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60kW InfraStruXure PDU—Operation and Configuration 49
How to Test the Emergency Power Off
Switch
Overview
Connecting the switch. The
Emergency Power Off (EPO) switch
connects to the PDU user connection
plate. The figure on the right shows the
location of the user connection plate on
the roof of the PDU. Connect a switch
using one of the three following
connections:
• Contact closure
•24VAC
•24VDC
Note
APC offers an optional InfraStruXure EPO System (EPW9). Contact your APC sales
representative, or visit the APC Web site (www.apc.com) for more information.
Caution
If you are not connecting an Emergency Power Off switch to the PDU, leave the
Arm/Test rocker switch on the PDU monitoring unit in the Test position.
Note
Contact closure is recommended.
Caution
Only a licensed electrician can connect an Emergency Power Off switch to the PDU.
For instructions, see the Installation and Start-Up manual included with your PDU.