140U-K3D3-D30

140U-K3D3-D30

Description: The Allen-Bradley/Rockwell Automation 140U-K3D3-D30 circuit breaker is a Bulletin 140U series molded case circuit breaker with a Size K frame. It can protect circuits in industrial systems with fixed thermal protection and with adjustable magnetic protection. The 140U-K3D3-D30 molded case circuit breaker’s interrupting ratings are 35 Amps at 480 Volts and 40 Amps at 400 Volts. Its continuous operating current rating is 300 Amps. The 140U-K3D3-D30 molded case circuit breaker is designed to be compact and to provide powerful interrupting ratings at the same time.
Rated 4.5 with 16 reviews

Preowned

Includes a 1-Year DO Supply warranty.

DO Supply is not an authorized distributor for Allen Bradley.

top legal disclaimer
top legal disclaimer

credit cards accepted
better business bureau

Available Now

Submit RFQ for 140U-K3D3-D30

Add more parts to quote

Description: The Allen-Bradley/Rockwell Automation 140U-K3D3-D30 circuit breaker is a Bulletin 140U series molded case circuit breaker with a Size K frame. It can protect circuits in industrial systems with fixed thermal protection and with adjustable magnetic protection. The 140U-K3D3-D30 molded case circuit breaker’s interrupting ratings are 35 Amps at 480 Volts and 40 Amps at 400 Volts. Its continuous operating current rating is 300 Amps. The 140U-K3D3-D30 molded case circuit breaker is designed to be compact and to provide powerful interrupting ratings at the same time.

Preowned

Includes a 1-Year DO Supply warranty.

DO Supply is not an authorized distributor for Allen Bradley.

top legal disclaimer
disclaimer
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-K3D3-D30.
Exchange: Exchange credit for your defective unit available.
Conditions: We sell preowned surplus and refurbished parts.

To speak to a sales representative for pricing & lead time:


Rated 4.5 with 16 reviews

    Technical Specifications for 140U-K3D3-D30

BrandAllen-Bradley / Rockwell Automation
Series140U MCB
Part Number140U-K3D3-D30
DescriptionUL Molded Case Circuit Breaker
FrameK
Current Rating300 Amps
Interrupting Rating35 Kilo-Amps
Protection TypeFixed Thermal/AdjustableMagnetic Trip Unit
Number of Poles3
Rated Operating Voltage480 Volts AC
Type of Control Toggle Lever
TerminalsEnd Cap Bolt-On
Operating Temperature -8 to 60 Degrees Celsius
BrandAllen-Bradley / Rockwell Automation
Series140U MCB
Part Number140U-K3D3-D30
DescriptionUL Molded Case Circuit Breaker
FrameK
Current Rating300 Amps
Interrupting Rating35 Kilo-Amps
Protection TypeFixed Thermal/AdjustableMagnetic Trip Unit
Number of Poles3
Rated Operating Voltage480 Volts AC
Type of Control Toggle Lever
TerminalsEnd Cap Bolt-On
Operating Temperature -8 to 60 Degrees Celsius
s

About 140U-K3D3-D30

The Allen-Bradley 140U-K3D3-D30 Molded Case Circuit Breaker is a UL-489 listed circuit breaker that is designed to provide overcurrent protection to a wide range of industrial control panel applications. It belongs to the 400 Amos rated K-Frame circuit breaker family and it comes with a compact design that makes it suitable for applications that require minimal panel space. The 140U-K3D3-D30 Circuit Breaker is suitable for back-feeding (at around 240, 480, and 277 Volts AC, and it can be used in applications like the feeder circuits (brach circuit application), control circuits, heating, air conditioning and refrigeration (HACR), and the high-intensity-discharge circuit applications.



 



The 140U-K3D3-D30 Circuit Breaker has a 3-phase supply voltage rating of 480 Volts AC and a maximum trip current rating of 300 Amps. It has a breaking capacity of 35 Kilo-Amps (KA) at 480 Volts AC input voltage and a UL rated insulation voltage of 600 Volts. This device has a lifespan (mechanical) of about a hundred thousand operations and an electrical lifespan of around ten thousand operations. The 140U-K3D3-D30 Circuit Breaker has protection unit that consists of a fixed thermal and an adjustable magnetic strip. This trip unit provides fixed overload protection via a bimetal element that actuates the trip with a delay based on the set trip value, and it offers instantaneous trip action via an electromagnetic device with adjustable trip ratings. The 140U-K3D3-D30 Circuit Breaker has a fixed thermal rating of 300 Amps and an adjustable magnetic trip rating between 1500 Amps and 3000 Amps. It has an open style design, and it comes with an end cap bolt-on connector.



Technical Description of 140U-K3D3-D30

The Allen-Bradley 140U-K3D3-D30 Circuit Breaker is a UL listed 489 listed Molded Case Circuit Breaker with a K-Frame rating. It has a 35 kilo-Amps (KA) Interrupting Rating at 480 Volts AC and a Continuous Current Rating of 300 Amps.

Repair Services for 140U-K3D3-D30

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

Our highly skilled technicians can repair your 140U-K3D3-D30. 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-K3D3-D30

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-K3D3-D30

Resolutions For 140U-K3D3-D30

About

Technical Specifications for 140U-K3D3-D30

BrandAllen-Bradley / Rockwell Automation
Series140U MCB
Part Number140U-K3D3-D30
DescriptionUL Molded Case Circuit Breaker
FrameK
Current Rating300 Amps
Interrupting Rating35 Kilo-Amps
Protection TypeFixed Thermal/AdjustableMagnetic Trip Unit
Number of Poles3
Rated Operating Voltage480 Volts AC
Type of Control Toggle Lever
TerminalsEnd Cap Bolt-On
Operating Temperature -8 to 60 Degrees Celsius
BrandAllen-Bradley / Rockwell Automation
Series140U MCB
Part Number140U-K3D3-D30
DescriptionUL Molded Case Circuit Breaker
FrameK
Current Rating300 Amps
Interrupting Rating35 Kilo-Amps
Protection TypeFixed Thermal/AdjustableMagnetic Trip Unit
Number of Poles3
Rated Operating Voltage480 Volts AC
Type of Control Toggle Lever
TerminalsEnd Cap Bolt-On
Operating Temperature -8 to 60 Degrees Celsius

About 140U-K3D3-D30

The Allen-Bradley 140U-K3D3-D30 Molded Case Circuit Breaker is a UL-489 listed circuit breaker that is designed to provide overcurrent protection to a wide range of industrial control panel applications. It belongs to the 400 Amos rated K-Frame circuit breaker family and it comes with a compact design that makes it suitable for applications that require minimal panel space. The 140U-K3D3-D30 Circuit Breaker is suitable for back-feeding (at around 240, 480, and 277 Volts AC, and it can be used in applications like the feeder circuits (brach circuit application), control circuits, heating, air conditioning and refrigeration (HACR), and the high-intensity-discharge circuit applications.



 



The 140U-K3D3-D30 Circuit Breaker has a 3-phase supply voltage rating of 480 Volts AC and a maximum trip current rating of 300 Amps. It has a breaking capacity of 35 Kilo-Amps (KA) at 480 Volts AC input voltage and a UL rated insulation voltage of 600 Volts. This device has a lifespan (mechanical) of about a hundred thousand operations and an electrical lifespan of around ten thousand operations. The 140U-K3D3-D30 Circuit Breaker has protection unit that consists of a fixed thermal and an adjustable magnetic strip. This trip unit provides fixed overload protection via a bimetal element that actuates the trip with a delay based on the set trip value, and it offers instantaneous trip action via an electromagnetic device with adjustable trip ratings. The 140U-K3D3-D30 Circuit Breaker has a fixed thermal rating of 300 Amps and an adjustable magnetic trip rating between 1500 Amps and 3000 Amps. It has an open style design, and it comes with an end cap bolt-on connector.



Technical Description of 140U-K3D3-D30

The Allen-Bradley 140U-K3D3-D30 Circuit Breaker is a UL listed 489 listed Molded Case Circuit Breaker with a K-Frame rating. It has a 35 kilo-Amps (KA) Interrupting Rating at 480 Volts AC and a Continuous Current Rating of 300 Amps.

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

Our highly skilled technicians can repair your 140U-K3D3-D30. 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-K3D3-D30. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

PDF