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140U-JD3D3-D22

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Technical specifications for 140U-JD3D3-D22

Brand	Allen-Bradley / Rockwell Automation
Series	140U MCB
Part Number	140U-JD3D3-D22
Product type	Circuit breaker
Frame	JD
Poles	3
Current rating	225 Amps
Trip module	Thermal - magnetic

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.

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The 140U-JD3D3-D22 circuit breaker is a compact molded case circuit breaker which belongs to Allen-Bradley’s Bulletin 140U series. The continuous current rating for the 140U-JD3D3-D22 circuit breaker is 225 Amps. The enclosure of the circuit breaker has a JD-type frame. The 140U-JD3D3-D22 circuit breaker comes with an integrated fixed thermal–adjustable magnetic trip module. The 140U-JD3D3-D22 circuit breaker can be used wherever the protection of main circuits and branch circuits against ground faults, short circuits, or overloads is required. The 140U-JD3D3-D22 circuit breaker is well suited to installation inside industrial switchboards, panelboards, and individual enclosures. The number of poles on the 140U-JD3D3-D22 circuit breaker is three. The interrupting capacity rating for the 140U-JD3D3-D22 circuit breaker ranges from a minimum of 30 kiloamps to a maximum of 39 kiloamps.

The minimum and maximum continuous operating current ratings for the 140U series breakers are 15 Amps and 1200 Amps, respectively. Breakers can be ordered with either electronic or thermal-magnetic trip modules. Electronic trip modules offer advanced protection through the adjustable long time, adjustable short time, adjustable instantaneous trip, and adjustable ground fault settings. Common combinations for the electronic trip settings include LS, LSI, LSG, and LSIG. Allen-Bradley recommends several guidelines related to the installation and maintenance of high voltage/high current devices such as the 140U-JD3D3-D22 circuit breaker. The primary precaution that needs to be taken is the main electrical power disconnection. This will ensure the safety of the technicians who are carrying out breaker installation and servicing and will also protect associated electrical equipment against damage. Furthermore only technical personnel who possess the necessary relevant training and experience should be involved in the installation or maintenance of the 140U-JD3D3-D22 circuit breaker. Personnel working on electrical systems should have all the necessary tools and equipment that are recommended for protection against electrical shock.