140G-KC6F3-D30

Molded Case Ckt-Bkr

Name: Molded Case Ckt-Bkr
Brand: Rockwell Automation
SKU: 140g-kc6f3-d30

Serial #:

Lifecycle status: Active

Description

140G - Molded Case Circuit Breaker, KC frame (current limiting), 65 kA Interrupt Rating, T/M - Thermal Magnetic, 3 Poles, Rated Current 300 A

Lifecycle status: Active

Description

140G - Molded Case Circuit Breaker, KC frame (current limiting), 65 kA Interrupt Rating, T/M - Thermal Magnetic, 3 Poles, Rated Current 300 A

Unique Product Identifier	140G-KC6F3-D30
UPC	889508767840
Estimated Lead Time	29 days
Standard Warranty Duration	1 year See details
Country of Origin	Italy

Ambient temperature without derating	104 °F
Depth	108.5 mm
Operational voltage (Ue)	90% @ 3000 metre (9840 ft) altitude
Rated uninterrupted current (Iu)	98% @ 3000 metre (9840 ft) altitude
Storage temperature	-40 °F
Width	140 mm
Wire temperature rating	Al or Cu 75 °C

Complete device with protection unit	True
Electrical life cycle	7000 (400 A)/5000 (600 A) ops @ 415V AC
Frame size	400 A
Insulation voltage	Rated 1000V per IEC
Integrated earth fault protection	False
Intermediate point (I2t)	2.8x10³ @ rated current up to 400 A, rated voltage 480V AC
Intermediate point (Ip)	43.9 kA @ rated current up to 400 A, rated voltage 480V AC
Intermediate point (Irms)	65 kA @ rated current up to 400 A, rated voltage 480V AC
Interrupting rating (I2t)	3x10³ @ rated current up to 400 A, rated voltage 600V AC
Interrupting rating (Ip)	47.3 kA @ rated current up to 400 A, rated voltage 480V AC
Interrupting rating (Irms)	65 kA @ rated current up to 400 A, rated voltage 600V AC
Interrupting rating per UL 489/CSA C22.2, No. 5	65kA @ 480V, 50/60 Hz
Magnetic trip current (Im)	1500 A
Motor drive integrated	False
Motor drive optional	True
Number of poles	3
Position of connection for main current circuit	Front side
Protection type	T/M-adjustable thermal/adjustable magnetic TMA
Rated impulse withstand voltage (Uimp)	8 kV
Rated permanent current Iu	300 A
Rated service short-circuit breaking capacity (Ics(% Icu)) per IEC 60947-2 rating	100% @ 690V AC, 50/60 Hz
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz	70 kA
Rated ultimate short-circuit breaking capacity (Icu) per IEC 60947-2 rating	70kA @ 400...415V AC, 50/60 Hz
Thermal trip current (Ir)	210 A
Threshold current (I2t)	1.5x10³ @ rated current up to 400 A, rated voltage 600V AC
Threshold current (Ip)	21 kA @ rated current up to 400 A, rated voltage 600V AC
Threshold current (Irms)	10 kA @ rated current up to 400 A, rated voltage 600V AC
Type of control element	Toggle
Type of electrical connection of main circuit	Screw connection
With integrated under voltage release	False
With switched-off indicator	False

Mechanical

DIN rail (top hat rail) mounting optional	True
Degree of protection (IP)	IP40
Factory option	None
Mechanical life operations	240 /h
Suitable for DIN rail (top hat rail) mounting	False
Weight	7.17 lb

Construction

Device construction	Built-in device fixed built-in technique
Height	205 mm

Drawings
3-Dimensional STEP model (STP)	Download (ZIP)
2-Dimensional Drawing (PDF)	Download (PDF)
Product Drawing	Drawing (DXF)

Drawings
3-Dimensional STEP model (STP) Download (ZIP)
2-Dimensional Drawing (PDF) Download (PDF)
Product Drawing Drawing (DXF)

Click the Download CAD button below to view all file formats available for download.

General	Publication
Specifications and Technical Data	140G-TD101
Link to Literature Library for Selectivity Guide	140G-TD050
Link to Literature Library for Installation Instructions	140G-IN021
Product Cutsheet	--
Breaker Wars: MCCB vs MPCB vs MCP vs MCB Podcast	--

Technical Data	Publication
140g-td102_-en-p	140G-TD102

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UKCA DOC

This product was certified with the above certifications as of 2026-10-02. Products sold before or after this date might carry different certifications. Please review the product label to check for the certifications your specific product carries.

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Regulatory Information

EU Importer Address	Rockwell Automation N.V Pegasus Park De Kleetlaan 12A 1831 Diegem Belgium
EU Authorized Representative Address	Rockwell Automation N.V Pegasus Park De Kleetlaan 12A 1831 Diegem Belgium

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Technotes

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Overview

Unique Product Identifier	140G-KC6F3-D30
UPC	889508767840
Estimated Lead Time	29 days
Standard Warranty Duration	1 year See details
Country of Origin	Italy

Compliance & Environment

Ambient temperature without derating	104 °F
Depth	108.5 mm
Operational voltage (Ue)	90% @ 3000 metre (9840 ft) altitude
Rated uninterrupted current (Iu)	98% @ 3000 metre (9840 ft) altitude
Storage temperature	-40 °F
Width	140 mm
Wire temperature rating	Al or Cu 75 °C

Electrical & Connectivity

Complete device with protection unit	True
Electrical life cycle	7000 (400 A)/5000 (600 A) ops @ 415V AC
Frame size	400 A
Insulation voltage	Rated 1000V per IEC
Integrated earth fault protection	False
Intermediate point (I2t)	2.8x10³ @ rated current up to 400 A, rated voltage 480V AC
Intermediate point (Ip)	43.9 kA @ rated current up to 400 A, rated voltage 480V AC
Intermediate point (Irms)	65 kA @ rated current up to 400 A, rated voltage 480V AC
Interrupting rating (I2t)	3x10³ @ rated current up to 400 A, rated voltage 600V AC
Interrupting rating (Ip)	47.3 kA @ rated current up to 400 A, rated voltage 480V AC
Interrupting rating (Irms)	65 kA @ rated current up to 400 A, rated voltage 600V AC
Interrupting rating per UL 489/CSA C22.2, No. 5	65kA @ 480V, 50/60 Hz
Magnetic trip current (Im)	1500 A
Motor drive integrated	False
Motor drive optional	True
Number of poles	3
Position of connection for main current circuit	Front side
Protection type	T/M-adjustable thermal/adjustable magnetic TMA
Rated impulse withstand voltage (Uimp)	8 kV
Rated permanent current Iu	300 A
Rated service short-circuit breaking capacity (Ics(% Icu)) per IEC 60947-2 rating	100% @ 690V AC, 50/60 Hz
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz	70 kA
Rated ultimate short-circuit breaking capacity (Icu) per IEC 60947-2 rating	70kA @ 400...415V AC, 50/60 Hz
Thermal trip current (Ir)	210 A
Threshold current (I2t)	1.5x10³ @ rated current up to 400 A, rated voltage 600V AC
Threshold current (Ip)	21 kA @ rated current up to 400 A, rated voltage 600V AC
Threshold current (Irms)	10 kA @ rated current up to 400 A, rated voltage 600V AC
Type of control element	Toggle
Type of electrical connection of main circuit	Screw connection
With integrated under voltage release	False
With switched-off indicator	False

Physical Characteristics

Mechanical

DIN rail (top hat rail) mounting optional	True
Degree of protection (IP)	IP40
Factory option	None
Mechanical life operations	240 /h
Suitable for DIN rail (top hat rail) mounting	False
Weight	7.17 lb

Construction

Device construction	Built-in device fixed built-in technique
Height	205 mm

Drawings

Drawings
3-Dimensional STEP model (STP)	Download (ZIP)
2-Dimensional Drawing (PDF)	Download (PDF)
Product Drawing	Drawing (DXF)

Drawings
3-Dimensional STEP model (STP) Download (ZIP)
2-Dimensional Drawing (PDF) Download (PDF)
Product Drawing Drawing (DXF)

Click the Download CAD button below to view all file formats available for download.

Documents

Specifications and Technical Data General
140G-TD101

Link to Literature Library for Selectivity Guide General
140G-TD050

Link to Literature Library for Installation Instructions General
140G-IN021

Product Cutsheet General
--

Breaker Wars: MCCB vs MPCB vs MCP vs MCB Podcast General
--

140g-td102_-en-p Technical Data
140G-TD102

General	Publication
Specifications and Technical Data	140G-TD101
Link to Literature Library for Selectivity Guide	140G-TD050
Link to Literature Library for Installation Instructions	140G-IN021
Product Cutsheet	--
Breaker Wars: MCCB vs MPCB vs MCP vs MCB Podcast	--
Technical Data	Publication
140g-td102_-en-p	140G-TD102

Looking for more documentation?

Find curated technical documentation for this product in the Technical Documentation Center, or search our full Literature Library.

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Certifications

${name=UKCA DOC, link=http://literature.rockwellautomation.com/idc/groups/literature/documents/ct/140g-ct051_-en-e.pdf}$

UKCA DOC

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Regulatory Information

EU Importer Address	Rockwell Automation N.V Pegasus Park De Kleetlaan 12A 1831 Diegem Belgium
EU Authorized Representative Address	Rockwell Automation N.V Pegasus Park De Kleetlaan 12A 1831 Diegem Belgium

Accessories

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Technotes

Technotes

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