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Allen Bradley 140U MCB 140U-H6C3-D12
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140U-H6C3-D12

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The 140U-H6C3-D12 circuit breaker is a fixed-thermal and fixed-magnetic circuit breaker that has been manufactured and designed by Allen-Bradley. This breaker has been designed to operate with a high interrupting rating that provides overload and short-circuit currents to different devices that runĀ from motors to a different group of devices.

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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-H6C3-D12

BrandAllen-Bradley / Rockwell Automation
Series140U MCB
Part Number140U-H6C3-D12
TypeMolded-case circuit breaker
Detection mechanismFixed thermal/Fixed Magnetic
RatingHigh
Interrupting Capacity60-69 kA
Frequency60 Hertz
Voltage380-690 Volts
Poles3
Rotary operatorYes
Flex cableYes
Operating temperature40 degrees Celsius (75 degrees Celsius if derated)
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-H6C3-D12 circuit breaker is a fixed-thermal and fixed-magnetic circuit breaker that has been manufactured and designed by Allen-Bradley. This breaker has been designed to operate with a high interrupting rating that provides overload and short-circuit currents to different devices that runĀ from the motors to a different group of devices. Circuit breakers have a mechanism that detects abnormal current and makes it perform a tripping action so that this current flow is stopped before it enters the conduits. This way, it protects and preserves conduits and equipment. The Allen-Bradley 140U-H6C3-D12A fixed-thermal and the fixed-magnetic circuit breaker has an interrupting capacity of 60 to 69 kiloamps and it operates at a frequency of 60 Hertz. This breaker must not be exposed to extreme temperatures since high temperatures can affect the thermal detection mechanism of the breaker. It is recommended to have ventilation equipment around the breaker ifĀ the temperatures rise above 75 degrees Celsius.

The Allen-Bradley 140U-H6C3-D12 fixed-thermal and fixed-magnetic circuit breaker need to be attached to a compatible motor. When it comes to compatibility, it is important that the current rating of the motor matchesĀ the protection level provided by the breaker. This breaker can be installed in series with other breakers that have the same capacity to protect a whole circuit of equipment. The Allen-Bradley 140U-H6C3-D12 fixed-thermal and fixed-magnetic circuit breaker can be installed in a cabinet. The interrupting rating of the breaker varies according to the voltage applied and that voltage can rangeĀ from 380 to 690 Volts. The breaker comes with flex cables and rotary operators.

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