APC REMOTE POWER-OFF DEVICE AP9830 - Manual (Page 7)

4 Remote Power-Off Device — Installation and Quick Start
Eliminate the Hazard
Use an
Emergency
Power Off
system Matrix-UPS models and many Smart-UPS models have an
integrated EPO system that allows connected equipment to be
deenergized immediately from a remote location without the
UPS switching to battery operation.
Warning
If brief periods of UPS output power (when the
remote switch is off) can cause personal injury
or damage to hardware or data, do not use the
Remote Power-Off Device as the only means of
controlling UPS output power.
Electrical
Hazard
The Remote Power-Off Device does not provide
full Emergency Power-Off (EPO) protection. For
full EPO protection, connect the Remote Power-
Off Device to an EPO system that removes utility
power from the UPS when engaged.
See also
To set up the integrated EPO system of an APC
UPS, see the manual provided with the UPS.
Warning
To avoid damage to the UPS, connect its EPO
system only to Safety Extra Low Voltage
(SELV) circuits that are contact-closure
circuits.