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Eaton A200 Series - NEMA Contactors, Starters, Relays & Shoe Breakes

Eaton A200 Series Family Photo

Contactors—Non-Reversing and Reversing

Class A201 Contactors, Sizes 00–4; Three-Phase, 1-1/2–100 hp
A201 Magnetic Contactors from Eaton’s Electrical Sector are 600V rated devices available in NEMA Sizes 00– 4, 10A through 150A (open rating). Product features include:

  • Straight-through wiring to line and load terminals located up front for ease of installation
  • Moving and stationary contacts are front accessible, simplifying inspection and maintenance
  • Reliable U-shaped magnet for reduced power consumption
  • Coil design reduces inventory/maintenance expenses. For a given voltage, one size coil fits all contactors Sizes 00–2, and a second coil fits threepole Model J Sizes 3 and 4. Model K coils are different design

A201 contactors have normally open holding circuit interlocks which are supplied as standard.

For reversing applications, two contactors are supplied on a common base with electrical and mechanical interlocks which prevent both contactors from being closed at the same time.


Class A201 Contactors, Sizes 5–9; Three-Phase, Over 100 hp
These AC magnetic contactors utilize clapper design and feature straightthrough wiring.

Contacts are silver alloy for longer life. The contacts close with optimum wiping action which serves to keep the contacting surfaces clean. De-ion® arc quenchers draw the arc away from the contacts at opening, which reduces burning and pitting and increases contact life.

All of the contactors are complete with one unwired, normally-open (NO) auxiliary contact mounted and have accommodations for additional auxiliary contacts. No control circuit wiring or terminal markings are included.


Class A201 Contactors, Sizes 00–4; Three-Phase, 1-1/2–100 hp A201
Magnetic Contactors from Eaton’s Electrical Sector are 600V rated devices available in NEMA Sizes 00– 4, 10A through 150A (open rating). Product features include:

  • Straight-through wiring to line and load terminals located up front for ease of installation
  • Moving and stationary contacts are front accessible, simplifying inspection and maintenance
  • Reliable U-shaped magnet for reduced power consumption
  • Coil design reduces inventory/maintenance expenses. For a given voltage, one size coil fits all contactors Sizes 00–2, and a second coil fits threepole Model J Sizes 3 and 4. Model K coils are different design

A201 contactors have normally open holding circuit interlocks which are supplied as standard. Panel layout and drilling are simplified through the use of common backplates, one for Sizes 00–2 and one for Sizes 3–4. In addition, panel space is reduced dramatically through the use of unique corner cavities for mounting the wide variety of modifications.


Size 5, 300A, 600V, Open Size 6, 600A, 600V, Open
Class A201 Size 5 and 6 contactors are front clapper design, AC operated with the armature pivoting on dual needle bearings which assure accurate contact alignment. The contactor base is molded of a high impact, nontracking, non-hygroscopic glass polyester material permitting front mounting and wiring on a steel panel. Floating magnet assures quiet operation. Size 5 and 6 contactors must be mounted with the line terminals directly above the load terminals. Multi-voltage coil ratings allow selection of the voltage which closely matches the actual system voltage to assure optimum contactor operation. Each contactor accommodates two Type J11 auxiliary contacts, providing up to four auxiliary circuits, normally-open or normallyclosed (NO and NC). A201 Size 5 and 6 contactors and starters are UL recognized when supplied without terminals. When supplied with terminals, the devices are UL listed. Two special configurations of the Class A201 Size 5 and 6 contactors are available:

Latched Design
This is a mechanically held, electrically released device. It is applied where the contactor must remain closed during extreme voltage fluctuations or power failure. It is also suitable for applications requiring quiet operation since the operating coil is de-energized when the contactor is closed. The latch assembly consists of a mechanical latch mechanism, electrically operated AC trip solenoid and a clearing contact


DC Operated
This device is DC operated. It is used where low dropout voltage or exceptionally quiet operation is desired. The DC assembly consists of a DC operating coil, integrally mounted rectifier and shorting contact


When Ordering Specify

Order by Part Number from the tables below, plus suffix for coil voltages, verifying usage of appropriate sizes.

Size 7, 900A, 600V, Open Size 8, 1350A, 600V, Open Size 9, 2500A, 600V, Open
Class A201 Size 7 and 8 contactors are DC operated side clapper design with the shaft mounted on dual needle bearings to ensure positive contact alignment and long contact life. A steel panel base permits mounting on angle or channel without additional support, for versatile low cost installation. Each stationary contact assembly is mounted on an individual molded insulator. Each pair of contacts is surrounded by a De-ion grid type arc quencher for rapid and confined arc interruption and long contact life. The shunt for each pole is made of flexible, braided copper cable for freedom of movement and long life. The rugged DC operating coils are designed to operate at high temperature and insulated to meet Class H service. An integrally mounted avalanche type silicon rectifier supplies DC coil voltage from the AC control circuit. Sizes 7 and 8 accommodate three Type L-63 auxiliary contacts which are easily converted from normallyopen to normally-closed, providing auxiliary circuit flexibility. Size 9 uses L-64 auxiliary contacts with a total of four circuits. A201 Size 7, 8 and 9 contactors and starters are UL recognized when supplied without terminals. When supplied with terminals, the devices are UL listed.


Application Description
Magnetic contactors are used to switch transformers and capacitors and to control electrical power circuits such as heating, lighting and motors that require no overload protection, or where overload protection is separately provided. They can be operated remotely by manual or automatic pilot devices.


Standards and Certifications
A201 contactors are UL listed components and also have CSA certification.



Instructional Leaflets
16960B Sizes 00–1 Magnetic Contactor,
Non-reversing or Reversing
16961E Size 2 Magnetic Contactor,
Non-reversing or Reversing
13238G Size 3 Magnetic Contactor,
Non-reversing or Reversing
17001C Size 4 Magnetic Contactor,
Non-reversing or Reversing
17049D Size 5 Magnetic Contactor,
Non-reversing or Reversing
17053B Size 6 Magnetic Contactor,
Non-reversing or Reversing
17048 Sizes 7–8 Magnetic Contactor,
Non-reversing or Reversing
16978 Size 9 Magnetic Contactor,
Non-reversing or Reversing

A200 Series Contactors

A201 Size 1 Contactor

Eaton A200 Series Non-Reversing, Sizes 00–9 Contactor

Non-Reversing, Sizes 00–9 - Front Connected Contactors
Size Amps Max. UL Horsepower
 Two Poles Open Part Number Three Poles Open Part Number Four Poles Open Part Number Five Poles Open Part Number
230V 480V
Sizes 00-6
00 9 1 2 A201KABA A201KACA A201KADA A201KAEA
0 18 2 5 A201K0BA A201K0CA A201K0DA A201K0EA
1 27 3 10 A201K1BA A201K1CA A201K1DA A201K1EA
2 45 7-1/2 25 A201K2BA A201K2CA A201K2DA A201K2EA
3 90 - 50 A201K3BA A201K3CA A201K3DA A201K3EA
4 135 - 100 A201K4BA A201K4CA A201K4DA A201K4EA
5 270 - 200 A201K5BA A201K5CA - -
6 540   400 A201K6BA A201K6CA - -
Sizes 7-9
7(1) 810 - 600 A201K7BA A201K7CA - -
8(1) 1215 - 900 A201K8BA A201K8CA - -
9(1) 2250 - 1600 A201K9BA A201K9CAZ1(2)(3) - -


Rear Connected Contactors

120V Rectified Coil/Open Only

Size Part Number
7 A201K7CJZ1Z4
8 A201K8CJZ1Z4
9 A201K9CJZ1Z4

Notes:

Select required contactor by Part Number and replace the magnet coil alpha designation in the part number (A) with the proper Coil Voltage Code.
(1) Sizes 7–9 use rectifier with DC coil.
(2) For Size 9, only available coil voltage is 120V.
(3) Supplied without terminal lugs.

Coil Suffix


Coil Volts and Hz Code Suffix
Sizes 00–6
120/60 or 110/50 A
200–208/60 B
240/60 W
Sizes 7, 8 and 9 (2)
480/60 X
600/60 E
110–120/50 or 60 J
220–240/50 or 60 K
440–480/50 or 60 U
600/60 E

Size 1 Horizontal
Reversing Contactor

Eaton A200 Series Non-Reversing, Sizes 00–9 Contactor

Reversing, Class A211—Horizontally Mounted and Class A251—Vertically Mounted Reversing Contactors
Size Amps Max. UL Horsepower
 Two Poles Open Part Number Three Poles Open Part Number
230V 480V
Sizes 00-6
0 18 2 5 A211K0CA A251K0CA
1 27 3 10 A211K1CA A251K1CA
2 45 7-1/2 25 A211K2CA A251K2CA
3 90 - 50 A211K3CA A251K3CA
4 135 - 100 A211K4CA A251K4CA
5 270 - 200 A211K5CA A251K5CA
6 540   400 A211K6CA A251K6CA
Sizes 7-9
7(1) 810 - 600 - A251K7CA
8(1) 1215 - 900 - A251K8CA
9(1) 2250 - 1600 - A251K9CA(2)

Coil Suffix

Coil Volts and Hz Code Suffix
Sizes 00–6
120/60 or 110/50 A
200–208/60 B
240/60 W
Sizes 7, 8 and 9 (2)
480/60 X
600/60 E
110–120/50 or 60 J
220–240/50 or 60 K
440–480/50 or 60 U
600/60 E

Notes:

Select required contactor by Part Number and replace the magnet coil alpha designation in the part number (A) with the proper Coil Voltage Code.
(1) Sizes 7–9 use rectifier with DC coil.
(2) For Size 9, only available coil voltage is 120V.

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