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Allen Bradley 140U MCB 140U-L3D3-D60

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140U-L3D3-D60

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The 140U-L3D3-D60, part of Allen Bradley's 140U MCB series, is a molded case circuit breaker with robust specifications. Designed to manage a current rating of 600 A, it features a protection mechanism that combines fixed thermal and adjustable magnetic systems for effective circuit management.

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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-L3D3-D60

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140U MCB
Part Number140U-L3D3-D60
Weight9.00 lbs (4.08 kg)
Protection TypeFixed Thermal/Adjust Magnetic
Current Rating600 A
Minimum Interrupting Rating30 kA
Maximum Interrupting Rating39 kA
Number of Poles3 Poles
Minimum Operating Temperature-25°C
Maximum Operating Temperature60°C
Minimum Storage Temperature-40°C
Maximum Storage Temperature80°C
Installation Altitude1000 m
Minimum Relative Humidity5% (non-condensing)
Maximum Relative Humidity95% (non-condensing)
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The Allen Bradley 140U-L3D3-D60 is classified as a molded case circuit breaker. It is engineered to protect electrical circuits effectively. With a current rating of 600 A, this device ensures reliable circuit interruption under various conditions.

This circuit breaker features a hybrid protection type that includes fixed thermal and adjustable magnetic characteristics. It is designed with three poles, catering to 3-phase systems. The minimum interrupting capacity is 30 kA, providing ample protection, while the maximum interrupting rating reaches up to 39 kA, essential for safeguarding against fault conditions.

Temperature adaptability is a key feature of the 140U-L3D3-D60, with a minimum operating temperature of -25°C and a maximum of 60°C guaranteeing versatile functionality across environments. Additionally, it can withstand storage temperatures from -40°C to 80°C, making it suitable for various climates.

Installation considerations include an elevation limit of 1000 meters, ensuring effectiveness in diverse locations. The device also maintains reliable performance in humidity conditions, rated for a minimum of 5% up to a maximum of 95% relative humidity, without condensation.