Rockwell Automation 1503FR MV Controllers - Adjustment to Interlocking Mechanism - Manual (Page 7)

Chapter
2

1503FR-IN001B-EN-E – June 2013
Product
Description
The Allen-Bradley Bulletin 1503FR Frame Interlocked
Contactor Kit uses electrically held contactors, 400 amp, and
is rated from 2400 to 7200 volts. The Bulletin 1503FR can
be used on reversing or two speed application. The
mechanical interlock prevents the possibility of both
contactors being energized at the same time. Each Bulletin
1503FR Kit is also supplied with two IntelliVAC control
modules, to control the operation of each contactor. Also
included is a wiring harness that connects each IntelliVAC
control module to the medium voltage Bulletin 1502 400
amp contactor.
Note: This item can only be used on reversing or two-speed
applications.
Part Number Current Rating Contactor Type Control Voltage Voltage Range
1503FR-E4GU 400A Electrically Held 110-120VAC 2.5 – 5.0 kV
1503FR-E4KU 400A Electrically Held 110-120VAC 5.1-6.9 kV
Interlock Adjustment
If the mechanical interlock between the two contactors ever
needs to be adjusted please use following procedure.
A T T E N T I O N A T T E N T I O N To avoid shock hazards, lockout incoming
power before working on the equipment. Verify
with a hot stick or appropriate voltage measuring
device that all circuit s are voltage free. Failure
to do so may result in severe burns, injury or
death.
1) On the right hand side of the interlocked contactor, is
the mechanical interlock between the top and bottom
contactor. (Figure 2.1)
Ratings