509-COB-91

NEMA 3 Phase Non-Reversing Starter

Name: NEMA 3 Phase Non-Reversing Starter
Brand: Rockwell Automation
SKU: 509-COB-91

Serial #:

Lifecycle status: Active

Description

NEMA Full Voltage Non-Reversing Starter,SIZE 2,460-480V 60Hz,Open Type Without Enclosure, with Eutectic Alloy Overload Relay

Lifecycle status: Active

Description

NEMA Full Voltage Non-Reversing Starter,SIZE 2,460-480V 60Hz,Open Type Without Enclosure, with Eutectic Alloy Overload Relay

Unique Product Identifier	509-COB-91
UPC	662468307871
Estimated Lead Time	42 days
Standard Warranty Duration	1 year See details
Country of Origin	Mexico

Sub Brand	NEMA

Capacitor switching kVAR	31 kVAR @ 575V, 3-phase (If maximum available current (at capacitor terminals) is greater than 3000 A, contact your local Rockwell Automation sales office, Allen-Bradley distributor, or NEMA ICS-2 standard)
Circuit closing inrush current peak including offset, max	483 A
Coil operating limits	85...110% (4...5 poles)
Continuous current	45 A
Coordination class according to IEC 60947-4-3	Class 2
External reset possible	True
Factory installed models	1 NC auxiliary contact on the contactor
Heat dissipation	5.9 W (4...5 poles)
Hp rating, max	7.5Hp @ 230V load voltage, 1-phase (non-plugging and non-jogging duty)
Number of auxiliary contacts as normally closed contact	1
Number of indicator lights	0
Operating volt amperes burden	Sealed: 38VA, 60 Hz coils (4...5 poles)
Rated control supply voltage at AC 50 Hz	440 V
Rated control supply voltage at AC 60 Hz	480 V
Release class	CLASS 30
Service limit current rating	52 A
Suitable for emergency stop	True
Temperature compensated overload protection	True
Transformer primary switching kVA rating	8.9 kVA @ 575V load voltage, 3-phase (inrush current = 20...40 times continuous current)
Type of electrical connection for auxiliary- and control current circuit	Screw connection
Type of electrical connection of main circuit	Screw connection
Type of motor starter	Direct online starter (DOL)
Voltage type for actuating	AC
With fuse	False
With short-circuit release	True
With transformer	False

Altitude	10000 ft before derating
Corrosion-resistance	All metal parts are treated for corrosion-resistance
NEMA size	Size 2
Operating position	Vertical
Operating temperature	65 °C
Overload relay	Eutectic alloy overload relay

Mechanical

Average operating time, drop-out	13 ms
Average operating time, pick-up	27 ms
Mechanical life operations	1.0E7
Number of auxiliary contacts, max	8
Rail mounting possible	True

Construction

Auxiliary contact material	Silver
Enclosure	Open type
Power contact material	Silver Alloy
Required torque on power terminal wire clamps and pressure connectors or lugs	45 in-lb
Requirements for sizing of wire	All wire rated 167 °F (75 °C) or higher must be sized per the local electrical code for 167 °F (75 °C) wire
Type of power terminal	Pressure terminals
Wire size	For power terminals: 14...4 AWG

General	Publication
Technical Document	500-TD014
Selection Guide	500-SG008
Product Cutsheet	--

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Overview

Unique Product Identifier	509-COB-91
UPC	662468307871
Estimated Lead Time	42 days
Standard Warranty Duration	1 year See details
Country of Origin	Mexico

Electrical & Connectivity

Sub Brand	NEMA

Capacitor switching kVAR	31 kVAR @ 575V, 3-phase (If maximum available current (at capacitor terminals) is greater than 3000 A, contact your local Rockwell Automation sales office, Allen-Bradley distributor, or NEMA ICS-2 standard)
Circuit closing inrush current peak including offset, max	483 A
Coil operating limits	85...110% (4...5 poles)
Continuous current	45 A
Coordination class according to IEC 60947-4-3	Class 2
External reset possible	True
Factory installed models	1 NC auxiliary contact on the contactor
Heat dissipation	5.9 W (4...5 poles)
Hp rating, max	7.5Hp @ 230V load voltage, 1-phase (non-plugging and non-jogging duty)
Number of auxiliary contacts as normally closed contact	1
Number of indicator lights	0
Operating volt amperes burden	Sealed: 38VA, 60 Hz coils (4...5 poles)
Rated control supply voltage at AC 50 Hz	440 V
Rated control supply voltage at AC 60 Hz	480 V
Release class	CLASS 30
Service limit current rating	52 A
Suitable for emergency stop	True
Temperature compensated overload protection	True
Transformer primary switching kVA rating	8.9 kVA @ 575V load voltage, 3-phase (inrush current = 20...40 times continuous current)
Type of electrical connection for auxiliary- and control current circuit	Screw connection
Type of electrical connection of main circuit	Screw connection
Type of motor starter	Direct online starter (DOL)
Voltage type for actuating	AC
With fuse	False
With short-circuit release	True
With transformer	False

Compliance & Environment

Altitude	10000 ft before derating
Corrosion-resistance	All metal parts are treated for corrosion-resistance
NEMA size	Size 2
Operating position	Vertical
Operating temperature	65 °C
Overload relay	Eutectic alloy overload relay

Physical Characteristics

Mechanical

Average operating time, drop-out	13 ms
Average operating time, pick-up	27 ms
Mechanical life operations	1.0E7
Number of auxiliary contacts, max	8
Rail mounting possible	True

Construction

Auxiliary contact material	Silver
Enclosure	Open type
Power contact material	Silver Alloy
Required torque on power terminal wire clamps and pressure connectors or lugs	45 in-lb
Requirements for sizing of wire	All wire rated 167 °F (75 °C) or higher must be sized per the local electrical code for 167 °F (75 °C) wire
Type of power terminal	Pressure terminals
Wire size	For power terminals: 14...4 AWG

Documents

Technical Document General
500-TD014

Selection Guide General
500-SG008

Product Cutsheet General
--

General	Publication
Technical Document	500-TD014
Selection Guide	500-SG008
Product Cutsheet	--

Looking for more documentation?

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

Visit the Technical Documentation Center Search the Literature Library

Accessories

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Technotes

Technotes

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