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Allen Bradley 140G MCB 140G-KTH4-D40

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140G-KTH4-D40

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The 140G-KTH4-D40 is a robust molded case circuit breaker created by Allen-Bradley. It is built for 400 amps of current and features a trip unit interrupting rating option. This model employs electronic LSI protection, making it suitable for demanding applications.

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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-KTH4-D40

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-KTH4-D40
Weight10.00 lbs (4.54 kg)
FrameK
Amps400
Interrupting RatingTrip Unit
Protection TypeElectronic LSI
Poles4
Current Range400 A
Rated Insulation Voltage1000 V
Rated Impulse Withstand Voltage8 kV
Mechanical Life120 Operations/hr.
Electrical Life60 Operations/hr.
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The Allen-Bradley 140G-KTH4-D40 molded-case circuit breaker is engineered for efficient protection of electrical circuits. With a frame size designated as size K, this device can handle a maximum current rating of 400 Amps. It incorporates a trip unit for interrupting purposes, ensuring reliable fault clearance. This model's protection option is electronic LSI technology, enhancing its functionality in critical applications.

This circuit breaker features four poles, catering to varied connection needs. It operates at a rated insulation voltage of 1000 volts, ensuring suitability for high-voltage applications. Furthermore, its capacity to withstand impulse voltages reaches up to 8 kV, solidifying its reliability against transient spikes.

The 140G-KTH4-D40 weighs 9.15 pounds, providing a balance between durability and manageable handling. Its mechanical lifespan is rated at 120 operations per hour, while its electrical lifespan is 60 operations per hour, making it a trustworthy choice for industrial environments.

Revision Part #Also known as
140G-KTH4-D40 Ser A140G-KTH4-D40/A, Series A, Rev A
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