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Allen Bradley 140U MCB 140U-L3D3-D25
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140U-L3D3-D25

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The 140U-L3D3-D25 Circuit Breaker is an Allen-Bradley/Rockwell Automation Molded Case Circuit Breaker manufactured as part of the 140U MCB product line. It comes with L Frame and with a current rating of 600 Amps. The circuit breaker has an interrupting rating or breaking capacity of 30 to 39 kiloamps at 480 Volts.

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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 140U-L3D3-D25

BrandAllen Bradley/Rockwell Automation
Series140U MCB
Part Number140U-L3D3-D25
Product LineMolded Case Circuit Breakers
Bulletin140U
Frame SizeL
Current Rating600 Amperes
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.

The 140U-L3D3-D25 Circuit Breaker is an Allen Bradley/Rockwell Automation Molded Case Circuit Breaker manufactured as part of the 140U MCB product line. It comes with an L Frame with a current rating of 600 Amps. The circuit breaker has an interrupting rating or breaking capacity of 30 to 39 kiloamps at 480 Volts. The Allen-Bradley 140U-L3D3-D25 Circuit Breaker has fixed thermal and adjustable magnetic protection with a breaking capacity or interrupting rating of 45 kiloamps at 400 Volts and 35 kiloamps at 480 Volts. These are the interrupting ratings at a thermal trip and an operational current rating of 250 Amps with an overall current rating of 2500 Amps. The L Frame size circuit breakers have an interrupting rating of 45 to 70 kiloamps at 380 to 415 Volts, 35 to 65 kiloamps at 480 Volts, 25 to 35 kiloamps at 600 Volts, and 20 to 25 kiloamps at 690 Volts.

Some of the notable features of the Allen-Bradley 140U-L3D3-D25 Circuit Breaker include field-installed internal control modules, rotary operators, flex cable operators, and molded case switches. It has high interrupting ratings in compact dimensions and it is globally accepted and rated for compliance with the UL, CSA, IEC, KEMA-KEUR, and CE standards, which means that it can be universally used in applications around the world. Generally, the Bulletin 140U molded case circuit breakers like the 140U-L3D3-D25 Circuit Breaker are rated for 15 to 1200 Amps of current with a thermal-magnetic current range of 15 to 800 Amps, and an electronic current range of 70 to 1200 Amps with long time or short time settings, long-time or short-time or high instantaneous settings, long time or short time or ground fault settings, and long-time, short time, high instantaneous, and ground fault settings.

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