300-COB930

NEMA Size 2 300 AC Contactor

Name: NEMA Size 2 300 AC Contactor
Brand: Rockwell Automation
SKU: 300-COB930

Serial #:

Lifecycle status: Discontinued

Rockwell Automation announces that as of June 30, 2026, the NEMA Size 2 300 AC Contactor will be discontinued and no longer available for sale. Customers are encouraged to remove references to the affected product(s)

Discontinued Date: June 30, 2026 Replacement Category: Functional Replacement

Description

300 NEMA Contactor, Size 2, 480V 60Hz / 440V 50Hz, 3 Poles, 1 N.O. Auxiliary Contact included, Screw Terminals

Lifecycle status: Discontinued

Discontinued Date: June 30, 2026 Replacement Category: Functional Replacement

Description

300 NEMA Contactor, Size 2, 480V 60Hz / 440V 50Hz, 3 Poles, 1 N.O. Auxiliary Contact included, Screw Terminals

Unique Product Identifier	300-COB930
UPC	662468853828
Standard Warranty Duration	1 year See details
Country of Origin	Switzerland

Mounting	Open Style

Coil voltage	440V 50 Hz/480V 60 Hz
Conductor size	25 mm²
DIN fuses (gG) current rating	Type 2 (IEC 60947-4-1): 40A @ 690V, 60 kA available fault current
Definite purpose rating	LRA: 360 A @ 440-480V AC (3-phase), UL/CSA HVAC applications
Electromagnetic compatibility	IEC 60947-1 - Environment A
General purpose current (enclosed)	34A @ 600V per UL/CSA
Hp rating, max	25Hp @ 575V (60 Hz), 3-phase (Full-load current must not exceed continuous Aere)
Insulation class of the coil	Class F per IEC 60947-4-1
MCCB current rating	Type 2 (IEC 60947-4-1): 520A @ 400V, 70 kA available fault current
Main current circuit resistance	0.21 mΩ, 3-pole
NEMA size	Size 2
Number of power poles	Three pole + 1 NO auxiliary hold-in contact
Operating limits, dropout	≤0.60 x Us @ DC control
Operating limits, pick-up	(0.85...1.1) x Us @ 50/60 Hz
Operating time, closing delay	42...100 ms (Standard coil)
Operating time, opening delay	17...100 ms (Standard coil)
Power dissipation	7 W per pole @ 400V, AC-1, Ie (3 pole)
Rated control supply voltage at AC 50 Hz	440 V
Rated control supply voltage at AC 60 Hz	480 V
Rated impulse voltage withstand (Uimp)	6 kV
Rated isolation voltage (Ui)	690V per IEC
Rated operational current (Ie)	70A @ 690V, AC-1 (50/60 Hz), ambient temperature 40 °C
Rated operational current (enclosed)	42 A @ 220-240V, 3-phase per UL/CSA
Rated operational power (Pe)	84 kW @ 690V, AC-1 (50/60 Hz), ambient temperature 40 °C
Rated operational power (enclosed)	7.5Hp @ 240V, 1-phase per UL/CSA
Rated voltage (Ue)	24, 48, 110, 220, 440V DC
Short time withstand (Icw)	3-Poles: 600A @ 10s, 40 °C
Standard coil, hold-in	4VA/2 W @ 48...130V AC/DC
Standard coil, pick-up	25VA/25 W @ 48...130V AC/DC
Switching of DC loads	3-Poles in series: 70A @ 220V (Shunt-wound Motors-Starting, reverse current breaking, reversing, stepping DC-3 at 60 °C)
Switching of lighting loads	Tungsten lA, 3-phase (break all lines) (UL/CSA): 65A @ 600V
Switching of power transformers	Apparent power: 87 kVA @ 600V, AC-6a @ 60Hz (n = 15)
Total power dissipation	10.1 W @ 400V, AC-3, Ie, AC/DC control (120-250V), 3 pole
Type of electrical connection of main circuit	Screw connection
UL class J and CSA HRCI-J fuses rating	Type 1 combination (UL60947 and CSA 22.2 No.14): 150A @ 600V, 100 kA available fault current
UL class RK5 fuses rating	Type 1 combination (UL60947 and CSA 22.2 No.14): 150A @ 600V, 5 kA available fault current
UL inverse-time circuit breaker	Type 1 combination (UL60947 and CSA 22.2 No.14): 250A @ 600V, 5 kA available fault current
Voltage type for actuating	AC

Altitude, max	3000 m
Ambient temperature	Storage: -60...80 °C (-76...176 °F)
Climatic withstand	Category B according to IEC 60947-1, Annex Q

Mechanical

Conductor cross section	Main contacts, 2 conductor: 6...35 mm²
Number of auxiliary contacts as normally open contact	1
Protection class	Contactor main contacts: IP2X
Recommended torque	Main contacts: 4 Nm
Shock resistance	IEC 60068-2-27
Switching frequency, max	600 cycles/h, AC-1
Vibration resistance	IEC 60068-2-6
Weight	AC/DC (Electronic): 0.98 kg (2.16 lbs.)

Construction

Depth	4.17 mm
Enclosure	Open Type
Height	3.19 mm
Lug	No built-in lug
Width	2.48 mm

Drawings
Dimensions Drawing (PDF)	Download (PDF)
3D STEP Model (STP)	Download (ZIP)
Product Drawing	Drawing (DXF)

Drawings
Dimensions Drawing (PDF) Download (PDF)
3D STEP Model (STP) Download (ZIP)
Product Drawing Drawing (DXF)

General	Publication
Product Cutsheet	--
Specification Sheet	--
Circuit Protection Design and SCCR Tables	--

Technical Data	Publication
300-td003_-en-p	300-TD003

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SUVA LVD Type Approval

This product was certified with the above certifications as of 2026-07-17. 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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Overview

Unique Product Identifier	300-COB930
UPC	662468853828
Standard Warranty Duration	1 year See details
Country of Origin	Switzerland

Electrical & Connectivity

Mounting	Open Style

Coil voltage	440V 50 Hz/480V 60 Hz
Conductor size	25 mm²
DIN fuses (gG) current rating	Type 2 (IEC 60947-4-1): 40A @ 690V, 60 kA available fault current
Definite purpose rating	LRA: 360 A @ 440-480V AC (3-phase), UL/CSA HVAC applications
Electromagnetic compatibility	IEC 60947-1 - Environment A
General purpose current (enclosed)	34A @ 600V per UL/CSA
Hp rating, max	25Hp @ 575V (60 Hz), 3-phase (Full-load current must not exceed continuous Aere)
Insulation class of the coil	Class F per IEC 60947-4-1
MCCB current rating	Type 2 (IEC 60947-4-1): 520A @ 400V, 70 kA available fault current
Main current circuit resistance	0.21 mΩ, 3-pole
NEMA size	Size 2
Number of power poles	Three pole + 1 NO auxiliary hold-in contact
Operating limits, dropout	≤0.60 x Us @ DC control
Operating limits, pick-up	(0.85...1.1) x Us @ 50/60 Hz
Operating time, closing delay	42...100 ms (Standard coil)
Operating time, opening delay	17...100 ms (Standard coil)
Power dissipation	7 W per pole @ 400V, AC-1, Ie (3 pole)
Rated control supply voltage at AC 50 Hz	440 V
Rated control supply voltage at AC 60 Hz	480 V
Rated impulse voltage withstand (Uimp)	6 kV
Rated isolation voltage (Ui)	690V per IEC
Rated operational current (Ie)	70A @ 690V, AC-1 (50/60 Hz), ambient temperature 40 °C
Rated operational current (enclosed)	42 A @ 220-240V, 3-phase per UL/CSA
Rated operational power (Pe)	84 kW @ 690V, AC-1 (50/60 Hz), ambient temperature 40 °C
Rated operational power (enclosed)	7.5Hp @ 240V, 1-phase per UL/CSA
Rated voltage (Ue)	24, 48, 110, 220, 440V DC
Short time withstand (Icw)	3-Poles: 600A @ 10s, 40 °C
Standard coil, hold-in	4VA/2 W @ 48...130V AC/DC
Standard coil, pick-up	25VA/25 W @ 48...130V AC/DC
Switching of DC loads	3-Poles in series: 70A @ 220V (Shunt-wound Motors-Starting, reverse current breaking, reversing, stepping DC-3 at 60 °C)
Switching of lighting loads	Tungsten lA, 3-phase (break all lines) (UL/CSA): 65A @ 600V
Switching of power transformers	Apparent power: 87 kVA @ 600V, AC-6a @ 60Hz (n = 15)
Total power dissipation	10.1 W @ 400V, AC-3, Ie, AC/DC control (120-250V), 3 pole
Type of electrical connection of main circuit	Screw connection
UL class J and CSA HRCI-J fuses rating	Type 1 combination (UL60947 and CSA 22.2 No.14): 150A @ 600V, 100 kA available fault current
UL class RK5 fuses rating	Type 1 combination (UL60947 and CSA 22.2 No.14): 150A @ 600V, 5 kA available fault current
UL inverse-time circuit breaker	Type 1 combination (UL60947 and CSA 22.2 No.14): 250A @ 600V, 5 kA available fault current
Voltage type for actuating	AC

Compliance & Environment

Altitude, max	3000 m
Ambient temperature	Storage: -60...80 °C (-76...176 °F)
Climatic withstand	Category B according to IEC 60947-1, Annex Q

Physical Characteristics

Mechanical

Conductor cross section	Main contacts, 2 conductor: 6...35 mm²
Number of auxiliary contacts as normally open contact	1
Protection class	Contactor main contacts: IP2X
Recommended torque	Main contacts: 4 Nm
Shock resistance	IEC 60068-2-27
Switching frequency, max	600 cycles/h, AC-1
Vibration resistance	IEC 60068-2-6
Weight	AC/DC (Electronic): 0.98 kg (2.16 lbs.)

Construction

Depth	4.17 mm
Enclosure	Open Type
Height	3.19 mm
Lug	No built-in lug
Width	2.48 mm

Drawings

Drawings
Dimensions Drawing (PDF)	Download (PDF)
3D STEP Model (STP)	Download (ZIP)
Product Drawing	Drawing (DXF)

Drawings
Dimensions Drawing (PDF) Download (PDF)
3D STEP Model (STP) Download (ZIP)
Product Drawing Drawing (DXF)

Documents

Product Cutsheet General
--

Specification Sheet General
--

Circuit Protection Design and SCCR Tables General
--

300-td003_-en-p Technical Data
300-TD003

General	Publication
Product Cutsheet	--
Specification Sheet	--
Circuit Protection Design and SCCR Tables	--
Technical Data	Publication
300-td003_-en-p	300-TD003

Looking for more documentation?

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

Search the Literature Library

Certifications

SUVA LVD Type Approval

Looking for certification documents?
Explore certifications for this product and more in our comprehensive Literature Library.

Search the Literature Library

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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