Rockwell-automation 592- E300 Overload Relay User Manual Manual de usuario Pagina 15

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Rockwell Automation Publication 193-UM015B-EN-P - June 2014 15
Product Overview Chapter 1
Module Description
The E300 Electronic Overload Relay is comprised of three modules. All three
modules are required to make a functional overload relay.
Sensing Module
Control Module
Communication Module
Sensing Module
Figure 1 - Sensing Module
The sensing module electronically samples the current, voltage, power, and
energy data consumed by the electric motor internal to the module. Users can
pick from one of three varieties of the sensing modules depending on the motor
diagnostic information that is needed for the motor protection application:
Cu
rrent Sensing
Current and Ground Fault Current Sensing
Current, Ground Fault Current, Voltage, and Power Sensing
T
he
current ranges for each of three varieties of sensing module are shown below:
0.5…30 A
6…60 A
10…100 A
20…200 A
Users can choose how the sensing module mechanically mounts inside the
elect
rical enclosure. The following mounting mechanisms are available for the
sensing module.
Mount to the load side of an Allen-Bradley Bulletin 100 IEC Contactor
Mount to the load side of an Allen-Bradley Bulletin 500 NEMA
Cont
actor
DIN Rail / Panel Mount with power terminals
Replacement DIN Rail / Panel Mount with power terminals for an
Al
len-Bradley E3 Plus panel mount adapter
DIN Rail / Panel Mount with pass-thru power conductors
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