Catalogs > Industrial Controls Catalog > Motor Control, NEMA > Contactors, Starters, and Overload Relays > AC Contactors and Starters > Bulletin 520 Multi-Speed

Bulletin 520 Multi-Speed

Introduction

Standards Compliance and Certifications

Catalog Number Explanation

Product Selection

Typical Wiring Diagrams

Modifications for Non-Combination Devices

Accessories

Specifications

Full Load Motor Currents

Approximate Dimensions

Renewal Parts

Your order must include: 1) Cat. no. of the starter selected, 2) motor connection diagram, 3) if required, cat. no. of any accessories, 4) specify whether motor is Constant Torque, Variable Torque, or Constant Horsepower, 5) heater elements for eutectic alloy overload voltages are not included and must be ordered as a separate cat. no. located on Eutectic Alloy Overload Relay Heater Elements, and 6) overload relay code for solid-state overload relays. See Starters Without Overload Relays for Field Assembly of Starters Using Bulletin 592 Overload Relays ª v ª ¹¹.

Product Selection

520E NEMA 2 Speed Separate Winding Starter

Build a Catalog Number

520F NEMA 2 Speed Con/Var Torque Starter

Build a Catalog Number

520G NEMA 2 Speed Constant HP Starter

Build a Catalog Number

2-Speed Separate Winding, 3-Pole — 3-Pole, Constant or Variable Torque

Heater Elements — Starters with eutectic alloy overload relays require 3 heater elements for each speed. See Eutectic Alloy Overload Relay Heater Elements for heater element selection tables.

3-Phase Ÿ 600V AC Maximum Ÿ 60 Hz Ÿ With 3-Pole Overload Protection
NEMA Size	Continuous Ampere Rating [A]	Maximum Horsepower Rating Full Load Current Must Not Exceed “Continuous Ampere Rating”				Open Type Without Enclosure	Type 1 General Purpose Enclosure Surface Mounting	Type 3R/12 Rainproof, Dusttight Industrial Use Enclosure
		Motor Voltage
		200V	230V	50 Hz	460…575V
		200V	230V	380…415V	460…575V	Cat. No.¬ T	Cat. No.¬	Cat. No.¬
0	18	3	3	5	5	520E-AOÄ-µ-µ	520E-AAÄ-µ-µ	520E-AJÄ-µ-µ
1	27	7-1/2	7-1/2	10	10	520E-BOÄ-µ-µ	520E-BAÄ-µ-µ	520E-BJÄ-µ-µ
2	45	10	15	25	25	520E-COÄ-µ-µ	520E-CAÄ-µ-µ	520E-CJÄ-µ-µ
3	90	25	30	50	50	520E-DOÄ-µ-µ	520E-DAÄ-µ-µ	520E-DJÄ-µ-µ
4	135	40	50	75	100	520E-EOÄ-µ-µ	520E-EAÄ-µ-µ	520E-EJÄ-µ-µ
5	270	75	100	150	200	520E-FOÄ-µ-µ	520E-FAÄ-µ-µ	520E-FJÄ-µ-µ
6‡	540	150	200	300	400	520E-GOÄ-µ-µ	—	—
7‡	810	—	300	600	600	520E-HOÄ-µ-µ	—	—

Ä Coil Voltage Code

The cat. no. as listed is incomplete. Select a coil voltage code from the table below to complete the cat. no. Example: Cat. No. 520E-AAÄ-µ-µ becomes Cat. No. 520E-AAD-µ-µ. For other voltages, please consult your local Rockwell Automation sales office or Allen‑Bradley distributor.

[V]		24§	110- 115	115- 120	200- 208	220- 230	230- 240	240	277	380	380- 400	415	440- 460	460- 480	500	550	575- 600
Common Control	AC, 50 Hz	—	—	—	—	Pª	—	T	—	N	KN	I	Q	—	M	R	—
Common Control	AC, 60 Hz	—	—	—	H	—	Av	—	—	—	—	U	—	B	—	—	C
Transformer Control§	AC, 60 Hz	—	—	—	H	—	A	—	—	—	—	—	—	B	—	—	C
Separate Control (without transformer)	AC, 50 Hz	K	SØ	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Separate Control (without transformer)	AC, 60 Hz	J	—	Dz	—	—	—	—	F	—	—	—	—	—	—	—	—

¬ These starters are for wye connected motor windings. They may not be used with open delta connected motor windings. For starters to be used with open delta connected separate winding motors, use consequent pole starter, and furnish complete ordering information, see 2-Speed Consequent Pole, 5-Pole — 3-Pole, Constant or Variable Torque.
T Vertically Arranged — Multi-speed starters, sizes 0…5, open type without enclosure can be supplied in a vertically arranged construction. To order, change the bulletin number in the listed cat. no. from 520E to 520VE. Example: Cat. No. 520VE-BOD-A2D-A2D.
‡ Does not include line and load lugs, see for kits.
§ Only available on sizes 00…5. When using 24V coils on size 4 or 5, an interposing relay may be required. See coil VA values on AC Coil Data.
§ When selecting a factory-installed control circuit transformer (see Modifications Modifications for Non-Combination Devices), use the common control coil voltage code to denote the transformer primary voltage. The starter coil and transformer secondary voltage will both be 120V by default. Example: Cat. No. 520E-BAB-6P will have a transformer with a 480V primary/120V secondary voltage and a 120V starter coil. If a starter coil voltage other than 120V is desired, a second coil voltage code must be added to denote the coil/transformer secondary voltage. Example: Cat. No. 520E-BABJ-6P will have a transformer with a 480V primary/24V secondary and a 24V starter coil.
Ø This coil is optimized for 110…115V, 50 Hz applications, but can be used at 120V, 60 Hz nominal.
z This coil is optimized for 115…120V, 60 Hz applications, but can be used at 110V, 50 Hz nominal.
ª This coil is optimized for 220…230V, 50 Hz applications, but can be used at 240V, 60 Hz nominal.
v This coil is optimized for 230…240V, 60 Hz applications, but can be used at 220V, 50 Hz nominal.

2-Speed Separate Winding, 3-Pole — 3-Pole, Constant or Variable Torque, Continued

Heater Elements — Starters with eutectic alloy overload relays require 3 heater elements for each speed. See Eutectic Alloy Overload Relay Heater Elements for heater element selection tables.

3-Phase Ÿ 600V AC Maximum Ÿ 60 Hz Ÿ With 3-Pole Overload Protection
NEMA Size	Continuous Ampere Rating [A]	Maximum Horsepower Rating Full Load Current Must Not Exceed “Continuous Ampere Rating”				Type 4/4X Watertight Corrosion- Resistant Enclosures Stainless Steel	Type 4X Watertight Corrosion- Resistant Enclosure Fiberglass-Reinforced Polyester	Hazardous Locations
		Motor Voltage						Bolted Enclosures
		200V	230V	50 Hz	460… 575V			Type 7 & 9 Class I, Groups C & D Class II, Groups E, F & G – Divisions 1 & 2 –	Type 3R, 7 & 9 Class I, Groups C & D Class II, Groups E, F & G – Divisions 1 & 2 –
		200V	230V	380… 415V	460… 575V	Cat. No.¬	Cat. No.¬ T	Cat. No.¬	Cat. No.¬ ‡
0	18	3	3	5	5	520E-ACÄ-µ-µ	520E-ASÄ-µ-µ	520E-AEÄ-µ-µ	520E-AHÄ-µ-µ
1	27	7-1/2	7-1/2	10	10	520E-BCÄ-µ-µ	520E-BSÄ-µ-µ	520E-BEÄ-µ-µ	520E-BHÄ-µ-µ
2	45	10	15	25	25	520E-CCÄ-µ-µ	520E-CSÄ-µ-µ	520E-CEÄ-µ-µ	520E-CHÄ-µ-µ
3	90	25	30	50	50	520E-DCÄ-µ-µ	—	520E-DEÄ-µ-µ	520E-DHÄ-µ-µ
4	135	40	50	75	100	520E-ECÄ-µ-µ		520E-EEÄ-µ-µ	520E-EHÄ-µ-µ
5	270	75	100	150	200	520E-FCÄ-µ-µ		—	—

Ä Coil Voltage Code

The cat. no. as listed is incomplete. Select a coil voltage code from the table below to complete the cat. no. Example: Cat. No. 520E-ACÄ-µ-µ becomes Cat. No. 520E-ACD-µ-µ. For other voltages, please consult your local Rockwell Automation sales office or Allen‑Bradley distributor.

[V]		24§	110- 115	115- 120	200- 208	220- 230	230- 240	240	277	380	380- 400	415	440- 460	460- 480	500	550	575- 600
Common Control	AC, 50 Hz	—	—	—	—	Pª	—	T	—	N	KN	I	Q	—	M	R	—
Common Control	AC, 60 Hz	—	—	—	H	—	Av	—	—	—	—	U	—	B	—	—	C
Transformer Control§	AC, 60 Hz	—	—	—	H	—	A	—	—	—	—	—	—	B	—	—	C
Separate Control (without transformer)	AC, 50 Hz	K	SØ	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Separate Control (without transformer)	AC, 60 Hz	J	—	Dz	—	—	—	—	F	—	—	—	—	—	—	—	—

µ-µ Overload Relay Code

Use to order solid-state overload relays. Do not use when ordering eutectic alloy overload relays. The cat. no. as listed is incomplete. Select two overload relay codes from E1 Plus Solid-State Overload Relay
(Selectable Class 10, 20, or 30) (Automatic/Manual Reset) to complete the cat. no. The first code will denote the high-speed overload relay and the second code will denote the low-speed overload relay. Example: Cat. No. 520E-ACD-µ-µ becomes Cat No. 520-ACD-A2D-A2D.

2-Speed Separate Winding, 3-Pole — 3-Pole, Constant Horsepower

Heater Elements — Starters with eutectic alloy overload relays require 3 heater elements for each speed. See Eutectic Alloy Overload Relay Heater Elements for heater element selection tables.

3-Phase Ÿ 600V AC Maximum Ÿ 60 Hz Ÿ With 3-Pole Overload Protection
NEMA Size	Continuous Ampere Rating [A]	Maximum Horsepower Rating Full Load Current Must Not Exceed “Continuous Ampere Rating”				Open Type Without Enclosure	Type 1 General Purpose Enclosure Surface Mounting	Type 3R/12 Rainproof, Dusttight Industrial Use Enclosure	Type 4/4X Watertight Corrosion- Resistant Enclosures Stainless Stee	Type 4X Watertight Corrosion- Resistant Enclosure Fiberglass- Reinforced Polyester
		Motor Voltage
		200V	230V	50 Hz	460… 575V
		200V	230V	380… 415V	460… 575V	Cat. No.¬ T	Cat. No.¬	Cat. No.¬	Cat. No.¬	Cat. No.¬ ‡
0	18	2	2	3	3	520E-AOÄ-µ-µ	520E-AAÄ-µ-µ	520E-AJÄ-µ-µ	520E-ACÄ-µ-µ	520E-ASÄ-µ-µ
1	27	5	5	7-1/2	25	520E-BOÄ-µ-µ	520E-BAÄ-µ-µ	520E-BJÄ-µ-µ	520E-BCÄ-µ-µ	520E-BSÄ-µ-µ
2	45	7-1/2	10	20	20	520E-COÄ-µ-µ	520E-CAÄ-µ-µ	520E-CJÄ-µ-µ	520E-CCÄ-µ-µ	520E-CSÄ-µ-µ
3	90	20	25	40	40	520E-DOÄ-µ-µ	520E-DAÄ-µ-µ	520E-DJÄ-µ-µ	520E-DCÄ-µ-µ	—
4	135	30	40	60	75	520E-EOÄ-µ-µ	520E-EAÄ-µ-µ	520E-EJÄ-µ-µ	520E-ECÄ-µ-µ
5	270	60	75	100	150	520E-FOÄ-µ-µ	520E-FAÄ-µ-µ	520E-FJÄ-µ-µ	520E-FCÄ-µ-µ
6§	540	100	150	200	300	520E-GOÄ-µ-µ	520E-GAÄ-µ-µ	520E-GJÄ-µ-µ	—
7§	810	—	225	—	450	520E-HOÄ-µ-µ	520E-HAÄ-µ-µ	520E-HJÄ-µ-µ	—

Ä Coil Voltage Code

The cat. no. as listed is incomplete. Select a coil voltage code from the table below to complete the cat. no. Example: Cat. No. 520E-AAÄ-µ-µ becomes Cat. No. 520E-AAD-µ-µ, and Cat. No. 520E-ACÄ-µ-µ becomes Cat. No. 520E-ACD-µ-µ. For other voltages, please consult your local Rockwell Automation sales office or Allen‑Bradley distributor.

[V]		24§	110- 115	115- 120	200- 208	220- 230	230- 240	240	277	380	380- 400	415	440- 460	460- 480	500	550	575- 600
Common Control	AC, 50 Hz	—	—	—	—	Pv	—	T	—	N	KN	I	Q	—	M	R	—
Common Control	AC, 60 Hz	—	—	—	H	—	Aª	—	—	—	—	U	—	B	—	—	C
Transformer ControlØ	AC, 60 Hz	—	—	—	H	—	A	—	—	—	—	—	—	B	—	—	C
Separate Control (without transformer)	AC, 50 Hz	K	Sz	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Separate Control (without transformer)	AC, 60 Hz	J	—	Dª	—	—	—	—	F	—	—	—	—	—	—	—	—

µ-µ Overload Relay Code

Use to order solid-state overload relays. Do not use when ordering eutectic alloy overload relays. The cat. no. as listed is incomplete. Select two overload relay codes from E1 Plus Solid-State Overload Relay
(Selectable Class 10, 20, or 30) (Automatic/Manual Reset) to complete the cat. no. The first code will denote the high-speed overload relay and the second code will denote the low-speed overload relay. Example: Cat. No. 520E-AAD-µ-µ becomes Cat. No. 520E-AAD-A2D-A2B.

2-Speed Separate Winding, 3-Pole — 3-Pole, Constant Horsepower, Continued


Bulletin 520E, Size 1 with Eutectic Alloy Overload Relays Bolted Enclosure (with Cover Open) Shown with Optional Modifications		Bulletin 520E, Size 1 with Solid-State Overload Relays Bolted Enclosure (with Cover Open) Shown with Optional Modifications

Heater Elements — Starters with eutectic alloy overload relays require 3 heater elements for each speed. See Eutectic Alloy Overload Relay Heater Elements for heater element selection tables.

3-Phase Ÿ 600V AC Maximum Ÿ 60 Hz Ÿ With 3-Pole Overload Protection
NEMA Size	Continuous Ampere Rating [A]	Maximum Horsepower Rating Full Load Current Must Not Exceed “Continuous Ampere Rating”				Hazardous Locations
						Bolted Enclosures
						Type 7 & 9¬ Class I, Groups C & D Class II, Groups E, F & G – Divisions 1 & 2 –	Type 3R, 7 & 9¬ T Class I, Groups C & D Class II, Groups E, F & G – Divisions 1 & 2 –
		Motor Voltage
		200V	230V	380…415V	460…575V	Cat. No.	Cat. No.
0	18	2	2	3	3	520E-AEÄ-µ-µ	520E-AHÄ-µ-µ
1	27	5	5	7-1/2	7-1/2	520E-BEÄ-µ-µ	520E-BHÄ-µ-µ
2	45	7-1/2	10	20	20	520E-CEÄ-µ-µ	520E-CHÄ-µ-µ
3	90	20	25	40	40	520E-DEÄ-µ-µ	520E-DHÄ-µ-µ
4	135	30	40	60	75	520E-EEÄ-µ-µ	520E-EHÄ-µ-µ

Ä Coil Voltage Code

The cat. no. as listed is incomplete. Select a coil voltage code from the table below to complete the cat. no. Example: Cat. No. 520E-AEÄ-µ-µ becomes Cat. No. 520E-AED-µ-µ. For other voltages, please consult your local Rockwell Automation sales office or Allen‑Bradley distributor.

[V]		24‡	110- 115	115- 120	200- 208	220- 230	230- 240	240	277	380	380- 400	415	440- 460	460- 480	500	550	575- 600
Common Control	AC, 50 Hz	—	—	—	—	Pz	—	T	—	N	KN	I	Q	—	M	R	—
Common Control	AC, 60 Hz	—	—	—	H	—	Aª	—	—	—	—	U	—	B	—	—	C
Transformer Control§	AC, 60 Hz	—	—	—	H	—	A	—	—	—	—	—	—	B	—	—	C
Separate Control (without transformer)	AC, 50 Hz	K	S§	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Separate Control (without transformer)	AC, 60 Hz	J	—	DØ	—	—	—	—	F	—	—	—	—	—	—	—	—

µ-µ Overload Relay Code

Use to order solid-state overload relays. Do not use when ordering eutectic alloy overload relays. The cat. no. as listed is incomplete. Select two overload relay codes from E1 Plus Solid-State Overload Relay
(Selectable Class 10, 20, or 30) (Automatic/Manual Reset) to complete the cat. no. The first code will denote the high-speed overload relay and the second code will denote the low-speed overload relay. Example: Cat. No. 520E-AED-µ-µ becomes Cat. No. 520E-AED-A2D-A2D.

2-Speed Consequent Pole, 5-Pole — 3-Pole, Constant or Variable Torque


Bulletin 520F, Size 1 with Eutectic Alloy Overload Relays Type 1, General Purpose Enclosure Shown with Cover Removed		Bulletin 520F, Size 1 with Solid-State Overload Relays Type 1 General Purpose Enclosure (with Cover Removed)


Type 4/4X Watertight Corrosion-Resistant Enclosure Stainless Steel		Type 4X Watertight Corrosion-Resistant Enclosure Fiberglass-Reinforced Polyester Shown with Optional Pilot Lights and Push Buttons

Heater Elements — Starters with eutectic alloy overload relays require 3 heater elements for each speed. See Eutectic Alloy Overload Relay Heater Elements for heater element selection tables.

3-Phase Ÿ 600V AC Maximum Ÿ 60 Hz Ÿ With 3-Pole Overload Protection
NEMA Size	Continuous Ampere Rating [A]	Maximum Horsepower Rating Full Load Current Must Not Exceed “Continuous Ampere Rating”				Open Type Without Enclosure	Type 1 General Purpose Enclosure Surface Mounting	Type 3R/12 Rainproof, Dusttight Industrial Use Enclosure	Type 4/4X Watertight Corrosion-Resistant Enclosures Stainless Steel	Type 4X Watertight Corrosion-Resistant Enclosure Fiberglass-Reinforced Polyester
		Motor Voltage
		200V	230V	50 Hz	460…575V
		200V	230V	380…415V	460…575V	Cat. No.¬	Cat. No.	Cat. No.	Cat. No.T	Cat. No.‡
0	18	3	3	5	5	520F-AOÄ-µ-µ	520F-AAÄ-µ-µ	520F-AJÄ-µ-µ	520F-ACÄ-µ-µ	520F-ASÄ-µ-µ
1	27	7-1/2	7-1/2	10	10	520F-BOÄ-µ-µ	520F-BAÄ-µ-µ	520F-BJÄ-µ-µ	520F-BCÄ-µ-µ	520F-BSÄ-µ-µ
2	45	10	15	25	25	520F-COÄ-µ-µ	520F-CAÄ-µ-µ	520F-CJÄ-µ-µ	520F-CCÄ-µ-µ	520F-CSÄ-µ-µ
3	90	25	30	50	50	520F-DOÄ-µ-µ	520F-DAÄ-µ-µ	520F-DJÄ-µ-µ	520F-DCÄ-µ-µ	—
4	135	40	50	75	100	520F-EOÄ-µ-µ	520F-EAÄ-µ-µ	520F-EJÄ-µ-µ	520F-ECÄ-µ-µ
5§	270	75	100	150	200	520F-FOÄ-µ-µ	520F-FAÄ-µ-µ	520F-FJÄ-µ-µ	520F-FCÄ-µ-µ

Ä Coil Voltage Code

The cat. no. as listed is incomplete. Select a coil voltage code from the table below to complete the cat. no. Example: Cat. No. 520F-AAÄ-µ-µ becomes Cat. No. 520F-AAD-µ-µ. For other voltages, please consult your local Rockwell Automation sales office or Allen‑Bradley distributor.

[V]		24§	110- 115	115- 120	200- 208	220- 230	230- 240	240	277	380	380- 400	415	440- 460	460- 480	500	550	575- 600
Common Control	AC, 50 Hz	—	—	—	—	Pv	—	T	—	N	KN	I	Q	—	M	R	—
Common Control	AC, 60 Hz	—	—	—	H	—	Aª	—	—	—	—	U	—	B	—	—	C
Transformer ControlØ	AC, 60 Hz	—	—	—	H	—	A	—	—	—	—	—	—	B	—	—	C
Separate Control (without transformer)	AC, 50 Hz	K	Sz	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Separate Control (without transformer)	AC, 60 Hz	J	—	Dª	—	—	—	—	F	—	—	—	—	—	—	—	—

¬ Vertically Arranged — Multi-speed starters, sizes 0…5, open type without enclosure can be supplied in a vertically arranged construction. To order, change the bulletin number in the listed cat. no. from 520F to 520VF. Example: Cat. No. 520VF-AOD-A2D-A2D.
T Size 6 is a painted enclosure.
‡ Fiberglass reinforced polyester hubs are included with each starter.
§ For proper overload relay selection, when low speed full load currents are less than 77 A, consult your local Rockwell Automation sales office or Allen‑Bradley distributor.
§ Only available on sizes 0…5. When using 24V coils on sizes 4 and 5, an interposing relay may be required. See coil VA values on AC Coil Data.
Ø When selecting a factory-installed control circuit transformer (see Modifications Modifications for Non-Combination Devices), use the common control coil voltage code to denote the transformer primary voltage. The starter coil and transformer secondary voltage will both be 120V by default. Example: Cat. No. 520F-BAB-6P will have a transformer with a 480V primary/120V secondary voltage and a 120V starter coil. If a starter coil voltage other than 120V is desired, a second coil voltage code must be added to denote the coil/transformer secondary voltage. Example: Cat. No. 520F-BABJ-6P will have a transformer with a 480V primary/24V secondary and a 24V starter coil.
z This coil is optimized for 110…115V, 50 Hz applications, but can be used at 120V, 60 Hz nominal.
ª This coil is optimized for 115…120V, 60 Hz applications, but can be used at 110V, 50 Hz nominal.
v This coil is optimized for 220…230V, 50 Hz applications, but can be used at 240V, 60 Hz nominal.
ª This coil is optimized for 230…240V, 60 Hz applications, but can be used at 220V, 50 Hz nominal.

2-Speed Consequent Pole, 5-Pole — 3-Pole, Constant or Variable Torque, Continued


Bulletin 520F, Size 1 with Eutectic Alloy Overload Relay Bolted Enclosure (with Cover Open)		Bulletin 520F, Size 1 with Solid-State Overload Relay Bolted Enclosure (with Cover Open)

Heater Elements — Starters with eutectic alloy overload relays require 3 heater elements for each speed. See Eutectic Alloy Overload Relay Heater Elements for heater element selection tables.

3-Phase Ÿ 600V AC Maximum Ÿ 60 Hz Ÿ With 3-Pole Overload Protection
NEMA Size	Continuous Ampere Rating [A]	Maximum Horsepower Rating Full Load Current Must Not Exceed “Continuous Ampere Rating”				Hazardous Locations
						Bolted Enclosures
		Motor Voltage				Type 7 & 9 Class I, Groups C & D Class II, Groups E, F & G – Divisions 1 & 2 –	Type 3R, 7 & 9¬ Class I, Groups C & D Class II, Groups E, F & G – Divisions 1 & 2 –
		200V	230V	50Hz	460…575V
		200V	230V	380…415V	460…575V	Cat. No.	Cat. No.
0	18	3	3	5	5	520F-AEÄ-µ-µ	520F-AHÄ-µ-µ
1	27	7-1/2	7-1/2	10	10	520F-BEÄ-µ-µ	520F-BHÄ-µ-µ
2	45	10	15	25	25	520F-CEÄ-µ-µ	520F-CHÄ-µ-µ
3	90	25	30	50	50	520F-DEÄ-µ-µ	520F-DHÄ-µ-µ

Ä Coil Voltage Code

The cat. no. as listed is incomplete. Select a coil voltage code from the table below to complete the cat. no. Example: Cat. No. 520F-AEÄ-µ-µ becomes Cat. No. 520F-AED-µ-µ. For other voltages, please consult your local Rockwell Automation sales office or Allen‑Bradley distributor.

[V]		24	110- 115	115- 120	200- 208	220- 230	230- 240	240	277	380	380- 400	415	440- 460	460- 480	500	550	575- 600
Common Control	AC, 50 Hz	—	—	—	—	P§	—	T	—	N	KN	I	Q	—	M	R	—
Common Control	AC, 60 Hz	—	—	—	H	—	AØ	—	—	—	—	U	—	B	—	—	C
Transformer ControlT	AC, 60 Hz	—	—	—	H	—	A	—	—	—	—	—	—	B	—	—	C
Separate Control (without transformer)	AC, 50 Hz	K	S‡	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Separate Control (without transformer)	AC, 60 Hz	J	—	D§	—	—	—	—	F	—	—	—	—	—	—	—	—

¬ Includes drain and cover gasket.
T When selecting a factory-installed control circuit transformer (see Modifications Modifications for Non-Combination Devices), use the common control coil voltage code to denote the transformer primary voltage. The starter coil and transformer secondary voltage will both be 120V by default. Example: Cat. No. 520F-BEB-6P will have a transformer with a 480V primary/120V secondary voltage and a 120V starter coil. If a starter coil voltage other than 120V is desired, a second coil voltage code must be added to denote the coil/transformer secondary voltage. Example: Cat. No. 520F-BEBJ-6P will have a transformer with a 480V primary/24V secondary and a 24V starter coil.
‡ This coil is optimized for 110…115V, 50 Hz applications, but can be used at 120V, 60 Hz nominal.
§ This coil is optimized for 115…120V, 60 Hz applications, but can be used at 110V, 50 Hz nominal.
§ This coil is optimized for 220…230V, 50 Hz applications, but can be used at 240V, 60 Hz nominal.
Ø This coil is optimized for 230…240V, 60 Hz applications, but can be used at 220V, 50 Hz nominal.

2-Speed Consequent Pole, 5-Pole — 3-Pole, Constant Horsepower


Bulletin 520G, Size 1 with Eutectic Alloy Overload Relays Type 1, General Purpose Enclosure Shown with Cover Removed		Bulletin 520G, Size 1 with Solid-State Overload Relays Type 1 General Purpose Enclosure (with Cover Removed)


Type 4/4X Watertight Corrosion-Resistant Enclosure Stainless Steel		Type 4X Watertight Corrosion-Resistant Enclosure Fiberglass-Reinforced Polyester Shown with Optional Pilot Lights and Push Buttons

Heater Elements — Starters with eutectic alloy overload relays require 3 heater elements for each speed. See Eutectic Alloy Overload Relay Heater Elements for heater element selection tables.

3-Phase Ÿ 600V AC Maximum Ÿ 60 Hz Ÿ With 3-Pole Overload Protection
NEMA Size	Continuous Ampere Rating [A]	Maximum Horsepower Rating Full Load Current Must Not Exceed “Continuous Ampere Rating”				Open Type Without Enclosure	Type 1 General Purpose Enclosure Surface Mounting	Type 3R/12 Rainproof, Dusttight Industrial Use Enclosure	Type 4/4X Watertight Corrosion-Resistant Enclosures Stainless Steel	Type 4X Watertight Corrosion-Resistant Enclosure Fiberglass-Reinforced Polyester
		Motor Voltage
		200V	230V	50 Hz	460…575V
		200V	230V	380…415V	460…575V	Cat. No.¬	Cat. No.	Cat. No.	Cat. No.T	Cat. No.‡
0	18	2	2	3	3	520G-AOÄ-µ-µ	520G-AAÄ-µ-µ	520G-AJÄ-µ-µ	520G-ACÄ-µ-µ	520G-ASÄ-µ-µ
1	27	5	5	7-1/2	7-1/2	520G-BOÄ-µ-µ	520G-BAÄ-µ-µ	520G-BJÄ-µ-µ	520G-BCÄ-µ-µ	520G-BSÄ-µ-µ
2	45	7-1/2	10	20	20	520G-COÄ-µ-µ	520G-CAÄ-µ-µ	520G-CJÄ-µ-µ	520G-CCÄ-µ-µ	520G-CSÄ-µ-µ
3	90	20	25	40	40	520G-DOÄ-µ-µ	520G-DAÄ-µ-µ	520G-DJÄ-µ-µ	520G-DCÄ-µ-µ	—
4	135	30	40	60	75	520G-EOÄ-µ-µ	520G-EAÄ-µ-µ	520G-EJÄ-µ-µ	520G-ECÄ-µ-µ
5	270	60	75	100	150	520G-FOÄ-µ-µ	520G-FAÄ-µ-µ	520G-FJÄ-µ-µ	520G-FCÄ-µ-µ

Ä Coil Voltage Code

The cat. no. as listed is incomplete. Select a coil voltage code from the table below to complete the cat. no. Example: Cat. No. 520G-AAÄ-µ-µ becomes Cat. No. 520G-AAD-µ-µ. For other voltages, please consult your local Rockwell Automation sales office or Allen‑Bradley distributor.

[V]		24§	110- 115	115- 120	200- 208	220- 230	230- 240	240	277	380	380- 400	415	440- 460	460- 480	500	550	575- 600
Common Control	AC, 50 Hz	—	—	—	—	Pª	—	T	—	N	KN	I	Q	—	M	R	—
Common Control	AC, 60 Hz	—	—	—	H	—	Av	—	—	—	—	U	—	B	—	—	C
Transformer Control§	AC, 60 Hz	—	—	—	H	—	A	—	—	—	—	—	—	B	—	—	C
Separate Control (without transformer)	AC, 50 Hz	K	SØ	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Separate Control (without transformer)	AC, 60 Hz	J	—	Dz	—	—	—	—	F	—	—	—	—	—	—	—	—

¬ Vertically Arranged — Multi-speed starters, sizes 0…5, open type without enclosure can be supplied in a vertically arranged construction. To order, change the bulletin number in the listed cat. no. from 520G to 520VG. Example: Cat. No. 520VG-AOD-A2D-A2D.
T Size 6 is a painted enclosure.
‡ Fiberglass reinforced polyester hubs are included with each starter.
§ Only available in sizes 0…5. When using 24V coils on sizes 4 and 5, an interposing relay may be required. See coil VA values on AC Coil Data.
§ When selecting a factory-installed control circuit transformer (see Modifications Modifications for Non-Combination Devices), use the common control coil voltage code to denote the transformer primary voltage. The starter coil and transformer secondary voltage will both be 120V by default. Example: Cat. No. 520G-BAB-6P will have a transformer with a 480V primary/120V secondary voltage and a 120V starter coil. If a starter coil voltage other than 120V is desired, a second coil voltage code must be added to denote the coil/transformer secondary voltage. Example: Cat. No. 520G-BABJ-6P will have a transformer with a 480V primary/24V secondary and a 24V starter coil.
Ø This coil is optimized for 110…115V, 50 Hz applications, but can be used at 120V, 60 Hz nominal.
z This coil is optimized for 115…120V, 60 Hz applications, but can be used at 110V, 50 Hz nominal.
ª This coil is optimized for 220…230V, 50 Hz applications, but can be used at 240V, 60 Hz nominal.
v This coil is optimized for 230…240V, 60 Hz applications, but can be used at 220V, 50 Hz nominal.

2-Speed Consequent Pole, 5-Pole — 3-Pole, Constant Horsepower, Continued


Bulletin 520G, Size 1 with Eutectic Alloy Overload Relay Bolted Enclosure (with Cover Open)		Bulletin 520G, Size 1 with Solid-State Overload Relay Bolted Enclosure (with Cover Open)

Heater Elements — Starters with eutectic alloy overload relays require 3 heater elements for each speed. See Eutectic Alloy Overload Relay Heater Elements for heater element selection tables.

3-Phase Ÿ 600V AC Maximum Ÿ 60 Hz Ÿ With 3-Pole Overload Protection
NEMA Size	Continuous Ampere Rating [A]	Maximum Horsepower Rating Full Load Current Must Not Exceed “Continuous Ampere Rating”				Hazardous Locations
						Bolted Enclosures
		Motor Voltage				Type 7 & 9 Class I, Groups C & D Class II, Groups E, F & G – Divisions 1 & 2 –	Type 3R, 7 & 9¬ Class I, Groups C & D Class II, Groups E, F & G – Divisions 1 & 2 –
		200V	230V	380...415V	460…575V	Cat. No.	Cat. No.
0	18	3	3	5	5	520G-AEÄ-µ-µ	520G-AHÄ-µ-µ
1	27	7-1/2	7-1/2	10	10	520G-BEÄ-µ-µ	520G-BHÄ-µ-µ
2	45	10	15	25	25	520G-CEÄ-µ-µ	520G-CHÄ-µ-µ
3	90	25	30	50	50	520G-DEÄ-µ-µ	520G-DHÄ-µ-µ

Ä Coil Voltage Code

The cat. no. as listed is incomplete. Select a coil voltage code from the table below to complete the cat. no. Example: Cat. No. 520G-AEÄ-µ-µ becomes Cat. No. 520G-AED-µ-µ. For other voltages, please consult your local Rockwell Automation sales office or Allen‑Bradley distributor.

[V]		24	110- 115	115- 120	200- 208	220- 230	230- 240	240	277	380	380- 400	415	440- 460	460- 480	500	550	575- 600
Common Control	AC, 50 Hz	—	—	—	—	P§	—	T	—	N	KN	I	Q	—	M	R	—
Common Control	AC, 60 Hz	—	—	—	H	—	AØ	—	—	—	—	U	—	B	—	—	C
Transformer ControlT	AC, 60 Hz	—	—	—	H	—	A	—	—	—	—	—	—	B	—	—	C
Separate Control (without transformer)	AC, 50 Hz	K	S‡	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Separate Control (without transformer)	AC, 60 Hz	J	—	D§	—	—	—	—	F	—	—	—	—	—	—	—	—

¬ Includes drain and cover gasket.
T When selecting a factory-installed control circuit transformer (see Modifications Modifications for Non-Combination Devices), use the common control coil voltage code to denote the transformer primary voltage. The starter coil and transformer secondary voltage will both be 120V by default. Example: Cat. No. 520G-BEB-6P will have a transformer with a 480V primary/120V secondary voltage and a 120V starter coil. If a starter coil voltage other than 120V is desired, a second coil voltage code must be added to denote the coil/transformer secondary voltage. Example: Cat. No. 520G-BEBJ-6P will have a transformer with a 480V primary/24V secondary and a 24V starter coil.
‡ This coil is optimized for 110…115V, 50 Hz applications, but can be used at 120V, 60 Hz nominal.
§ This coil is optimized for 115…120V, 60 Hz applications, but can be used at 110V, 50 Hz nominal.
§ This coil is optimized for 220…230V, 50 Hz applications, but can be used at 240V, 60 Hz nominal.
Ø This coil is optimized for 230…240V, 60 Hz applications, but can be used at 220V, 50 Hz nominal.