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Allen Bradley 140U MCB 140U-JD6D3-C70

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140U-JD6D3-C70

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The 140U-JD6D3-C70 is a molded case circuit breaker designed by Allen Bradley. This device features a JD-frame size and operates with a continuous current rating of 70 Amps. It supports multiple voltage ratings and includes fixed thermal and magnetic trip options for enhanced protection against overcurrents.

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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-JD6D3-C70

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140U MCB
Part Number140U-JD6D3-C70
Weight32.00 lbs (14.51 kg)
Frame SizeJD-Frame
Number of Poles3 Poles
Continuous Current Rating70 A
Voltage Rating (UL)600V AC
Voltage Rating (IEC)690V AC
Trip Unit TypeFixed Thermal / Fixed Magnetic
Interrupting Rating at 480V65 kA
Interrupting Rating at 240V100 kA
Interrupting Rating at 600V25 kA
Protection TypeOverload and Short Circuit
Mounting StylePanel Mount
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The 140U-JD6D3-C70 by Allen Bradley is a molded case circuit breaker engineered for robust protection in electrical systems. The JD-frame size accommodates the breaker’s rated current of 70 Amps, making it suitable for various applications. It features three poles designed for effective circuit management.

This breaker operates at a sustained current rating of 70 A. For electrical ratings, the unit supports up to 600V AC under UL standards and 690V AC as per IEC standards. Its fixed thermal and magnetic trip features provide essential protection against overload and short circuits. This design ensures that both temporary surges and sustained overloads are addressed promptly.

The interrupting ratings demonstrate its capability to withstand fault conditions: 100 kA at 240V ensures reliability in lower-voltage scenarios, while 65 kA at 480V offers solid protection in typical industrial applications. At 600V, its interrupting capacity is rated at 25 kA, sufficient for various situations.

The mounting style enables easy integration into panels, ensuring that the breaker is securely installed while allowing for straightforward access. The 140U-JD6D3-C70 is a fundamental component for maintaining the safety and functionality of electrical systems, blending efficient performance with high reliability.