Free UPS Ground on All Orders!
Request a
Fast Quote
Account
Cart
Quote
+1 (919) 205-4392
Allen Bradley 140U MCB 140U-H3C3-D12

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

140U-H3C3-D12

|
Need a Specific Revision?

The 140U-H3C3-D12 is a molded case circuit breaker within the Allen Bradley 140U MCB series. This component features a 125 A rated current and operates with a magnetic trip current of 1250 A while maintaining high breaking capacity levels across various voltages.

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 140U-H3C3-D12

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140U MCB
Part Number140U-H3C3-D12
UPC611320842876
Weight2.19 lbs (0.99 kg)
GTIN10662074388889
Pole Type3 Poles
Magnetic Trip Current1250 A
Rated Current125 A
Min. Frequency50 Hz
Max. Frequency60 Hz
Breaking Capacity @ 220-240 V85 kA
Breaking Capacity @ 380-415 V40 kA
Breaking Capacity @ 525 V25 kA
Breaking Capacity @ 690 V4 kA
Interrupting Rating @ 240 V85 kA
Interrupting Rating @ 480 V35 kA
Interrupting Rating @ 600/347 V22 kA
Request a Repair

The Allen Bradley 140U-H3C3-D12 is classified as a molded case circuit breaker and is a vital component in electrical protection systems. It features a magnetic trip current rated at 1250 amperes, which assists in protecting circuits against overloads. This model is equipped with three poles. Its nominal current rating is 125 amperes, ensuring adequate capacity for various applications.

Operating frequencies are suitable for standard industrial environments with a minimum frequency of 50 Hz and a maximum at 60 Hz. Notably, the breaking capacity varies with voltage levels: it offers up to 85 kA at 220-240 volts, making it highly effective in managing fault conditions under these voltages. For other voltages, the breaking capacity is rated at 40 kA for 380-415 V, declining to 25 kA at 525 V and only 4 kA at 690 V.

This breaker is further specified by its interrupting ratings, which denote its ability to interrupt fault currents without sustaining damage. The interrupting rating reaches 85 kA at 240 V, maintains a robust 35 kA at 480 V, and has a rating of 22 kA at 600/347 V. Thus, the 140U-H3C3-D12 is designed to ensure safety and reliability in electrical systems.