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INSTRUCTION LEAFLET IL17053

Effective  MAY 2011
Supersedes JUNE 1989

Instructions for A201, A211, A251
Size 6, 2 and 3 Pole Contactors, 
Nonreversing or Reversing

THE CONTACTOR

A201 contactors are designed for the control of inductive or non-
inductive loads at voltages between 120 and 600, AC. The units are 
suitable for mounting on either steel or insulated panels. All parts are 
front removable.Contactors should be protected against short circuits by 
branch circuit protective devices selected in accordance with the National 
Electrical Code (NEC).

This motor controller is suitable for use on a circuit capable of delivering 
not more than the current (rms symmetrical amperes) shown below in 
circuits rated not more than the voltage shown in Table I.

INSTALLATION

This industrial type control is designed to be installed, operated, and 
maintained by adequately trained workmen. These instructions do not 
cover all details, variations, or combinations of the equipment, its storage, 
delivery, installation, check out, safe operation, or maintenance. Care 
must be exercised to comply with local, state, and national regulations, 
as well as safety practices, for this type of equipment. See page 5 for 
mounting dimensions and terminal information.

Mount the contactor on a vertical surface with the line terminals above 
the load terminals. Once installed, the assembly should be checked 
to ensure  proper operation of the basic contactor mechanism and 
accessory devices before power is applied.

The following list and the MAINTENANCE 
instructions 

should be used as a guide:

a) The crossbar and springs must operate freely.

b) Auxiliary contacts and mechanical interlocks 
must be properly installed and adjusted.

c) The proper operating coil must be installed and 
properly connected.

d) The crossbar must be in position. The contactor 
will not operate if the crossbar is rotated forward, 
out of position.

e) The arc box must be in place. The contactor 
must never be operated in a power circuit unless 
the arc box is securely bolted in place.

f) The main contacts must have overtraveI and 
spring force and move freely.

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