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Allen Bradley 140U MCB 140U-KTL3-D40

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140U-KTL3-D40

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The 140U-KTL3-D40 is a molded case circuit breaker from Allen Bradley's 140U MCB series. It is designed for fixed mounting applications and supports up to 400 amps of current, functioning effectively at a rated voltage of 690 VAC.

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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 140U-KTL3-D40

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140U MCB
Part Number140U-KTL3-D40
Weight3.00 lbs (1.36 kg)
Frame SizeK frame
Number of Poles3 Poles
Component TypeTrip unit
Current Rating400 A
Rated Voltage690 VAC
Minimum Frequency50 Hz
Maximum Frequency60 Hz
Interrupting Rating at 480 V65 kA
Interrupting Rating at 600 V35 kA
Interrupting Rating at 240 V100 kA
Mounting TypeFixed mount
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The Allen Bradley part number 140U-KTL3-D40 is classified as a molded case circuit breaker, crucial for protecting electrical circuits from overloads and short circuits. Designed with a K frame and featuring three switching poles, it serves as a dependable solution for a variety of applications requiring efficient load management. This circuit breaker operates under a current rating of 400 A and is suitable for a maximum rated voltage of 690 VAC.

The operational frequency range for this unit is set between 50 Hz and 60 Hz, making it adaptable to differing power standards. Its interrupting capacity is noteworthy; it holds a rating of 100 kA at 240 V, enabling it to manage significant fault currents. At 480 V, its interrupting rating is 65 kA, and it maintains a 35 kA interrupting capacity at 600 V. This performance level demonstrates its capability to handle demanding electrical situations effectively.

For installation, this circuit breaker requires fixed mounting, ensuring a stable and secure fit in industrial environments. The combination of these specifications makes the 140U-KTL3-D40 a robust and reliable choice for various electrical distribution systems.