NEMA 3 Phase Non-Reversing Starter

Catalog #: 509-COB-90

Lifecycle status: Active

Lifecycle status: Active

Number of auxiliary contacts as normally open contact	1
Number of indicator lights	0
Voltage type for actuating	AC
With transformer	No
Suitable for emergency stop	Yes
External reset possible	Yes
With short-circuit release	Yes
With fuse	No
Rated control supply voltage at AC 50 Hz	440
Rated control supply voltage at AC 60 Hz	480
Release class	CLASS 30
Type of motor starter	Direct online starter (DOL)
Service limit current rating	52
Continuous current	45
Circuit closing inrush current peak including offset, max	483
Heat dissipation	5.9 W (4...5 poles)
Coil operating limits	85...110% (4...5 poles)
Operating volt amperes burden	Sealed: 38VA, 60 Hz coils (4...5 poles)
Hp rating, max	7.5Hp @ 230V load voltage, 1-phase (non-plugging and non-jogging duty)
Transformer primary switching kVA rating	8.9 kVA @ 575V load voltage, 3-phase (inrush current = 20...40 times continuous current)
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)
Factory installed models	1 NO auxiliary contact on the contactor
Temperature compensated overload protection	Yes
Coordination class according to IEC 60947-4-3	Class 2
Type of electrical connection of main circuit	Screw connection
Type of electrical connection for auxiliary- and control current circuit	Screw connection

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

Required torque on power terminal wire clamps and pressure connectors or lugs	45
Auxiliary contact material	Silver
Type of power terminal	Pressure terminals
Wire size	For power terminals: 14...4 AWG
Enclosure	Open type
Power contact material	Silver Alloy
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

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

Type	Resource	Publication
General	Product Cutsheet	--
General	Short Circuit Ratings Data Sheet	--
General	Repair Parts List	--

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Technical Specifications

Number of auxiliary contacts as normally open contact	1
Number of indicator lights	0
Voltage type for actuating	AC
With transformer	No
Suitable for emergency stop	Yes
External reset possible	Yes
With short-circuit release	Yes
With fuse	No
Rated control supply voltage at AC 50 Hz	440
Rated control supply voltage at AC 60 Hz	480
Release class	CLASS 30
Type of motor starter	Direct online starter (DOL)
Service limit current rating	52
Continuous current	45
Circuit closing inrush current peak including offset, max	483
Heat dissipation	5.9 W (4...5 poles)
Coil operating limits	85...110% (4...5 poles)
Operating volt amperes burden	Sealed: 38VA, 60 Hz coils (4...5 poles)
Hp rating, max	7.5Hp @ 230V load voltage, 1-phase (non-plugging and non-jogging duty)
Transformer primary switching kVA rating	8.9 kVA @ 575V load voltage, 3-phase (inrush current = 20...40 times continuous current)
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)
Factory installed models	1 NO auxiliary contact on the contactor
Temperature compensated overload protection	Yes
Coordination class according to IEC 60947-4-3	Class 2
Type of electrical connection of main circuit	Screw connection
Type of electrical connection for auxiliary- and control current circuit	Screw connection

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

Required torque on power terminal wire clamps and pressure connectors or lugs	45
Auxiliary contact material	Silver
Type of power terminal	Pressure terminals
Wire size	For power terminals: 14...4 AWG
Enclosure	Open type
Power contact material	Silver Alloy
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

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

Drawings

Documents

Product Cutsheet General
--

Short Circuit Ratings Data Sheet General
--

Repair Parts List General
--

Type	Resource	Publication
General	Product Cutsheet	--
General	Short Circuit Ratings Data Sheet	--
General	Repair Parts List	--

Looking for more documentation?

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

Alternative Products

Items Per Page:

Technotes

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