Reduced Voltage Starters, Combination Starters, and Pump Control Panels

Catalogs > Industrial Controls Catalog > Motor Control, NEMA > Contactors, Starters, and Overload Relays > Reduced Voltage Starters, Combination Starters, and Pump Control Panels > Bulletin 570 Autotransformer Starters

Bulletin 570 Autotransformer Starters

Specifications

Electrical Ratings

NEMA Size	Load Voltage [V]	Continuous Current Rating [A]	Service Limit Current Rating [A]¬	Maximum Hp Rating (Non-plugging and non-jogging duty)		Maximum Hp Rating (Plugging and jogging duty)T		Transformer Primary Switching kVa Rating (Inrush Current £ 20 times Continuous Current)		Transformer Primary Switching kVa Rating (Inrush Current = 20 to 40 times Continuous Current)		Capacitor Switching kVAR‡	Maximum Circuit Closing Inrush Current [A] Peak Including Offset
				1Æ	3Æ	1Æ	3Æ	1Æ	3Æ	1Æ	3Æ	3Æ	3Æ
00	115 200 230 380 460 575	9	11	1/3 — 1 — — —	— 1-1/2 1-1/2 1-1/2 2 2	1/4 — 1/2 — — —	— 1 1 1 1-1/2 1-1/2	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	87
0	115 200 230 380 460 575	18	21	1 — 2 — — —	— 3 3 5 5 5	1/2 — 1 — — —	— 1-1/2 1-1/2 1-1/2 2 2	0.6 — 1.2 — 2.4 3	— 1.8 2.1 — 4.2 5.2	0.3 — 0.6 — 1.2 1.5	— 0.9 1 — 2.1 2.6	— — — — — —	140
1	115 200 230 380 460 575	27	32	2 — 3 — — —	— 7-1/2 7-1/2 10 10 10	1 — 2 — — —	— 3 3 5 5 5	1.2 — 2.4 — 4.9 6.2	— 3.6 4.3 — 8.5 11	0.6 — 1.2 — 2.5 3.1	— 1.8 2.1 — 4.3 5.3	— — 6 — 13.5 17	288
1P	115 230	36	42	3 5	— —	1-1/2 3	— —	— —	— —	— —	— —	— —	— —
2	115 200 230 380 460 575	45	52	3 — 7-1/2 — — —	— 10 15 25 25 25	2 — 5 — — —	— 7-1/2 10 15 15 15	2.1 — 4.1 — 8.3 10	— 6.3 7.2 — 14 18	1 — 2.1 — 4.2 5.2	— 3.1 3.6 — 7.2 8.9	— — 12 — 25 31	483
3	115 200 230 380 460 575	90	104	7-1/2 — 15 — — —	— 25 30 50 50 50	7-1/2 — 15 — — —	— 15 20 30 30 30	4.1 — 8.1 — 16 20	— 12 14 — 28 35	2 — 4.1 — 8.1 10	— 6.1 7.0 — 14 18	— — 27 — 53 67	947
4	115 200 230 380 460 575	135	156	— — — — — —	— 40 50 75 100 100	— — — — — —	— 25 30 50 60 60	6.8 — 14 — 27 34	— 20 23 — 47 59	3.4 — 6.8 — 14 17	— 10 12 — 23 29	— — 40 — 80 100	1581
5	115 200 230 380 460 575	270	311	— — — — — —	— 75 100 150 200 200	— — — — — —	— 60 75 125 150 150	14 — 27 — 54 68	— 41 47 — 94 117	6.8 — 14 — 27 34	— 20 24 — 47 59	— — 80 — 160 200	3163
6	115 200 230 380 460 575	540	621	— — — — — —	— 150 200 300 400 400	— — — — — —	— 125 150 250 300 300	27 — 54 — 108 135	— 81 94 — 188 234	14 — 27 — 54 68	— 41 47 — 94 117	— — 160 — 320 400	6326
7	230 460 575	810	932	— — —	300 600 600	— — —	— — —	— — —	— — —	— — —	— — —	240 480 600	9470
8	230 460 575	1215	1400	— — —	450 900 900	— — —	— — —	— — —	— — —	— — —	— — —	360 720 900	14205
9	230 460 575	2250	2590	— — —	800 1600 1600	— — —	— — —	— — —	— — —	— — —	— — —	665 1325 1670	25380
¬ Service-Limit Current Ratings — The service-limit current ratings shown represent the maximum rms current, in amperes, which the controller shall be permitted to carry for protracted periods in normal service. At service-limit current ratings, temperature rises shall be permitted to exceed those obtained by testing the controller at its continuous current rating. The current rating of overload relays or the trip current of other motor protective devices used shall not exceed the service-limit current rating of the controller.
T Plugging or Jogging Service — The listed horsepower ratings are recommended for those applications requiring repeated interruption of stalled motor current encountered in rapid motor reversal in excess of five openings or closings per minute and shall not be more than ten in a ten minute period.
‡ If maximum available current (at capacitor terminals) is greater than 3000 A, please contact your local Rockwell Automation sales office, Allen-Bradley distributor, or NEMA ICS-2 Standard.

Mechanical Ratings

NEMA Size	Mechanical Life (Millions of Operations)	Maximum Number of Auxiliary Contacts	Operating Time [ms]
			Pick-up (Average)	Drop-out (Average)
0	10	8	21	16
1	10	8	22	14
1P	10	8	22	14
2	10	8	27	13
3	5	8	37	20
4	5	8	27	20
5	5	8	25	18
6	5	4	25…79	10…22
7	—	8	88	40
8	—	8	88	45
9	—	8	118	84
00	10	5	20	16

Construction

NEMA Size	Contact Material		Type of Power Terminal	Wire Size for Power Terminals	Required Torque on Power Terminal Wire Clamps and Pressure Connectors or Lugs	Requirements for Sizing of Wire
	Power Contacts	Auxiliary Contacts
0	Silver alloy	Silver	Saddle or wire clamps	#14…10 AWG	20 lb•in	All wire rated 167 °F (75 °C) or higher must be sized per the local Electrical Code for 167°F (75 °C) wire.
1				#14…8 AWG	20 lb•in
1P			Pressure terminals	#14…8 AWG	20 lb•in
2				#14…4 AWG	45 lb•in
3				#8…1/0 AWG	150 lb•in
4				#6…4/0 AWG	275 lb•in
5				#4 AWG…500 MCM	375 lb•in
6			Lugs sold separately. See .
7
8
9			Direct bus connections only.
00			Pressure terminals	#16…10 AWG	9 lb•in

Environmental

NEMA Size	Operating Temperature Range	Altitude	Corrosion-Resistance	Operating Position
0	Starters with eutectic alloy Overload relay –13…+149 °F (–25…+65 °C) Starters with SMP Overload relay –13…+131 °F (–25…+55 °C) (provided condensation is prevented)	10 000 feet before derating	All metal parts are treated for corrosion-resistance	Vertical
1
1P
2
3
4
5
6				Horizontal
7				Vertical
8
9
00				Horizontal

Short Circuit Rating

Combination contactors and starters with disconnect switch: Bulletin 502, 506, 512, 522E, 522F, 522G, and 1232X

Combination Contactors and Starters with Disconnect Switch: Bulletin 502, 506, 512, 522E, 522F, 522G, and 1232X
NEMA Size	Fuse Type	Available Short Circuit Amperes RMS Symmetrical [A]	Maximum Voltage [V]
0…3	H, K	5000	600
4…5	H, K	10 000
0…5	J, R	100 000
6	L	18 000
7	L	18 000
Combination Lighting Contactors with Disconnect Switch: Bulletin 502L
Lighting Contactor Rating [A]	Fuse Type	Available Short Circuit Amperes RMS Symmetrical [A]	Maximum Voltage [V]
20…100	H, K	5000	600
200…300	H, K	10 000
20…300	J, R	100 000
Combination Contactors and Starters with Circuit Breaker: Bulletin 503, 507, 513, 523E, 523F, 523G, and 1233X
Enclosure Type	NEMA Size	Available Short Circuit Amperes RMS Symmetrical [A]	Maximum Voltage [V]
1, 3R, 3R/4/12, 4/4X (stainless)	0…5	65 000	480
4/4X (non-metallic)	0…5	22 000
Unilock 3R, 7, & 9	0…5	65 000
Bolted 3R, 7, & 9	0…2	65 000
1, 3R, 3R/4/12, 4/4X (stainless)	0…5	25 000	600
4/4X (non-metallic)	0…3	5000
4/4X (non-metallic)	4…5	10 000
Unilock 3R, 7, & 9	0…3	5000
Unilock 3R, 7, & 9	4…5	10 000
Bolted 3R, 7, & 9	0…2	5000
3R, 3R/4/12	6…7	10 000
Combination Lighting Contactors with Circuit Breaker: Bulletin 503L
Enclosure Type	Lighting Contactor Rating [A]	Available Short Circuit Amperes RMS Symmetrical [A]	Maximum Voltage [V]
1, 3R, 3R/4/12, 4/4X (stainless)	20…300	65 000	480
4/4X (non-metallic)	20…300	22 000
Unilock 3R, 7, & 9	20…300	65 000
Bolted 3R, 7, & 9	20…300	65 000
1, 3R, 3R/4/12, 4/4X (stainless)	20…300	25 000	600
4/4X (non-metallic)	20…100	5000
4/4X (non-metallic)	20…300	10 000
Unilock 3R, 7, & 9	20…100	5000
Unilock 3R, 7, & 9	20…300	10 000
Bolted 3R, 7, & 9	20…300	5000

AC Coil Data

NEMA Size	Operating Volt Amperes Burden [VA]		Heat Dissipation [W]	Coil Operating Limits
	60 Hz Coils
	Inrush	Sealed
00	70	8	2.7	85…110%
0	192	29	5.9
1 & 1P	192	29	5.9
2 (2…3 poles)	240	29	5.9
2 (4…5 poles)	315	38	5.9
3 (2…3 poles)	660	45	10
3 (4…5 poles)	840	58	10
4 (2…3 poles)	1225	69	14.8
4 (4…5 poles)	1490	96	14.8
5 (Series L)	1490	96	19.8
6¬	4860	254	65.7
6 (Interposing relay)	52.44	3.96	—
7T	Economized DC Coil		—
7 (Interposing relay)	74.40	9.84	—
8‡	Economized DC Coil		—
8 (Interposing relay)	74.40	9.84	—
9§	Economized DC Coil		—
9 (Interposing relay)	144	19.20	—
¬ This rating is for the size 6 contactor coil only. All starters are shipped with an interposing relay as standard.
T Size 7 starters are shipped with a 250 VA control circuit transformer and an interposing relay with a 120V coil. Voltage is then rectified to DC for the contactor coil.
‡ Size 8 starters are shipped with a 350 VA control circuit transformer and an interposing relay with a 120V coil. Voltage is then rectified to DC for the contactor coil.
§ Size 9 starters are shipped with a 750 VA control circuit transformer and an interposing relay with a 120V coil. Voltage is then rectified to DC for the contactor coil.

Auxiliary Contacts (NEMA A600 and P300) — Bulletin 595, 596

Maximum AC Contact Rating Per Pole
AC Rating Designation	Maximum Voltage 60 or 50 Hz	[A]		Continuous Carrying Current [A]	[VA]
		Make	Break		Make	Break
A600	120	60	6	10	7200	720
	240	30	3	10	7200	720
	480	15	1.5	10	7200	720
	600	12	1.2	10	7200	720
Maximum DC Contact Rating Per Pole for 595, 596 Auxiliary Contacts (Maximum Continuous Carrying Current is 5 A)
DC Rating Designation	125V DC		250V DC		600V DC
P300	0.55 A		0.55 A (Requires 2 Contacts in Series)		—
	1.1 A (Requires 2 Contacts in Series)

Load-Life Curves

Bulletin 500 Line contactors and starters are designed to provide superior performance in a variety of applications. These load-life curves are based on Rockwell Automation tests according to the requirements defined in IEC 947-4. Actual contact life may vary based on the application, duty cycle, and environmental conditions from that indicated by the curves.
To find the contactor’s estimated electrical life, follow these guidelines:

• Choose the appropriate graph that most closely approximates the utilization category of the application.
  
• Locate the intersection of the life-load curve of the appropriate contactor with the application’s operational current (I_e) found on the horizontal axis.
  
• Read the estimated contact life in millions of operations along the vertical axis.
  

Contact Life for Mixed Utilization Categories AC3 and AC4

In many applications, the utilization category cannot be defined as either purely AC3 or AC4. In those applications, the electrical life of the contactor can be estimated from the following equation:



Utilization Categories

Category Typical Duty

AC3 Starting of squirrel cage motors and switching off only after the motor is up to speed.

AC4 Starting of squirrel cage motors with inching and plugging duty.

Bulletin 500 Load/ Life Curves — AC3 and AC4