505-BOB

NEMA Size 1 Reversing Starter

Name: NEMA Size 1 Reversing Starter
Brand: Rockwell Automation
SKU: 505-BOB

Serial #:

Lifecycle status: Discontinued

Rockwell Automation announces that as of April 01, 2026, the NEMA Size 1 Reversing Starter will be discontinued and no longer available for sale. Customers are encouraged to remove references to the affected product(s)

Discontinued Date: April 01, 2026 Replacement Category: Engineering Replacement

Description

505 NEMA Full Voltage Reversing Starter ,SIZE 1, Open, 460-480V 60Hz, with Eutectic Alloy Overload Relay, , 460-480V 60Hz, ,

Lifecycle status: Discontinued

Discontinued Date: April 01, 2026 Replacement Category: Engineering Replacement

Description

505 NEMA Full Voltage Reversing Starter ,SIZE 1, Open, 460-480V 60Hz, with Eutectic Alloy Overload Relay, , 460-480V 60Hz, ,

Unique Product Identifier	505-BOB
UPC	662072181331
Standard Warranty Duration	1 year See details
Country of Origin	Mexico

Sub Brand	NEMA

Capacitor switching kVAR	6 kVAR @ 230V, 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	288 A
Coil operating limits	85...110%
Coil voltage	120V AC @ 60Hz (transformer control)
Continuous current	27 A
External reset possible	True
Heat dissipation	5.9 W
Hp rating, max	7.5Hp @ 230V load voltage, 3-phase (non-plugging and non-jogging duty)
Operating volt amperes burden	Sealed: 38VA, 60 Hz coils (4...5 poles)
Rated control supply voltage at AC 60 Hz	460 V
Service limit current rating	32 A
Suitable for emergency stop	True
Transformer primary switching kVA rating	8.5 kVA @ 460V load voltage, 3-phase (inrush current ≤20 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	Reversing starter
Voltage type for actuating	AC
With short-circuit release	True

Altitude	10000 ft before derating
Corrosion-resistance	All metal parts are treated for corrosion-resistance
NEMA size	Size 1
Operating position	Vertical
Operating temperature	Starters with eutectic alloy overload relay (provided condensation is prevented): -13...149 °F (-25...65 °C)
Overload relay	Eutectic alloy overload relay

Mechanical

Enclosure type	Open
Mechanical life operations	5000000
Number of auxiliary contacts, max	8
Operating time, drop-out	13 ms
Operating time, pick-up	37 ms

Construction

Auxiliary contact material	Silver
Power contact material	Silver alloy
Required torque on power terminal wire clamps and pressure connectors or lugs	150 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: 8...1 AWG

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

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Overview

Unique Product Identifier	505-BOB
UPC	662072181331
Standard Warranty Duration	1 year See details
Country of Origin	Mexico

Electrical & Connectivity

Sub Brand	NEMA

Capacitor switching kVAR	6 kVAR @ 230V, 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	288 A
Coil operating limits	85...110%
Coil voltage	120V AC @ 60Hz (transformer control)
Continuous current	27 A
External reset possible	True
Heat dissipation	5.9 W
Hp rating, max	7.5Hp @ 230V load voltage, 3-phase (non-plugging and non-jogging duty)
Operating volt amperes burden	Sealed: 38VA, 60 Hz coils (4...5 poles)
Rated control supply voltage at AC 60 Hz	460 V
Service limit current rating	32 A
Suitable for emergency stop	True
Transformer primary switching kVA rating	8.5 kVA @ 460V load voltage, 3-phase (inrush current ≤20 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	Reversing starter
Voltage type for actuating	AC
With short-circuit release	True

Compliance & Environment

Altitude	10000 ft before derating
Corrosion-resistance	All metal parts are treated for corrosion-resistance
NEMA size	Size 1
Operating position	Vertical
Operating temperature	Starters with eutectic alloy overload relay (provided condensation is prevented): -13...149 °F (-25...65 °C)
Overload relay	Eutectic alloy overload relay

Physical Characteristics

Mechanical

Enclosure type	Open
Mechanical life operations	5000000
Number of auxiliary contacts, max	8
Operating time, drop-out	13 ms
Operating time, pick-up	37 ms

Construction

Auxiliary contact material	Silver
Power contact material	Silver alloy
Required torque on power terminal wire clamps and pressure connectors or lugs	150 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: 8...1 AWG

Documents

Technical Document General
500-TD014

Product Cutsheet General
--

Selection Guide General
500-SG008

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

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