Filter
Top Products
Safety Instructions for Europe, Middle East, and Africa
WARNING: Only certied electricians may install the system and the wiring to the
products IT controls.
WARNING: Assembly has not been evaluated for emergency life critical applications,
but is intended for emergency equipment power off.
Note: Wiring from the system to the products IT controls can either be installed in conduits
or installed without conduits if the wires are in accordance with IEC/EN 60364-5-52 or
equivalent local electric code.
Caution: EPO can be achieved with either a contact closure or application of an external
24 VAC or 24 VDC from a SELV or PELV source. It is important to note that hazardous
voltage from the mains voltage must be isolated from the contact closure or 24 VAC, 24
VDC. The EPO circuit contact closure, the 24 VAC, or the 24 VDC are considered SELV
circuits as dened in EN60950 “Safety of Information Technology Equipment” or PELV
circuits as dened in IEC 60364-4-41 “Electrical Installations of Buildings Protection for
Safety—Protection Against Electric Shock.” SELV is an abbreviation for Safety Extra Low
Voltage. PELV is an abbreviation for Protective Extra Low Voltage. SELV and PELV
circuits are isolated from the mains through a safety isolating transformer, and designed so
that under isolated from the mains through a safety isolating transformer, and designed so
that under normal conditions the voltage is limited to 42.4 Vpeak or 60 VDC.
2
Emergency Power Off System Installation and Operation
990–1611C-001