Effective Date: 2/04
IL17574C
Page 3-7
IQ 300
Effective Date: 2/04
Page 3-7
For more information visit:
www.cutler-hammer.eaton.com
Additionally, the IQ 300 may require connection to a PowerNet network and/or an
external pulse counter
(IQ 320 Base version)
. The steps for completing each type of
wiring are described in the following sections.
Note: Cutler-Hammer recommends using a ferrule connector on all plug-in connec-
tors to eliminate stray wires from shorting.
ALL WIRING MUST CONFORM TO NATIONAL AND LOCAL CODES.
SUFFICIENT ROOM MUST BE PROVIDED FOR ROUTING OF ALL
POWER CABLES. ALL SIGNAL CABLES MUST BE ROUTED
SEPARATELY FROM POWER CABLES. THE CATEGORY 5 CABLE
CONNECTING THE IQ 300 DISPLAY MODULE AND THE IQ 300 BASE
MODULE IS RATED AT 300V. THIS CABLE MUST NOT BE ROUTED IN
THE SAME WIRING CHANNEL AS THE SYSTEM POWER.
3.3.1
Wiring System Current and Voltage
The IQ 300 must be connected to sources of current and voltage for each phase
that is to be monitored. Current transformers having a 5 A secondary provide the
phase current measurement. Phase voltages under 600V may be measured directly
by the IQ 300. Phase voltages over 600V must be measured using potential
transformers.
3.3.2
Wiring Diagrams for Various System Configurations
Recommended IQ 300 wiring diagrams for current and potential transformers are
shown below in figures 3.5 through 3.14. It is the user’s responsibility to determine
which wiring diagram applies and to specify and install all current transformers,
potential transformers, fuses and other components.
3.3.2.1 IQ 330 & IQ 330M Current Connector
This warning applies with reference to the current connector.
THE IQ 330 AND IQ 330M TERMINAL BLOCK (FIGURE 2.4d) MUST NEVER BE
REMOVED WHILE THE UNIT IS ENERGIZED. PERSONAL INJURY AND / OR
EQUIPMENT DAMAGE MAY RESULT.
CAUTION
WARNING
