuit Breaker
Frame	KC
Amps	400
Interrupting Rating	65 kA
Protection Type	Adjust Thermal/ Adjust Magnetic
Current Range	400 A
Rated Insulation Voltage	1000V
Rated Impulse Withstand Voltage	8 kV
Weight	7.17 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.

View as PDF

Request a Repair

The 140G-KC6F3-D40 molded case circuit breaker by Allen-Bradley is engineered for effective electrical system protection. Operating in the KC frame, it manages current loads of up to 400 Amps. With a high interrupting rating of 65 kA, it efficiently addresses potential overcurrent scenarios.

This model features both adjustable thermal and magnetic protection mechanisms, allowing customization based on application requirements. The rated insulation voltage is 1000 volts, paired with an impulse withstand voltage rating of 8 kV, ensuring resilience under transient conditions.

Weighing 7.17 pounds, the 140G-KC6F3-D40 is designed to be both functional and durable. It supports a mechanical life of 120 operations per hour, accommodating frequent cycling needs, while its electrical life is rated at 60 operations per hour, making it suitable for industrial applications where reliability is crucial.