140U-K3X3

140U-K3X3

Description: The Allen-Bradley 140U-K3X3 circuit breaker frame is a Bulletin 140U series circuit breaker frame. It can be connected to a trip unit in order to create a complete Allen-Bradley Bulletin 140U series circuit breaker. The 140U-K3X3 circuit breaker frame can support a rated current of up to 400 Amps. It also uses terminal lugs that must be ordered separately. The 140U-K3X3 circuit breaker frame is a Size K frame and it can tolerate ambient temperatures of up to 40 degrees Celsius or 104 degrees Fahrenheit.
Rated 4.9 with 17 reviews

Preowned

Includes a 1-Year DO Supply warranty.

DO Supply is not an authorized distributor for Allen Bradley.

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Description: The Allen-Bradley 140U-K3X3 circuit breaker frame is a Bulletin 140U series circuit breaker frame. It can be connected to a trip unit in order to create a complete Allen-Bradley Bulletin 140U series circuit breaker. The 140U-K3X3 circuit breaker frame can support a rated current of up to 400 Amps. It also uses terminal lugs that must be ordered separately. The 140U-K3X3 circuit breaker frame is a Size K frame and it can tolerate ambient temperatures of up to 40 degrees Celsius or 104 degrees Fahrenheit.

Preowned

Includes a 1-Year DO Supply warranty.

DO Supply is not an authorized distributor for Allen Bradley.

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credit cards
better business bureau

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via UPS, DHL, and TNT
Repairs: We offer repair service for the 140U-K3X3.
Exchange: Exchange credit for your defective unit available.
Conditions: We sell preowned surplus and refurbished parts.

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Rated 4.9 with 17 reviews

    Technical Specifications for 140U-K3X3

BrandAllen-Bradley / Rockwell Automation
Series140U MCB
Part Number140U-K3X3
DescriptionBreaker Frame
FrameK
Current Rating400 Amps
Interrupting Rating35 Kilo-Amps (KA)
Number of Poles3
Rated Operating Voltage480 Volts AC
Type of ControlToggle Lever
TerminalsEnd Cap Bolt-On
Operating Temperature-8 to 60 Degrees Celsius
BrandAllen-Bradley / Rockwell Automation
Series140U MCB
Part Number140U-K3X3
DescriptionBreaker Frame
FrameK
Current Rating400 Amps
Interrupting Rating35 Kilo-Amps (KA)
Number of Poles3
Rated Operating Voltage480 Volts AC
Type of ControlToggle Lever
TerminalsEnd Cap Bolt-On
Operating Temperature-8 to 60 Degrees Celsius
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About 140U-K3X3

The Allen-Bradley 140U-K3X3 UL Molded Case Circuit Breaker is a K-Frame breaker frame that is designed for overload and short-circuit protection of a wide range of control panel applications. The K-Frame circuit breakers have a very small footprint, making them ideal for limited panel space applications. They support back-feeding at 240, 480, or 277 Volts AC, and they are used in applications like feeder circuits, small cabinets, distribution panels, branch circuit protection, heaters, air conditioning, refrigeration, and high-intensity discharge applications (HID lamps). The 140U-K3X3 Circuit Breaker is a 3-pole circuit breaker frame with a 400 Amps current rating and a 35 Kilo-Amps maximum breaking capacity rating. It supports circuits with a 240 Volts AC to 600 Volts AC voltage supply range, and it has an insulation voltage rating of 750 Volts.



 



The 140U-K3X3 Circuit Breaker has a mechanical lifespan rating of 100,000 operations, and it also has an electrical life cycle of 10,000 operations. The 140U-K3X3 Circuit Breaker has no factory-installed internal modules, but modules like the shunt-trip, auxiliary contact, under voltage release, and alarm contacts can be installed easily within the frame. Likewise, trip unit units of various types (Fixed Thermal/Fixed Magnetic, Fixed Thermal/Adjust Magnetic, Adjust Thermal/Fixed Magnetic, Adjust Thermal/Adjust Magnetic, Electronic LS, etc.) can be installed within the frame. The 140U-K3X3 Circuit Breaker also supports a long list of external accessories. This breaker frame supports mounting in a control panel enclosure, and it has a rated operating temperature limit of 60 degrees Celsius. It has an open enclosure type design, and it supports installation at a maximum altitude of 2000 meters (6000 feet) without de-rating.



Technical Description of 140U-K3X3

The Allen-Bradley 140U-K3X3 Circuit Breaker is a UL489 listed Molded Case Circuit Breaker Frame with a K-Frame rating. It has an Interrupting Rating of 35 kilo-Amps (KA) and a voltage rating of 480 Volts AC.

Repair Services for 140U-K3X3

Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 140U-K3X3. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Dimensions For 140U-K3X3

Size
Input Type
Panel Cutout Height in mm
Panel Cutout Width in mm
Terminal Height in mm
Terminal Width in mm
Terminal Overall Depth in mm
Terminal Mounted Depth in mm

Dimensions For 140U-K3X3

Resolutions For 140U-K3X3

About

Technical Specifications for 140U-K3X3

BrandAllen-Bradley / Rockwell Automation
Series140U MCB
Part Number140U-K3X3
DescriptionBreaker Frame
FrameK
Current Rating400 Amps
Interrupting Rating35 Kilo-Amps (KA)
Number of Poles3
Rated Operating Voltage480 Volts AC
Type of ControlToggle Lever
TerminalsEnd Cap Bolt-On
Operating Temperature-8 to 60 Degrees Celsius
BrandAllen-Bradley / Rockwell Automation
Series140U MCB
Part Number140U-K3X3
DescriptionBreaker Frame
FrameK
Current Rating400 Amps
Interrupting Rating35 Kilo-Amps (KA)
Number of Poles3
Rated Operating Voltage480 Volts AC
Type of ControlToggle Lever
TerminalsEnd Cap Bolt-On
Operating Temperature-8 to 60 Degrees Celsius

About 140U-K3X3

The Allen-Bradley 140U-K3X3 UL Molded Case Circuit Breaker is a K-Frame breaker frame that is designed for overload and short-circuit protection of a wide range of control panel applications. The K-Frame circuit breakers have a very small footprint, making them ideal for limited panel space applications. They support back-feeding at 240, 480, or 277 Volts AC, and they are used in applications like feeder circuits, small cabinets, distribution panels, branch circuit protection, heaters, air conditioning, refrigeration, and high-intensity discharge applications (HID lamps). The 140U-K3X3 Circuit Breaker is a 3-pole circuit breaker frame with a 400 Amps current rating and a 35 Kilo-Amps maximum breaking capacity rating. It supports circuits with a 240 Volts AC to 600 Volts AC voltage supply range, and it has an insulation voltage rating of 750 Volts.



 



The 140U-K3X3 Circuit Breaker has a mechanical lifespan rating of 100,000 operations, and it also has an electrical life cycle of 10,000 operations. The 140U-K3X3 Circuit Breaker has no factory-installed internal modules, but modules like the shunt-trip, auxiliary contact, under voltage release, and alarm contacts can be installed easily within the frame. Likewise, trip unit units of various types (Fixed Thermal/Fixed Magnetic, Fixed Thermal/Adjust Magnetic, Adjust Thermal/Fixed Magnetic, Adjust Thermal/Adjust Magnetic, Electronic LS, etc.) can be installed within the frame. The 140U-K3X3 Circuit Breaker also supports a long list of external accessories. This breaker frame supports mounting in a control panel enclosure, and it has a rated operating temperature limit of 60 degrees Celsius. It has an open enclosure type design, and it supports installation at a maximum altitude of 2000 meters (6000 feet) without de-rating.



Technical Description of 140U-K3X3

The Allen-Bradley 140U-K3X3 Circuit Breaker is a UL489 listed Molded Case Circuit Breaker Frame with a K-Frame rating. It has an Interrupting Rating of 35 kilo-Amps (KA) and a voltage rating of 480 Volts AC.

Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 140U-K3X3. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 140U-K3X3. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

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