Free UPS Ground on All Orders!
Request a
Fast Quote
Account
Cart
Quote
+1 (919) 205-4392
Allen Bradley 140G MCB 140G-K3H4-D40

Product image is representative; revision or series may vary. Contact us to request a specific version.

140G-K3H4-D40

|
Need a Specific Revision?

The 140G-K3H4-D40 is an advanced molded case circuit breaker designed by Allen-Bradley. With a K frame and a robust current rating of 400 Amps, this device is engineered for demanding applications. It features an interrupting capacity of 35 kA and utilizes electronic LSI protection for superior performance.

Call for an immediate quote
2 Year DO Supply Warranty
Available
Ships from Raleigh, NC
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 of our products come with DO Supply's 2-year warranty.
Learn more
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.

Technical specifications for 140G-K3H4-D40

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-K3H4-D40
Weight15.00 lbs (6.80 kg)
FrameK
Amps400
Interrupting Rating35 kA
Protection TypeElectronic LSI
Poles4
Current Range400 A
Rated Insulation Voltage1000 V
Rated Impulse Withstand Voltage8 kV
Mechanical Life120 Operations/hr.
Electrical Life60 Operations/hr.
View as PDF
Request a Repair

The Allen-Bradley 140G-K3H4-D40 stands out as a molded case circuit breaker engineered for efficiency and safety in electric systems. This model belongs to the 140G series and operates at a maximum current of 400 Amps. It incorporates a K-frame design, making it suitable for various installations. With an interrupting rating of 35 kA, it ensures reliable protection against faults.

Equipped with electronic LSI protection, this circuit breaker responds effectively to current fluctuations. The design consists of four poles, which adds flexibility for different circuit configurations. It operates within a rated insulation voltage of 1000 volts, confirming its capability for high-voltage applications.

Additionally, the device withstands impulse ratings of up to 8 kV, making it robust even in demanding conditions. Weighing 9.15 pounds, the 140G-K3H4-D40 is designed for ease of handling and installation. Its mechanical life is rated at 120 operations per hour, while its electrical life is rated at 60 operations per hour, highlighting its durability in continuous operation scenarios. This circuit breaker is essential for maintaining safety and performance in electrical distribution networks.

Revision Part #Also known as
140G-K3H4-D40 Ser A140G-K3H4-D40/A, Series A, Rev A
Don't see your particular revision? Contact us now.