140G-KTF3-D40

140G-KTF3-D40

Revisions: Ser A 
Description: The 140G-KTF3-D40 trip unit is an adjustable thermal/magnetic circuit breaker trip unit. It has been designed and manufactured by Allen-Bradley/Rockwell Automation as part of the Bulletin 140G series. The adjustable thermal trip range of the 140G-KTF3-D40 trip unit is from 280 to 400 Amps while the adjustable magnetic trip range is from 2000 to 4000 Amps. Additionally, the operating temperature range for this circuit breaker trip unit is from 32 to 104 degrees Fahrenheit or 0 to 40 degrees Celsius. The 140G-KTF3-D40 trip unit fits into a Size K frame to form a complete Bulletin 140G molded case circuit breaker.
Rated 4.8 with 15 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 140G-KTF3-D40 trip unit is an adjustable thermal/magnetic circuit breaker trip unit. It has been designed and manufactured by Allen-Bradley/Rockwell Automation as part of the Bulletin 140G series. The adjustable thermal trip range of the 140G-KTF3-D40 trip unit is from 280 to 400 Amps while the adjustable magnetic trip range is from 2000 to 4000 Amps. Additionally, the operating temperature range for this circuit breaker trip unit is from 32 to 104 degrees Fahrenheit or 0 to 40 degrees Celsius. The 140G-KTF3-D40 trip unit fits into a Size K frame to form a complete Bulletin 140G molded case circuit breaker.

Preowned

Includes a 1-Year DO Supply warranty.

DO Supply is not an authorized distributor for Allen Bradley.

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better business bureau
Revisions: Ser A 

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via UPS, DHL, and TNT
Repairs: We offer repair service for the 140G-KTF3-D40.
Exchange: Exchange credit for your defective unit available.
Conditions: We sell preowned surplus and refurbished parts.

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Rated 4.8 with 15 reviews

    Technical Specifications for 140G-KTF3-D40

ManufacturerEaton Cutler-Hammer
BrandEaton Cutler-Hammer
Part Number/Catalog No.140G-KTF3-D40
Product TypeMolded Case Circuit Breaker
FrameKC
Amps400
Interrupting RatingTrip Unit
Protection TypeAdjust Thermal/ Adjust Magnetic
Current Range400 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Weight7.17 lb
Mechanical Life120 Operations/ hr.
Electrical Life60 Operations/ hr.
ManufacturerEaton Cutler-Hammer
BrandEaton Cutler-Hammer
Part Number/Catalog No.140G-KTF3-D40
Product TypeMolded Case Circuit Breaker
FrameKC
Amps400
Interrupting RatingTrip Unit
Protection TypeAdjust Thermal/ Adjust Magnetic
Current Range400 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Weight7.17 lb
Mechanical Life120 Operations/ hr.
Electrical Life60 Operations/ hr.
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About 140G-KTF3-D40

The Allen-Bradley 140G-KTF3-D40 trip unit is a general-purpose circuit breaker trip unit from the 140G molded case circuit breaker series that is designed for the efficient and cost-effective protection of branch and main circuit applications. The 140G-KTF3-D40 trip unit is a thermal-magnetic trip unit for the K Frame molded case circuit breaker series, and it features adjustable thermal and magnetic trip ratings to accommodate wider applications. The 140G-KTF3-D40 trip unit is a 400 Amps rated trip unit (it is a protection unit only), and it is suitable for a circuit with a maximum operating voltage rating of 600 Volts AC. This trip unit has a thermal trip rating that is adjustable from 280 Amps to 400 Amps, and its magnetic trip rating is also adjustable from 2000 Amps to 4000 Amps to suit a wider application range.



The 140G-KTF3-D40 trip unit is designed with an electromagnet trip element that provides a magnetic field that is proportional to the line current, thus tripping the breaker’s contacts when the line current exceeds the set tripping value. It also has a bimetallic thermal trip element that provides a thermal tripping action by using the proportional relationship between current and heat, thus tripping the breaker’s contact when the ambient temperature reaches the set value. The 140G-KTF3-D40 trip unit has a mechanical lifetime rating of 20,000 operations and a mechanical lifetime rating of up to 4000 operations at 415 Volts AC. This trip unit has a rated withstand voltage value of 8.0 KiloVolts, and a rated insulation voltage value of 800 Volts. The 140G-KTF3-D40 trip unit is rated 80% efficient at 40 degrees Celsius ambient temperature, and it will begin to de-rate at a temperature above this value. Like every 140G circuit breaker and circuit breaker accessory, the 140G-KTF3-D40 trip unit is CCC, CSA, CE, and UL certified.



Technical Description of 140G-KTF3-D40

The Allen-Bradley 140G-KTF3-D40 Molded Case Circuit Breaker has a KC Frame and 400 Amps. It also has a Trip Unit Interrupting Rating and 3 Poles.

Repair Services for 140G-KTF3-D40

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

Our highly skilled technicians can repair your 140G-KTF3-D40. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions for 140G-KTF3-D40

Please refer to the manual for more information about the 140G-KTF3-D40 such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
140G-KTF3-D40 Ser A
140G-KTF3-D40/A, Series A, Rev A Request Quote
Common misspellings:
  • l40G-KTF3-D40
  • 1A0G-KTF3-D40
  • 14oG-KTF3-D40
  • 140G-KTF3-DA0
  • 140G-KTF3-D4o
  • 140GKTF3D40

Dimensions For 140G-KTF3-D40

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 140G-KTF3-D40

Resolutions For 140G-KTF3-D40

About

Technical Specifications for 140G-KTF3-D40

ManufacturerEaton Cutler-Hammer
BrandEaton Cutler-Hammer
Part Number/Catalog No.140G-KTF3-D40
Product TypeMolded Case Circuit Breaker
FrameKC
Amps400
Interrupting RatingTrip Unit
Protection TypeAdjust Thermal/ Adjust Magnetic
Current Range400 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Weight7.17 lb
Mechanical Life120 Operations/ hr.
Electrical Life60 Operations/ hr.
ManufacturerEaton Cutler-Hammer
BrandEaton Cutler-Hammer
Part Number/Catalog No.140G-KTF3-D40
Product TypeMolded Case Circuit Breaker
FrameKC
Amps400
Interrupting RatingTrip Unit
Protection TypeAdjust Thermal/ Adjust Magnetic
Current Range400 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Weight7.17 lb
Mechanical Life120 Operations/ hr.
Electrical Life60 Operations/ hr.

About 140G-KTF3-D40

The Allen-Bradley 140G-KTF3-D40 trip unit is a general-purpose circuit breaker trip unit from the 140G molded case circuit breaker series that is designed for the efficient and cost-effective protection of branch and main circuit applications. The 140G-KTF3-D40 trip unit is a thermal-magnetic trip unit for the K Frame molded case circuit breaker series, and it features adjustable thermal and magnetic trip ratings to accommodate wider applications. The 140G-KTF3-D40 trip unit is a 400 Amps rated trip unit (it is a protection unit only), and it is suitable for a circuit with a maximum operating voltage rating of 600 Volts AC. This trip unit has a thermal trip rating that is adjustable from 280 Amps to 400 Amps, and its magnetic trip rating is also adjustable from 2000 Amps to 4000 Amps to suit a wider application range.



The 140G-KTF3-D40 trip unit is designed with an electromagnet trip element that provides a magnetic field that is proportional to the line current, thus tripping the breaker’s contacts when the line current exceeds the set tripping value. It also has a bimetallic thermal trip element that provides a thermal tripping action by using the proportional relationship between current and heat, thus tripping the breaker’s contact when the ambient temperature reaches the set value. The 140G-KTF3-D40 trip unit has a mechanical lifetime rating of 20,000 operations and a mechanical lifetime rating of up to 4000 operations at 415 Volts AC. This trip unit has a rated withstand voltage value of 8.0 KiloVolts, and a rated insulation voltage value of 800 Volts. The 140G-KTF3-D40 trip unit is rated 80% efficient at 40 degrees Celsius ambient temperature, and it will begin to de-rate at a temperature above this value. Like every 140G circuit breaker and circuit breaker accessory, the 140G-KTF3-D40 trip unit is CCC, CSA, CE, and UL certified.



Technical Description of 140G-KTF3-D40

The Allen-Bradley 140G-KTF3-D40 Molded Case Circuit Breaker has a KC Frame and 400 Amps. It also has a Trip Unit Interrupting Rating and 3 Poles.

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

Our highly skilled technicians can repair your 140G-KTF3-D40. 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 140G-KTF3-D40. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions

Please refer to the manual for more information about the 140G-KTF3-D40 such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
140G-KTF3-D40 Ser A
140G-KTF3-D40/A, Series A, Rev A Request Quote

Common misspellings:
  • l40G-KTF3-D40
  • 1A0G-KTF3-D40
  • 14oG-KTF3-D40
  • 140G-KTF3-DA0
  • 140G-KTF3-D4o
  • 140GKTF3D40
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